bitwarden-estensione-browser/libs/common/spec/matchers/toEqualBuffer.ts

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/**
* The inbuilt toEqual() matcher will always return TRUE when provided with 2 ArrayBuffers.
* This is because an ArrayBuffer must be wrapped in a new Uint8Array to be accessible.
* This custom matcher will automatically instantiate a new Uint8Array on the recieved value
* (and optionally, the expected value) and then call toEqual() on the resulting Uint8Arrays.
*/
export const toEqualBuffer: jest.CustomMatcher = function (
received: ArrayBuffer,
expected: Uint8Array | ArrayBuffer
) {
received = new Uint8Array(received);
if (expected instanceof ArrayBuffer) {
expected = new Uint8Array(expected);
}
if (this.equals(received, expected)) {
return {
message: () => `expected
${received}
not to match
${expected}`,
pass: true,
};
}
return {
message: () => `expected
${received}
to match
${expected}`,
pass: false,
};
};