@metamask/snaps-simulation
Version:
A simulation framework for MetaMask Snaps, enabling headless testing of Snaps in a controlled environment
1 lines • 48.8 kB
Source Map (JSON)
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type { SnapInterfaceControllerState } from '@metamask/snaps-controllers';\nimport type { DialogApprovalTypes } from '@metamask/snaps-rpc-methods';\nimport { DIALOG_APPROVAL_TYPES } from '@metamask/snaps-rpc-methods';\nimport type {\n FormState,\n InterfaceContext,\n InterfaceState,\n SnapId,\n UserInputEvent,\n File,\n AccountSelectorState,\n AssetSelectorState,\n CaipAssetType,\n} from '@metamask/snaps-sdk';\nimport { DialogType, UserInputEventType, assert } from '@metamask/snaps-sdk';\nimport type {\n FooterElement,\n FormElement,\n JSXElement,\n} from '@metamask/snaps-sdk/jsx';\nimport {\n HandlerType,\n createAccountList,\n createChainIdList,\n getJsxChildren,\n unwrapError,\n walkJsx,\n} from '@metamask/snaps-utils';\nimport {\n assertExhaustive,\n hasProperty,\n parseCaipAccountId,\n} from '@metamask/utils';\nimport type { PayloadAction } from '@reduxjs/toolkit';\nimport deepEqual from 'fast-deep-equal';\nimport { type SagaIterator } from 'redux-saga';\nimport { call, put, select, take } from 'redux-saga/effects';\n\nimport { TYPEABLE_INPUTS } from './constants';\nimport type { RootControllerMessenger } from './controllers';\nimport { getFileSize, getFileToUpload } from './files';\nimport type { SimulationOptions } from './options';\nimport type { Interface, RunSagaFunction } from './store';\nimport { getCurrentInterface, resolveInterface, setInterface } from './store';\nimport type {\n FileOptions,\n SnapHandlerInterface,\n SnapInterface,\n SnapInterfaceActions,\n} from './types';\nimport { formatTypeErrorMessage } from './utils/errors';\n/**\n * The maximum file size that can be uploaded.\n */\nconst MAX_FILE_SIZE = 10_000_000; // 10 MB\n\n/**\n * The elements based on the Selector component.\n */\nconst SELECTOR_ELEMENTS = ['Selector', 'AccountSelector', 'AssetSelector'];\n\n/**\n * Get a user interface object from a type and content object.\n *\n * @param runSaga - A function to run a saga outside the usual Redux flow.\n * @param type - The type of the interface.\n * @param id - The interface ID.\n * @param content - The content to show in the interface.\n * @param interfaceActions - The actions to interact with the interface.\n * @returns The user interface object.\n */\nexport function getInterfaceResponse(\n runSaga: RunSagaFunction,\n type: DialogApprovalTypes[DialogType | 'default'] | 'Notification',\n id: string,\n content: JSXElement,\n interfaceActions: SnapInterfaceActions,\n): SnapInterface {\n switch (type) {\n case DIALOG_APPROVAL_TYPES[DialogType.Alert]:\n return {\n ...interfaceActions,\n type: DialogType.Alert,\n content,\n id,\n\n ok: resolveWith(runSaga, null),\n };\n\n case DIALOG_APPROVAL_TYPES[DialogType.Confirmation]:\n return {\n ...interfaceActions,\n type: DialogType.Confirmation,\n content,\n id,\n\n ok: resolveWith(runSaga, true),\n cancel: resolveWith(runSaga, false),\n };\n\n case DIALOG_APPROVAL_TYPES[DialogType.Prompt]:\n return {\n ...interfaceActions,\n type: DialogType.Prompt,\n content,\n id,\n\n ok: resolveWithInput(runSaga),\n cancel: resolveWith(runSaga, null),\n };\n\n case DIALOG_APPROVAL_TYPES.default: {\n const footer = getElementByType<FooterElement>(content, 'Footer');\n\n // No Footer defined so we apply a default footer.\n if (!footer) {\n return {\n ...interfaceActions,\n content,\n id,\n\n ok: resolveWith(runSaga, null),\n cancel: resolveWith(runSaga, null),\n };\n }\n\n // Only one button in footer so we apply a default cancel button.\n if (getJsxChildren(footer).length === 1) {\n return {\n ...interfaceActions,\n content,\n id,\n\n cancel: resolveWith(runSaga, null),\n };\n }\n\n // We have two buttons in the footer so we assume the snap handles the approval of the interface.