ox/src/core/_test/AbiEvent.test.ts

Ethereum Standard Library

import { Abi, AbiEvent, Hex } from 'ox'
import { describe, expect, test } from 'vp/test'
import { wagmiContractConfig } from '../../../test/constants/abis.js'
import { address } from '../../../test/constants/addresses.js'
import { anvilMainnet } from '../../../test/prool.js'

describe('assertArgs', () => {
  test('default', () => {
    const abiEvent = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const args = AbiEvent.decode(abiEvent, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    AbiEvent.assertArgs(abiEvent, args, {
      from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      value: 1n,
    })
  })

  test('default', () => {
    const abiEvent = AbiEvent.from(
      'event Transfer(address indexed, address indexed, uint256)',
    )
    const args = AbiEvent.decode(abiEvent, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    AbiEvent.assertArgs(abiEvent, args, [
      '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      1n,
    ])
  })

  test('error: args mismatch, named', () => {
    const abiEvent = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const args = AbiEvent.decode(abiEvent, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
      ],
    })

    expect(() =>
      AbiEvent.assertArgs(abiEvent, args, {
        from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad',
        to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        value: 1n,
      }),
    ).toThrowErrorMatchingInlineSnapshot(`
      [AbiEvent.ArgsMismatchError: Given arguments do not match the expected arguments.

      Event: event Transfer(address indexed from, address indexed to, uint256 value)
      Expected Arguments: 
        from:   0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC
        to:     0xa5Cc3C03994DB5B0d9a5EEdD10CaBab0813678ad
        value:  1
      Given Arguments: 
        from:   0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad
        to:     0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac
        value:  1]
    `)
  })

  test('error: args mismatch, unnamed', () => {
    const abiEvent = AbiEvent.from(
      'event Transfer(address indexed, address indexed, uint256)',
    )
    const args = AbiEvent.decode(abiEvent, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(() =>
      AbiEvent.assertArgs(abiEvent, args, [
        '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad',
      ]),
    ).toThrowErrorMatchingInlineSnapshot(`
      [AbiEvent.ArgsMismatchError: Given arguments do not match the expected arguments.

      Event: event Transfer(address indexed, address indexed, uint256)
      Expected Arguments: 
        0:  0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC
        1:  0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC
        2:  1
      Given Arguments: 
        0:  0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad]
    `)
  })

  test('error: args mismatch, string', () => {
    const abiEvent = AbiEvent.from('event Transfer(string indexed a)')
    const args = AbiEvent.decode(abiEvent, {
      topics: [
        '0x7cebee4ee226a36ff8751d9d69bb8265f5138c825f8c25d7ebdd60d972ffe5be',
        '0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
      ],
    })
    expect(() =>
      AbiEvent.assertArgs(abiEvent, args, {
        a: '0xdeadbeef',
      }),
    ).toThrowErrorMatchingInlineSnapshot(`
    [AbiEvent.ArgsMismatchError: Given arguments do not match the expected arguments.

    Event: event Transfer(string indexed a)
    Expected Arguments: 
      a:  0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8
    Given Arguments: 
      a:  0xdeadbeef]
  `)
  })

  test('error: input not found, named', () => {
    const abiEvent = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const args = AbiEvent.decode(abiEvent, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(() =>
      AbiEvent.assertArgs(abiEvent, args, {
        // @ts-expect-error
        a: 'b',
        from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ad',
        to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        value: 1n,
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `[AbiEvent.InputNotFoundError: Parameter "a" not found on \`event Transfer(address indexed from, address indexed to, uint256 value)\`.]`,
    )
  })

  test('error: input not found, unnamed', () => {
    const abiEvent = AbiEvent.from(
      'event Transfer(address indexed, address indexed, uint256)',
    )
    const args = AbiEvent.decode(abiEvent, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(() =>
      // @ts-expect-error
      AbiEvent.assertArgs(abiEvent, args, [
        '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        1n,
        1n,
      ]),
    ).toThrowErrorMatchingInlineSnapshot(
      `[AbiEvent.InputNotFoundError: Parameter "3" not found on \`event Transfer(address indexed, address indexed, uint256)\`.]`,
    )
  })

