@planet-a/affinity-node
Version:
API wrapper for the affinity.co API
59 lines (58 loc) • 2.14 kB
JavaScript
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
import { buildMessage } from "../../internal/1.0.12/build_message.js";
import { diff } from "../../internal/1.0.12/diff.js";
import { diffStr } from "../../internal/1.0.12/diff_str.js";
import { format } from "../../internal/1.0.12/format.js";
import { red } from "../../internal/1.0.12/styles.js";
import { AssertionError } from "./assertion_error.js";
/**
* Make an assertion that `actual` and `expected` are strictly equal, using
* {@linkcode Object.is} for equality comparison. If not, then throw.
*
* @example Usage
* ```ts ignore
* import { assertStrictEquals } from "@std/assert";
*
* const a = {};
* const b = a;
* assertStrictEquals(a, b); // Doesn't throw
*
* const c = {};
* const d = {};
* assertStrictEquals(c, d); // Throws
* ```
*
* @typeParam T The type of the expected value.
* @param actual The actual value to compare.
* @param expected The expected value to compare.
* @param msg The optional message to display if the assertion fails.
*/
export function assertStrictEquals(actual, expected, msg) {
if (Object.is(actual, expected)) {
return;
}
const msgSuffix = msg ? `: ${msg}` : ".";
let message;
const actualString = format(actual);
const expectedString = format(expected);
if (actualString === expectedString) {
const withOffset = actualString
.split("\n")
.map((l) => ` ${l}`)
.join("\n");
message =
`Values have the same structure but are not reference-equal${msgSuffix}\n\n${red(withOffset)}\n`;
}
else {
const stringDiff = (typeof actual === "string") &&
(typeof expected === "string");
const diffResult = stringDiff
? diffStr(actual, expected)
: diff(actualString.split("\n"), expectedString.split("\n"));
const diffMsg = buildMessage(diffResult, { stringDiff }, arguments[3])
.join("\n");
message = `Values are not strictly equal${msgSuffix}\n${diffMsg}`;
}
throw new AssertionError(message);
}