\n return {\n ...interfaceActions,\n content,\n id,\n };\n }\n\n case 'Notification': {\n return {\n ...interfaceActions,\n content,\n id,\n };\n }\n\n default:\n throw new Error(`Unknown or unsupported dialog type: \"${String(type)}\".`);\n }\n}\n\n/**\n * Resolve the current user interface with the given value.\n *\n * @param value - The value to resolve the user interface with.\n * @yields Puts the resolve user interface action.\n */\nexport function* resolveWithSaga(value: unknown): SagaIterator {\n yield put(resolveInterface(value));\n}\n\n/**\n * Resolve the current user interface with the given value. This returns a\n * function that can be used to resolve the user interface.\n *\n * @param runSaga - A function to run a saga outside the usual Redux flow.\n * @param value - The value to resolve the user interface with.\n * @returns A function that can be used to resolve the user interface.\n */\nfunction resolveWith(runSaga: RunSagaFunction, value: unknown) {\n return async () => {\n await runSaga(resolveWithSaga, value).toPromise();\n };\n}\n\n/**\n * Resolve the current user interface with the provided input. 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The JSX element.\n * @param name - The element name.\n * @returns True if the element is a JSX element with the given name, otherwise\n * false.\n */\nfunction isJSXElementWithName<Element extends JSXElement, Name extends string>(\n element: Element,\n name: Name,\n): element is Element & { props: { name: Name } } {\n return hasProperty(element.props, 'name') && element.props.name === name;\n}\n\n/**\n * Find an element inside a form element in a JSX tree.\n *\n * @param form - The form element.\n * @param name - The element name.\n * @returns An object containing the element and the form name if it's contained\n * in a form, otherwise undefined.\n */\nfunction getFormElement(form: FormElement, name: string) {\n const element = walkJsx<NamedJSXElement>(form, (childElement) => {\n if (isJSXElementWithName(childElement, name)) {\n return childElement;\n }\n\n return undefined;\n });\n\n if (element === undefined) {\n return undefined;\n }\n\n return { element, form: form.props.name };\n}\n\n/**\n * Get an object containing the element, and optional form that's associated\n * with the element if any.\n *\n * @param element - The JSX element.\n * @returns An object containing the element and optional form.\n */\nfunction getElementWithOptionalForm(element: NamedJSXElement): {\n element: NamedJSXElement;\n form?: string;\n} {\n if (element.type !== 'Button' || !element.props.form) {\n return { element };\n }\n\n return { element, form: element.props.form };\n}\n\n/**\n * Get an element from a JSX tree with the given name.\n *\n * @param content - The interface content.\n * @param name - The element name.\n * @returns An object containing the element and the form name if it's contained\n * in a form, otherwise undefined.\n */\nexport function getElement(\n content: JSXElement,\n name: string,\n):\n | {\n element: NamedJSXElement;\n form?: string;\n }\n | undefined {\n if (isJSXElementWithName(content, name)) {\n return getElementWithOptionalForm(content);\n }\n\n return walkJsx(content, (element) => {\n if (element.type === 'Form') {\n return getFormElement(element, name);\n }\n\n if (isJSXElementWithName(element, name)) {\n return getElementWithOptionalForm(element);\n }\n\n return undefined;\n });\n}\n\n/**\n * Get an element from a JSX tree with the given type.\n *\n * @param content - The interface content.\n * @param type - The element type.\n * @returns The element with the given type.\n */\nexport function getElementByType<Element extends JSXElement>(\n content: JSXElement,\n type: string,\n) {\n return walkJsx(content, (element) => {\n if (element.type === type) {\n return element as Element;\n }\n\n return undefined;\n });\n}\n\n/**\n * Handle submitting event requests to OnUserInput including unwrapping potential errors.