  test('error: provided args, but no actual event args', () => {
    const abiEvent = AbiEvent.from('event Transfer()')
    const args = AbiEvent.decode(abiEvent, {
      topics: [
        '0x406dade31f7ae4b5dbc276258c28dde5ae6d5c2773c5745802c493a2360e55e0',
      ],
    })
    expect(() =>
      // @ts-expect-error
      AbiEvent.assertArgs(abiEvent, args, {
        from: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678az',
        to: '0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        value: 1n,
      }),
    ).toThrowErrorMatchingInlineSnapshot(`
    [AbiEvent.ArgsMismatchError: Given arguments do not match the expected arguments.

    Event: event Transfer()
    Expected Arguments: None
    Given Arguments: 
      from:   0xa5cc3c03994db5b0d9a5eedd10cabab0813678az
      to:     0xa5cc3c03994db5b0d9a5eedd10cabab0813678ac
      value:  1]
  `)
  })
})

describe('decode', () => {
  test('behavior: named', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const decoded = AbiEvent.decode(transfer, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(decoded).toMatchInlineSnapshot(`
      {
        "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "to": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "value": 1n,
      }
    `)
  })

  test('behavior: unnamed', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed, address indexed, uint256)',
    )
    const decoded = AbiEvent.decode(transfer, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(decoded).toMatchInlineSnapshot(`
      [
        "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        1n,
      ]
    `)
  })

  test('behavior: named + unnamed', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256)',
    )
    const decoded = AbiEvent.decode(transfer, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(decoded).toMatchInlineSnapshot(`
      {
        "2": 1n,
        "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "to": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
      }
    `)
  })

  test('behavior: named + unnamed', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed, uint256 value)',
    )
    const decoded = AbiEvent.decode(transfer, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(decoded).toMatchInlineSnapshot(`
      {
        "1": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "value": 1n,
      }
    `)
  })

  test('behavior: named + unnamed', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed, uint256 value, uint256)',
    )
    const decoded = AbiEvent.decode(transfer, {
      data: '0x00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0x9ed053bb818ff08b8353cd46f78db1f0799f31c9e4458fdb425c10eccd2efc44',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(decoded).toMatchInlineSnapshot(`
      {
        "1": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "3": 1n,
        "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "value": 1n,
      }
    `)
  })

  test('behavior: string inputs', () => {
    const transfer = AbiEvent.from('event Transfer(string indexed a)')

    const decoded = AbiEvent.decode(transfer, {
      topics: [
        '0x7cebee4ee226a36ff8751d9d69bb8265f5138c825f8c25d7ebdd60d972ffe5be',
        '0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
      ],
    })

    expect(decoded).toMatchInlineSnapshot(`
    {
      "a": "0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8",
    }
  `)
  })

  test('error: topics mismatch, named', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address to, uint256 indexed value)',
    )

    expect(() =>
      AbiEvent.decode(transfer, {
        topics: [
          '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
          '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        ],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `[AbiEvent.TopicsMismatchError: Expected a topic for indexed event parameter "value" for "event Transfer(address indexed from, address to, uint256 indexed value)".]`,
    )
  })

  test('error: topics mismatch, unnamed', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed, address, uint256 indexed)',
    )

    expect(() =>
      AbiEvent.decode(transfer, {
        topics: [
          '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
          '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        ],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `[AbiEvent.TopicsMismatchError: Expected a topic for indexed event parameter for "event Transfer(address indexed, address, uint256 indexed)".]`,
    )
  })

  test('error: data mismatch', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address to, uint256 value)',
    )

    expect(() =>
      AbiEvent.decode(transfer, {
        data: '0x0000000000000000000000000000000000000000000000000000000023c34600',
        topics: [
          '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
          '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
          '0x00000000000000000000000070e8a65d014918798ba424110d5df658cde1cc58',
        ],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `
    [AbiEvent.DataMismatchError: Data size of 32 bytes is too small for non-indexed event parameters.