\n *\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param snapId - The Snap ID.\n * @param id - The interface ID.\n * @param event - The event to submit.\n * @param context - The interface context.\n */\nasync function handleEvent(\n controllerMessenger: RootControllerMessenger,\n snapId: SnapId,\n id: string,\n event: UserInputEvent,\n context: InterfaceContext | null,\n) {\n try {\n await controllerMessenger.call(\n 'ExecutionService:handleRpcRequest',\n snapId,\n {\n origin: 'metamask',\n handler: HandlerType.OnUserInput,\n request: {\n jsonrpc: '2.0',\n method: ' ',\n params: {\n event,\n id,\n context,\n },\n },\n },\n );\n } catch (error) {\n const [unwrapped] = unwrapError(error);\n throw unwrapped;\n }\n}\n\n/**\n * Click on an element of the Snap interface.\n *\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param id - The interface ID.\n * @param content - The interface content.\n * @param snapId - The Snap ID.\n * @param name - The element name.\n */\nexport async function clickElement(\n controllerMessenger: RootControllerMessenger,\n id: string,\n content: JSXElement,\n snapId: SnapId,\n name: string,\n): Promise<void> {\n const result = getElement(content, name);\n assert(\n result !== undefined,\n `Could not find an element in the interface with the name \"${name}\".`,\n );\n\n assert(\n result.element.type === 'Button' || result.element.type === 'Checkbox',\n `Expected an element of type \"Button\" or \"Checkbox\", but found \"${result.element.type}\".`,\n );\n\n const { state, context } = controllerMessenger.call(\n 'SnapInterfaceController:getInterface',\n snapId,\n id,\n );\n\n const { type } = result.element;\n const elementName = result.element.props.name;\n\n const formState = (result.form ? state[result.form] : state) as FormState;\n const currentValue = formState[elementName];\n\n switch (type) {\n case 'Button': {\n // Button click events are always triggered.\n await handleEvent(\n controllerMessenger,\n snapId,\n id,\n {\n type: UserInputEventType.ButtonClickEvent,\n name: elementName,\n },\n context,\n );\n\n if (result.form && result.element.props.type === 'submit') {\n await handleEvent(\n controllerMessenger,\n snapId,\n id,\n {\n type: UserInputEventType.FormSubmitEvent,\n name: result.form,\n value: state[result.form] as FormState,\n },\n context,\n );\n }\n break;\n }\n\n case 'Checkbox': {\n const newValue = !currentValue;\n const newState = mergeValue(state, name, newValue, result.form);\n\n controllerMessenger.call(\n 'SnapInterfaceController:updateInterfaceState',\n id,\n newState,\n );\n\n await handleEvent(\n controllerMessenger,\n snapId,\n id,\n {\n type: UserInputEventType.InputChangeEvent,\n name: elementName,\n value: newValue,\n },\n context,\n );\n break;\n }\n\n /* istanbul ignore next */\n default:\n assertExhaustive(type);\n }\n}\n\n/**\n * Merge a value in the interface state.\n *\n * @param state - The actual interface state.\n * @param name - The component name that changed value.\n * @param value - The new value.\n * @param form - The form name if the element is in one.\n * @returns The state with the merged value.\n */\nexport function mergeValue(\n state: InterfaceState,\n name: string,\n value:\n | string\n | File\n | boolean\n | AccountSelectorState\n | AssetSelectorState\n | null,\n form?: string,\n): InterfaceState {\n if (form) {\n return {\n ...state,\n [form]: {\n ...(state[form] as FormState),\n [name]: value,\n },\n };\n }\n\n return { ...state, [name]: value };\n}\n\n/**\n * Process the input value for an input element based on the element type.\n *\n * @param value - The original input value.\n * @param element - The interface element.\n * @returns The processed value.