    Non-indexed Parameters: (address to, uint256 value)
    Data:   0x0000000000000000000000000000000000000000000000000000000023c34600 (32 bytes)]
  `,
    )
  })

  test('error: data mismatch', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address to, uint256 value)',
    )

    expect(() =>
      AbiEvent.decode(transfer, {
        topics: [
          '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
          '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
          '0x00000000000000000000000070e8a65d014918798ba424110d5df658cde1cc58',
        ],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `
    [AbiEvent.DataMismatchError: Data size of 0 bytes is too small for non-indexed event parameters.

    Non-indexed Parameters: (address to, uint256 value)
    Data:   0x (0 bytes)]
  `,
    )
  })

  test('error: invalid data size', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )

    expect(() =>
      AbiEvent.decode(transfer, {
        data: '0x01',
        topics: [
          '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
          '0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
          '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
        ],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `
    [AbiEvent.DataMismatchError: Data size of 1 bytes is too small for non-indexed event parameters.

    Non-indexed Parameters: (uint256 value)
    Data:   0x01 (1 bytes)]
  `,
    )
  })

  test('error: invalid boolean', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, bool sender)',
    )

    expect(() =>
      AbiEvent.decode(transfer, {
        data: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        topics: [
          '0x3da3cd3cf420c78f8981e7afeefa0eab1f0de0eb56e78ad9ba918ed01c0b402f',
          '0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
          '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
        ],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `
    [Bytes.InvalidBytesBooleanError: Bytes value \`221,242,82,173,27,226,200,155,105,194,176,104,252,55,141,170,149,43,167,241,99,196,161,22,40,245,90,77,245,35,179,239\` is not a valid boolean.

    The bytes array must contain a single byte of either a \`0\` or \`1\` value.]
  `,
    )
  })

  test('error: event selector topic mismatch', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, bool sender)',
    )

    expect(() =>
      AbiEvent.decode(transfer, {
        topics: [
          '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
          '0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
          '0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
        ],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `
    [AbiEvent.SelectorTopicMismatchError: topics[0]="0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef" does not match the expected topics[0]="0x3da3cd3cf420c78f8981e7afeefa0eab1f0de0eb56e78ad9ba918ed01c0b402f".

    Event: event Transfer(address indexed from, address indexed to, bool sender)
    Selector: 0x3da3cd3cf420c78f8981e7afeefa0eab1f0de0eb56e78ad9ba918ed01c0b402f]
  `,
    )
  })

  test('behavior: overload with abi', () => {
    const abi = Abi.from([
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    ])
    const log = {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    } as const

    // Test both overload patterns
    const abiEvent = AbiEvent.fromAbi(abi, 'Transfer')
    const decoded1 = AbiEvent.decode(abiEvent, log)
    const decoded2 = AbiEvent.decode(abi, 'Transfer', log)

    expect(decoded1).toEqual(decoded2)
    expect(decoded2).toMatchInlineSnapshot(`
      {
        "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "to": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "value": 1n,
      }
    `)
  })

  test('behavior: overload with hex selector', () => {
    const abi = Abi.from([
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    ])
    const log = {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    } as const

    // Test with hex selector
    const decoded = AbiEvent.decode(
      abi,
      '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
      log,
    )

    expect(decoded).toMatchInlineSnapshot(`
      {
        "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "to": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "value": 1n,
      }
    `)
  })

  test('behavior: anonymous event', () => {
    const abiEvent = AbiEvent.from({
      type: 'event',
      name: 'Transfer',
      anonymous: true,
      inputs: [
        { name: 'from', type: 'address', indexed: true },
        { name: 'to', type: 'address', indexed: true },
        { name: 'value', type: 'uint256', indexed: false },
      ],
    })
    const decoded = AbiEvent.decode(abiEvent, {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
      ],
    })
    expect(decoded).toMatchInlineSnapshot(`
      {
        "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
        "to": "0xa5Cc3C03994DB5B0d9a5EEdD10CaBab0813678ad",
        "value": 1n,
      }
    `)
  })
})

describe('decodeLog', () => {
  test('behavior: decodes event from selector topic', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const decoded = AbiEvent.decodeLog([transfer], {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        AbiEvent.getSelector(transfer),
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    })
    expect(decoded).toMatchInlineSnapshot(`
      {
        "args": {
          "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
          "to": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
          "value": 1n,
        },
        "event": {
          "hash": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
          "inputs": [
            {
              "indexed": true,
              "name": "from",
              "type": "address",
            },
            {
              "indexed": true,
              "name": "to",
              "type": "address",
            },
            {
              "name": "value",
              "type": "uint256",
            },
          ],
          "name": "Transfer",
          "type": "event",
        },
      }
    `)
  })

  test('error: selector topic not found', () => {
    const transfer = AbiEvent.from('event Transfer(address indexed from)')

    expect(() => AbiEvent.decodeLog([transfer], { data: '0x', topics: [] }))
      .toThrowErrorMatchingInlineSnapshot(`
      [AbiEvent.SelectorTopicNotFoundError: Selector topic not found.]
    `)
  })
})

describe('extractLogs', () => {
  test('behavior: decodes matching logs', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const log = {
      data: '0x0000000000000000000000000000000000000000000000000000000000000001',
      topics: [
        AbiEvent.getSelector(transfer),
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
        '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
      ],
    } as const
    const decoded = AbiEvent.extractLogs([transfer], [log])

    expect(decoded).toMatchInlineSnapshot(`
      [
        {
          "args": {
            "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
            "to": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
            "value": 1n,
          },
          "data": "0x0000000000000000000000000000000000000000000000000000000000000001",
          "eventName": "Transfer",
          "topics": [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac",
          ],
        },
      ]
    `)
  })

  test('behavior: skips non-matching logs in strict mode', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const approval = AbiEvent.from(
      'event Approval(address indexed owner, address indexed spender, uint256 value)',
    )
    const decoded = AbiEvent.extractLogs(
      [transfer],
      [
        {
          data: '0x',
          topics: [AbiEvent.getSelector(approval)],
        },
        {
          data: '0x',
          topics: [],
        },
      ],
    )

    expect(decoded).toMatchInlineSnapshot(`[]`)
  })

  test('behavior: filters by event name', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const approval = AbiEvent.from(
      'event Approval(address indexed owner, address indexed spender, uint256 value)',
    )
    const decoded = AbiEvent.extractLogs(
      [transfer, approval],
      [
        {
          data: '0x0000000000000000000000000000000000000000000000000000000000000001',
          topics: [
            AbiEvent.getSelector(transfer),
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
          ],
        },
        {
          data: '0x0000000000000000000000000000000000000000000000000000000000000002',
          topics: [
            AbiEvent.getSelector(approval),
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
          ],
        },
      ],
      { eventName: 'Approval' },
    )

    expect(decoded).toMatchInlineSnapshot(`
      [
        {
          "args": {
            "owner": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
            "spender": "0xa5Cc3C03994DB5B0d9a5EEdD10CaBab0813678ad",
            "value": 2n,
          },
          "data": "0x0000000000000000000000000000000000000000000000000000000000000002",
          "eventName": "Approval",
          "topics": [
            "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad",
          ],
        },
      ]
    `)
  })

  test('behavior: filters by arguments', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const decoded = AbiEvent.extractLogs(
      [transfer],
      [
        {
          data: '0x0000000000000000000000000000000000000000000000000000000000000001',
          topics: [
            AbiEvent.getSelector(transfer),
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
          ],
        },
        {
          data: '0x0000000000000000000000000000000000000000000000000000000000000002',
          topics: [
            AbiEvent.getSelector(transfer),
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
          ],
        },
      ],
      {
        args: {
          from: '0xa5CC3c03994Db5b0D9a5eeDd10CaBaB0813678Ac',
        },
      },
    )