\n */\nfunction processInputValue(value: string, element: NamedJSXElement): string {\n if (element.type === 'AddressInput') {\n const { chainId } = element.props;\n return `${chainId}:${value}`;\n }\n\n return value;\n}\n\n/**\n * Type a value in an interface element.\n *\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param id - The interface ID.\n * @param content - The interface Components.\n * @param snapId - The Snap ID.\n * @param name - The element name.\n * @param value - The value to type in the element.\n */\nexport async function typeInField(\n controllerMessenger: RootControllerMessenger,\n id: string,\n content: JSXElement,\n snapId: SnapId,\n name: string,\n value: string,\n) {\n const result = getElement(content, name);\n\n assert(\n result !== undefined,\n `Could not find an element in the interface with the name \"${name}\".`,\n );\n\n assert(\n TYPEABLE_INPUTS.includes(result.element.type),\n `Expected an element of type ${formatTypeErrorMessage(TYPEABLE_INPUTS)}, but found \"${result.element.type}\".`,\n );\n\n const newValue = processInputValue(value, result.element);\n\n const { state, context } = controllerMessenger.call(\n 'SnapInterfaceController:getInterface',\n snapId,\n id,\n );\n\n const newState = mergeValue(state, name, newValue, result.form);\n\n controllerMessenger.call(\n 'SnapInterfaceController:updateInterfaceState',\n id,\n newState,\n );\n\n await controllerMessenger.call('ExecutionService:handleRpcRequest', snapId, {\n origin: 'metamask',\n handler: HandlerType.OnUserInput,\n request: {\n jsonrpc: '2.0',\n method: ' ',\n params: {\n event: {\n type: UserInputEventType.InputChangeEvent,\n name: result.element.props.name,\n value: newValue,\n },\n id,\n context,\n },\n },\n });\n}\n\n/**\n * Type a value in an interface element.\n *\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param id - The interface ID.\n * @param content - The interface Components.\n * @param snapId - The Snap ID.\n * @param name - The element name.\n * @param value - The value to type in the element.\n */\nexport async function selectInDropdown(\n controllerMessenger: RootControllerMessenger,\n id: string,\n content: JSXElement,\n snapId: SnapId,\n name: string,\n value: string,\n) {\n const result = getElement(content, name);\n\n assert(\n result !== undefined,\n `Could not find an element in the interface with the name \"${name}\".`,\n );\n\n assert(\n result.element.type === 'Dropdown',\n `Expected an element of type \"Dropdown\", but found \"${result.element.type}\".`,\n );\n\n const options = getJsxChildren(result.element) as JSXElement[];\n const selectedOption = options.find(\n (option) =>\n hasProperty(option.props, 'value') && option.props.value === value,\n );\n\n assert(\n selectedOption !== undefined,\n `The dropdown with the name \"${name}\" does not contain \"${value}\".`,\n );\n\n const { state, context } = controllerMessenger.call(\n 'SnapInterfaceController:getInterface',\n snapId,\n id,\n );\n\n const newState = mergeValue(state, name, value, result.form);\n\n controllerMessenger.call(\n 'SnapInterfaceController:updateInterfaceState',\n id,\n newState,\n );\n\n await controllerMessenger.call('ExecutionService:handleRpcRequest', snapId, {\n origin: 'metamask',\n handler: HandlerType.OnUserInput,\n request: {\n jsonrpc: '2.0',\n method: ' ',\n params: {\n event: {\n type: UserInputEventType.InputChangeEvent,\n name: result.element.props.name,\n value,\n },\n id,\n context,\n },\n },\n });\n}\n\n/**\n * Choose an option with value from radio group interface element.\n *\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param id - The interface ID.\n * @param content - The interface Components.\n * @param snapId - The Snap ID.\n * @param name - The element name.\n * @param value - The value to type in the element.