    expect(decoded).toMatchInlineSnapshot(`
      [
        {
          "args": {
            "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
            "to": "0xa5Cc3C03994DB5B0d9a5EEdD10CaBab0813678ad",
            "value": 1n,
          },
          "data": "0x0000000000000000000000000000000000000000000000000000000000000001",
          "eventName": "Transfer",
          "topics": [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad",
          ],
        },
      ]
    `)
  })

  test('behavior: tries ABI events with matching selectors', () => {
    const erc20Transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const erc721Transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 indexed tokenId)',
    )
    const decoded = AbiEvent.extractLogs(
      [erc20Transfer, erc721Transfer],
      [
        {
          data: '0x',
          topics: [
            AbiEvent.getSelector(erc721Transfer),
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
            '0x0000000000000000000000000000000000000000000000000000000000000001',
          ],
        },
      ],
    )

    expect(decoded).toMatchInlineSnapshot(`
      [
        {
          "args": {
            "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
            "to": "0xa5Cc3C03994DB5B0d9a5EEdD10CaBab0813678ad",
            "tokenId": 1n,
          },
          "data": "0x",
          "eventName": "Transfer",
          "topics": [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad",
            "0x0000000000000000000000000000000000000000000000000000000000000001",
          ],
        },
      ]
    `)
  })

  test('behavior: non-strict mode decodes missing indexed topics from data', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const decoded = AbiEvent.extractLogs(
      [transfer],
      [
        {
          data: '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad0000000000000000000000000000000000000000000000000000000000000001',
          topics: [
            AbiEvent.getSelector(transfer),
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
          ],
        },
      ],
      { strict: false },
    )

    expect(decoded).toMatchInlineSnapshot(`
      [
        {
          "args": {
            "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
            "to": "0xa5Cc3C03994DB5B0d9a5EEdD10CaBab0813678ad",
            "value": 1n,
          },
          "data": "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad0000000000000000000000000000000000000000000000000000000000000001",
          "eventName": "Transfer",
          "topics": [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac",
          ],
        },
      ]
    `)
  })

  test('behavior: non-strict mode returns partial logs when decoding fails', () => {
    const transfer = AbiEvent.from('event Transfer(address indexed from)')
    const decoded = AbiEvent.extractLogs(
      [transfer],
      [
        {
          data: '0x',
          topics: [AbiEvent.getSelector(transfer), '0xdead'],
        },
      ],
      { strict: false },
    )

    expect(decoded).toMatchInlineSnapshot(`
      [
        {
          "args": {},
          "data": "0x",
          "eventName": "Transfer",
          "topics": [
            "0x2d339b1e3334d3f43e7aa6d5b1fa3ca5e4228b2dd547d1710c726019d98e53fa",
            "0xdead",
          ],
        },
      ]
    `)
  })

  test('behavior: formats RPC logs', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )
    const decoded = AbiEvent.extractLogs(
      [transfer],
      [
        {
          address: '0xfba3912ca04dd458c843e2ee08967fc04f3579c2',
          blockHash:
            '0xabe69134e80a12f6a93d0aa18215b5b86c2fb338bae911790ca374a8716e01a4',
          blockNumber: '0x12d846c',
          data: '0x0000000000000000000000000000000000000000000000000000000000000001',
          logIndex: '0x10f',
          removed: false,
          topics: [
            AbiEvent.getSelector(transfer),
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
            '0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad',
          ],
          transactionHash:
            '0xcfa52db0bc2cb5bdcb2c5bd8816df7a2f018a0e3964ab1ef4d794cf327966e93',
          transactionIndex: '0x91',
        },
      ],
    )

    expect(decoded).toMatchInlineSnapshot(`
      [
        {
          "address": "0xfba3912ca04dd458c843e2ee08967fc04f3579c2",
          "args": {
            "from": "0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC",
            "to": "0xa5Cc3C03994DB5B0d9a5EEdD10CaBab0813678ad",
            "value": 1n,
          },
          "blockHash": "0xabe69134e80a12f6a93d0aa18215b5b86c2fb338bae911790ca374a8716e01a4",
          "blockNumber": 19760236n,
          "blockTimestamp": undefined,
          "data": "0x0000000000000000000000000000000000000000000000000000000000000001",
          "eventName": "Transfer",
          "logIndex": 271,
          "removed": false,
          "topics": [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac",
            "0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ad",
          ],
          "transactionHash": "0xcfa52db0bc2cb5bdcb2c5bd8816df7a2f018a0e3964ab1ef4d794cf327966e93",
          "transactionIndex": 145,
        },
      ]
    `)
  })
})

describe('encode', () => {
  test('default', () => {
    const transfer = AbiEvent.from('event Transfer()')
    expect(AbiEvent.encode(transfer)).toMatchInlineSnapshot(`
    {
      "topics": [
        "0x406dade31f7ae4b5dbc276258c28dde5ae6d5c2773c5745802c493a2360e55e0",
      ],
    }
  `)
  })

  test('behavior: no hash', () => {
    const transfer = AbiEvent.from('event Transfer()')
    expect(AbiEvent.encode({ ...transfer, hash: undefined }))
      .toMatchInlineSnapshot(`
    {
      "topics": [
        "0x406dade31f7ae4b5dbc276258c28dde5ae6d5c2773c5745802c493a2360e55e0",
      ],
    }
  `)
  })

  test('behavior: multiple inputs, no args', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed a, address indexed b, uint256 c)',
    )
    expect(AbiEvent.encode(transfer)).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
      ],
    }
  `)
  })

  test('behavior: multiple inputs, with args, named', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed a, address indexed b, uint256 c)',
    )

    expect(
      AbiEvent.encode(transfer, {
        a: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
        null,
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, {
        b: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        null,
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, {
        a: '0x0000000000000000000000000000000000000000',
        b: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, {
        a: null,
        b: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        null,
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, {
        a: ['0x0000000000000000000000000000000000000000', address.vitalik],
        b: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        [
          "0x0000000000000000000000000000000000000000000000000000000000000000",
          "0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045",
        ],
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)
  })

  test('behavior: multiple inputs, with args, unnamed', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed, address indexed, uint256 )',
    )

    expect(
      AbiEvent.encode(transfer, ['0x0000000000000000000000000000000000000000']),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
        null,
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, [
        null,
        '0x0000000000000000000000000000000000000000',
      ]),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        null,
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, [
        '0x0000000000000000000000000000000000000000',
        '0x0000000000000000000000000000000000000000',
      ]),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, [
        ['0x0000000000000000000000000000000000000000', address.vitalik],
        '0x0000000000000000000000000000000000000000',
      ]),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        [
          "0x0000000000000000000000000000000000000000000000000000000000000000",
          "0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045",
        ],
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)
  })

  test('behavior: multiple inputs, with args, partially named', () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed a, address indexed, uint256 c)',
    )

    expect(
      AbiEvent.encode(transfer, {
        a: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
        null,
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, {
        1: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        null,
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, {
        a: '0x0000000000000000000000000000000000000000',
        1: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, {
        a: null,
        1: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        null,
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)

    expect(
      AbiEvent.encode(transfer, {
        a: ['0x0000000000000000000000000000000000000000', address.vitalik],
        1: '0x0000000000000000000000000000000000000000',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        [
          "0x0000000000000000000000000000000000000000000000000000000000000000",
          "0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045",
        ],
        "0x0000000000000000000000000000000000000000000000000000000000000000",
      ],
    }
  `)
  })

  test('behavior: string inputs', () => {
    const transfer = AbiEvent.from('event Transfer(string indexed a, string b)')

    expect(
      AbiEvent.encode(transfer, {
        a: 'hello',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0x89525573e05dbc5f7f7f72e98f8145459e8b183e54c819fa7029f09a04115d89",
        "0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8",
      ],
    }
  `)
  })