\n */\nexport async function selectFromRadioGroup(\n controllerMessenger: RootControllerMessenger,\n id: string,\n content: JSXElement,\n snapId: SnapId,\n name: string,\n value: string,\n) {\n const result = getElement(content, name);\n\n assert(\n result !== undefined,\n `Could not find an element in the interface with the name \"${name}\".`,\n );\n\n assert(\n result.element.type === 'RadioGroup',\n `Expected an element of type \"RadioGroup\", but found \"${result.element.type}\".`,\n );\n\n const options = getJsxChildren(result.element) as JSXElement[];\n const selectedOption = options.find(\n (option) =>\n hasProperty(option.props, 'value') && option.props.value === value,\n );\n\n assert(\n selectedOption !== undefined,\n `The RadioGroup with the name \"${name}\" does not contain \"${value}\".`,\n );\n\n const { state, context } = controllerMessenger.call(\n 'SnapInterfaceController:getInterface',\n snapId,\n id,\n );\n\n const newState = mergeValue(state, name, value, result.form);\n\n controllerMessenger.call(\n 'SnapInterfaceController:updateInterfaceState',\n id,\n newState,\n );\n\n await controllerMessenger.call('ExecutionService:handleRpcRequest', snapId, {\n origin: 'metamask',\n handler: HandlerType.OnUserInput,\n request: {\n jsonrpc: '2.0',\n method: ' ',\n params: {\n event: {\n type: UserInputEventType.InputChangeEvent,\n name: result.element.props.name,\n value,\n },\n id,\n context,\n },\n },\n });\n}\n\n/**\n * Get the value from a Selector interface element.\n *\n * @param element - The Selector element to get the value from.\n * @param options - The simulation options.\n * @param value - The value to get from the Selector.\n *\n * @returns The value from the Selector element.\n */\nexport function getValueFromSelector(\n element: NamedJSXElement,\n options: SimulationOptions,\n value: string,\n) {\n switch (element.type) {\n case 'Selector': {\n const selectorOptions = getJsxChildren(element) as JSXElement[];\n const selectedOption = selectorOptions.find(\n (option) =>\n hasProperty(option.props, 'value') && option.props.value === value,\n );\n\n assert(\n selectedOption !== undefined,\n `The Selector with the name \"${element.props.name}\" does not contain \"${value}\".`,\n );\n\n return value;\n }\n\n case 'AccountSelector': {\n const { accounts } = options;\n\n const selectedAccount = accounts.find((account) => account.id === value);\n\n assert(\n selectedAccount !== undefined,\n `The AccountSelector with the name \"${element.props.name}\" does not contain an account with ID \"${value}\".`,\n );\n\n return {\n accountId: selectedAccount.id,\n addresses: createAccountList(\n selectedAccount.address,\n createChainIdList(selectedAccount.scopes, element.props.chainIds),\n ),\n };\n }\n\n case 'AssetSelector': {\n const { assets, accounts } = options;\n\n const selectedAsset = assets[value as CaipAssetType];\n\n const { address } = parseCaipAccountId(element.props.addresses[0]);\n\n const account = accounts.find(\n (simulationAccount) => simulationAccount.address === address,\n );\n\n const accountHasAsset = account?.assets?.some((asset) => asset === value);\n\n assert(\n selectedAsset !== undefined && accountHasAsset,\n `The AssetSelector with the name \"${element.props.name}\" does not contain an asset with ID \"${value}\".`,\n );\n\n return {\n asset: value as CaipAssetType,\n name: selectedAsset.name,\n symbol: selectedAsset.symbol,\n };\n }\n\n default:\n throw new Error(\n `Expected an element of type ${formatTypeErrorMessage(SELECTOR_ELEMENTS)}, but found \"${element.type}\".`,\n );\n }\n}\n\n/**\n * Choose an option with value from a Selector interface element.\n *\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param options - The simulation options.\n * @param id - The interface ID.\n * @param content - The interface Components.\n * @param snapId - The Snap ID.\n * @param name - The element name.\n * @param value - The value to type in the element.