  test('behavior: leading non-indexed inputs', () => {
    const transfer = AbiEvent.from(
      'event Transfer(uint256 a, string indexed b)',
    )

    expect(
      AbiEvent.encode(transfer, {
        b: 'hello',
      }),
    ).toMatchInlineSnapshot(`
    {
      "topics": [
        "0x9060fea662832699cca863409e283b48eb088414dc780c4d43afe69caefee4b5",
        "0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8",
      ],
    }
  `)
  })

  test('behavior: network', async () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 indexed value)',
    )

    const { topics } = AbiEvent.encode(transfer)

    const logs = await anvilMainnet.request({
      method: 'eth_getLogs',
      params: [
        {
          address: '0xfba3912ca04dd458c843e2ee08967fc04f3579c2',
          fromBlock: Hex.fromNumber(19760235n),
          toBlock: Hex.fromNumber(19760240n),
          topics,
        },
      ],
    })

    expect(AbiEvent.decode(transfer, logs[0]!)).toMatchInlineSnapshot(`
      {
        "from": "0x0000000000000000000000000000000000000000",
        "to": "0x0C04D9e9278EC5e4D424476D3Ebec70Cb5d648D1",
        "value": 603n,
      }
    `)
  })

  test('error: tuple input', () => {
    const transfer = AbiEvent.from(
      'event Transfer((string) indexed a, string b)',
    )

    expect(() =>
      AbiEvent.encode(transfer, {
        a: ['hello'],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `[AbiEvent.FilterTypeNotSupportedError: Filter type "tuple" is not supported.]`,
    )
  })

  test('error: array input', () => {
    const transfer = AbiEvent.from(
      'event Transfer(uint256[] indexed a, string b)',
    )

    expect(() =>
      AbiEvent.encode(transfer, {
        a: [1n],
      }),
    ).toThrowErrorMatchingInlineSnapshot(
      `[AbiEvent.FilterTypeNotSupportedError: Filter type "uint256[]" is not supported.]`,
    )
  })

  test('behavior: network', async () => {
    const transfer = AbiEvent.from(
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    )

    const { topics } = AbiEvent.encode(transfer)

    const logs = await anvilMainnet.request({
      method: 'eth_getLogs',
      params: [{ topics }],
    })

    expect(AbiEvent.decode(transfer, logs[0]!)).toMatchInlineSnapshot(`
      {
        "from": "0x634cf119d1964b88a426E1E782Bd09f37b51d949",
        "to": "0xB77c2290C5e5ACD8Ca4778876b3CAaE593741BAB",
        "value": 714357880932609n,
      }
    `)
  })

  test('https://github.com/wevm/viem/issues/3278', () => {
    const event = AbiEvent.from('event test(uint32 indexed val)')
    expect(
      AbiEvent.encode(event, {
        val: 0,
      }),
    ).toMatchInlineSnapshot(`
      {
        "topics": [
          "0xe3cff634ef3ac1857ee74821b8b4103c803384af6152771eef3a2a92bdda6db6",
          "0x0000000000000000000000000000000000000000000000000000000000000000",
        ],
      }
    `)
  })

  test('behavior: overload with abi', () => {
    const abi = Abi.from([
      'event Transfer(address indexed from, address indexed to, uint256 value)',
    ])

    // Test both overload patterns
    const abiEvent = AbiEvent.fromAbi(abi, 'Transfer')
    const result1 = AbiEvent.encode(abiEvent, {
      from: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    })
    const result2 = AbiEvent.encode(abi, 'Transfer', {
      from: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    })

    expect(result1).toEqual(result2)
    expect(result2).toMatchInlineSnapshot(`
      {
        "topics": [
          "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
          "0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266",
          "0x00000000000000000000000070997970c51812dc3a010c7d01b50e0d17dc79c8",
        ],
      }
    `)
  })

  test('behavior: overload with abi - no args', () => {
    const abi = Abi.from(['event Transfer()'])

    // Test both overload patterns
    const abiEvent = AbiEvent.fromAbi(abi, 'Transfer')
    const result1 = AbiEvent.encode(abiEvent)
    const result2 = AbiEvent.encode(abi, 'Transfer')

    expect(result1).toEqual(result2)
    expect(result2).toMatchInlineSnapshot(`
      {
        "topics": [
          "0x406dade31f7ae4b5dbc276258c28dde5ae6d5c2773c5745802c493a2360e55e0",
        ],
      }
    `)
  })

  test('behavior: overload with array args', () => {
    const abi = Abi.from([
      'event Transfer(address indexed, address indexed, uint256)',
    ])

    // Test both overload patterns with unnamed args
    const abiEvent = AbiEvent.fromAbi(abi, 'Transfer')
    const result1 = AbiEvent.encode(abiEvent, [
      '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
      '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    ])
    const result2 = AbiEvent.encode(abi, 'Transfer', [
      '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
      '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
    ])

    expect(result1).toEqual(result2)
    expect(result2).toMatchInlineSnapshot(`
      {
        "topics": [
          "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
          "0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266",
          "0x00000000000000000000000070997970c51812dc3a010c7d01b50e0d17dc79c8",
        ],
      }
    `)
  })
})

describe('format', () => {
  test('default', () => {
    const transfer = AbiEvent.from({
      type: 'event',
      name: 'Transfer',
      inputs: [
        { name: 'from', type: 'address', indexed: true },
        { name: 'to', type: 'address', indexed: true },
        { name: 'value', type: 'uint256' },
      ],
    })
    const formatted = AbiEvent.format(transfer)
    expect(formatted).toMatchInlineSnapshot(
      `"event Transfer(address indexed from, address indexed to, uint256 value)"`,
    )
  })
})

describe('from', () => {
  test('default', () => {
    {
      const abiItem = AbiEvent.from({
        type: 'event',
        name: 'Transfer',
        inputs: [
          { name: 'from', type: 'address', indexed: true },
          { name: 'to', type: 'address', indexed: true },
          { name: 'value', type: 'uint256' },
        ],
      })
      expect(abiItem).toMatchInlineSnapshot(`
      {
        "hash": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "inputs": [
          {
            "indexed": true,
            "name": "from",
            "type": "address",
          },
          {
            "indexed": true,
            "name": "to",
            "type": "address",
          },
          {
            "name": "value",
            "type": "uint256",
          },
        ],
        "name": "Transfer",
        "type": "event",
      }
    `)
    }

    {
      const abiItem = AbiEvent.from(
        'event Transfer(address indexed from, address indexed to, uint256 value)',
      )
      expect(abiItem).toMatchInlineSnapshot(`
      {
        "hash": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "inputs": [
          {
            "indexed": true,
            "name": "from",
            "type": "address",
          },
          {
            "indexed": true,
            "name": "to",
            "type": "address",
          },
          {
            "name": "value",
            "type": "uint256",
          },
        ],
        "name": "Transfer",
        "type": "event",
      }
    `)
    }
  })

  test('options: prepare', () => {
    const abiItem = AbiEvent.from(
      {
        type: 'event',
        name: 'Transfer',
        inputs: [
          { name: 'from', type: 'address', indexed: true },
          { name: 'to', type: 'address', indexed: true },
          { name: 'value', type: 'uint256' },
        ],
      },
      { prepare: false },
    )
    expect(abiItem).toMatchInlineSnapshot(`
    {
      "inputs": [
        {
          "indexed": true,
          "name": "from",
          "type": "address",
        },
        {
          "indexed": true,
          "name": "to",
          "type": "address",
        },
        {
          "name": "value",
          "type": "uint256",
        },
      ],
      "name": "Transfer",
      "type": "event",
    }
  `)
  })
})

describe('fromAbi', () => {
  test('default', () => {
    expect(AbiEvent.fromAbi(wagmiContractConfig.abi, 'Approval'))
      .toMatchInlineSnapshot(`
    {
      "anon