\n */\nexport async function selectFromSelector(\n controllerMessenger: RootControllerMessenger,\n options: SimulationOptions,\n id: string,\n content: JSXElement,\n snapId: SnapId,\n name: string,\n value: string,\n) {\n const result = getElement(content, name);\n\n assert(\n result !== undefined,\n `Could not find an element in the interface with the name \"${name}\".`,\n );\n\n const selectedValue = getValueFromSelector(result.element, options, value);\n\n const { state, context } = controllerMessenger.call(\n 'SnapInterfaceController:getInterface',\n snapId,\n id,\n );\n\n const newState = mergeValue(state, name, selectedValue, result.form);\n\n controllerMessenger.call(\n 'SnapInterfaceController:updateInterfaceState',\n id,\n newState,\n );\n\n await controllerMessenger.call('ExecutionService:handleRpcRequest', snapId, {\n origin: 'metamask',\n handler: HandlerType.OnUserInput,\n request: {\n jsonrpc: '2.0',\n method: ' ',\n params: {\n event: {\n type: UserInputEventType.InputChangeEvent,\n name: result.element.props.name,\n value: selectedValue,\n },\n id,\n context,\n },\n },\n });\n}\n\n/**\n * Wait for an interface to be updated.\n *\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param options - The simulation options.\n * @param snapId - The Snap ID.\n * @param id - The interface ID.\n * @param originalContent - The original interface content.\n * @returns A promise that resolves to the updated interface.\n */\nexport async function waitForUpdate(\n controllerMessenger: RootControllerMessenger,\n options: SimulationOptions,\n snapId: SnapId,\n id: string,\n originalContent: JSXElement,\n) {\n return new Promise<SnapHandlerInterface>((resolve) => {\n const listener = (state: SnapInterfaceControllerState) => {\n const currentInterface = state.interfaces[id];\n const newContent = currentInterface?.content;\n\n if (!deepEqual(originalContent, newContent)) {\n controllerMessenger.unsubscribe(\n 'SnapInterfaceController:stateChange',\n listener,\n );\n\n const actions = getInterfaceActions(\n snapId,\n controllerMessenger,\n options,\n {\n content: newContent,\n id,\n },\n );\n\n resolve({ ...actions, content: newContent });\n }\n };\n\n controllerMessenger.subscribe(\n 'SnapInterfaceController:stateChange',\n listener,\n );\n });\n}\n\n/**\n * Get a formatted file size.\n *\n * @param size - The file size in bytes.\n * @returns The formatted file size in MB, with two decimal places.\n * @example\n * getFormattedFileSize(1_000_000); // '1.00 MB'\n */\nfunction getFormattedFileSize(size: number) {\n return `${(size / 1_000_000).toFixed(2)} MB`;\n}\n\n/**\n * Upload a file to an interface element.\n *\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param id - The interface ID.\n * @param content - The interface Components.\n * @param snapId - The Snap ID.\n * @param name - The element name.\n * @param file - The file to upload. This can be a path to a file or a\n * `Uint8Array` containing the file contents. If this is a path, the file is\n * resolved relative to the current working directory.\n * @param options - The file options.\n * @param options.fileName - The name of the file. By default, this is\n * inferred from the file path if it's a path, and defaults to an empty string\n * if it's a `Uint8Array`.\n * @param options.contentType - The content type of the file. By default, this\n * is inferred from the file name if it's a path, and defaults to\n * `application/octet-stream` if it's a `Uint8Array` or the content type\n * cannot be inferred from the file name.\n */\nexport async function uploadFile(\n controllerMessenger: RootControllerMessenger,\n id: string,\n content: JSXElement,\n snapId: SnapId,\n name: string,\n file: string | Uint8Array,\n options?: FileOptions,\n) {\n const result = getElement(content, name);\n\n assert(\n result !== undefined,\n `Could not find an element in the interface with the name \"${name}\".`,\n );\n\n assert(\n result.element.type === 'FileInput',\n `Expected an element of type \"FileInput\", but found \"${result.element.type}\".`,\n );\n\n const { state, context } = controllerMessenger.call(\n 'SnapInterfaceController:getInterface',\n snapId,\n id,\n );\n\n const fileSize = await getFileSize(file);\n if (fileSize > MAX_FILE_SIZE) {\n throw new Error(\n `The file size (${getFormattedFileSize(\n fileSize,\n )}) exceeds the maximum allowed size of ${getFormattedFileSize(\n MAX_FILE_SIZE,\n )}.`,\n );\n }\n\n const fileObject = await getFileToUpload(file, options);\n const newState = mergeValue(state, name, fileObject, result.form);\n\n controllerMessenger.call(\n 'SnapInterfaceController:updateInterfaceState',\n id,\n newState,\n );\n\n await controllerMessenger.call('ExecutionService:handleRpcRequest', snapId, {\n origin: 'metamask',\n handler: HandlerType.OnUserInput,\n request: {\n jsonrpc: '2.0',\n method: ' ',\n params: {\n event: {\n type: UserInputEventType.FileUploadEvent,\n name: result.element.props.name,\n file: fileObject,\n },\n id,\n context,\n },\n },\n });\n}\n\n/**\n * Get the user interface actions for a Snap interface. These actions can be\n * used to interact with the interface.\n *\n * @param snapId - The Snap ID.\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param simulationOptions - The simulation options.\n * @param interface - The interface object.\n * @param interface.content - The interface content.\n * @param interface.id - The interface ID.\n * @returns The user interface actions.\n */\nexport function getInterfaceActions(\n snapId: SnapId,\n controllerMessenger: RootControllerMessenger,\n simulationOptions: SimulationOptions,\n { content, id }: Omit<Interface, 'type'> & { content: JSXElement },\n): SnapInterfaceActions {\n return {\n clickElement: async (name: string) => {\n await clickElement(controllerMessenger, id, content, snapId, name);\n },\n\n typeInField: async (name: string, value: string) => {\n await typeInField(controllerMessenger, id, content, snapId, name, value);\n },\n\n selectInDropdown: async (name: string, value: string) => {\n await selectInDropdown(\n controllerMessenger,\n id,\n content,\n snapId,\n name,\n value,\n );\n },\n\n selectFromRadioGroup: async (name: string, value: string) => {\n await selectFromRadioGroup(\n controllerMessenger,\n id,\n content,\n snapId,\n name,\n value,\n );\n },\n\n selectFromSelector: async (name: string, value: string) => {\n await selectFromSelector(\n controllerMessenger,\n simulationOptions,\n id,\n content,\n snapId,\n name,\n value,\n );\n },\n\n uploadFile: async (\n name: string,\n file: string | Uint8Array,\n options?: FileOptions,\n ) => {\n await uploadFile(\n controllerMessenger,\n id,\n content,\n snapId,\n name,\n file,\n options,\n );\n },\n\n waitForUpdate: async () =>\n waitForUpdate(\n controllerMessenger,\n simulationOptions,\n snapId,\n id,\n content,\n ),\n };\n}\n\n/**\n * Get a user interface object from a Snap.\n *\n * @param runSaga - A function to run a saga outside the usual Redux flow.\n * @param snapId - The Snap ID.\n * @param controllerMessenger - The controller messenger used to call actions.\n * @param options - The simulation options.\n * @yields Takes the set interface action.\n * @returns The user interface object.\n */\nexport function* getInterface(\n runSaga: RunSagaFunction,\n snapId: SnapId,\n controllerMessenger: RootControllerMessenger,\n options: SimulationOptions,\n): SagaIterator {\n const storedInterface = yield call(\n getStoredInterface,\n controllerMessenger,\n snapId,\n );\n\n const interfaceActions = getInterfaceActions(\n snapId,\n controllerMessenger,\n options,\n storedInterface,\n );\n\n return getInterfaceResponse(\n runSaga,\n storedInterface.type,\n storedInterface.id,\n storedInterface.content,\n interfaceActions,\n );\n}\n"]}