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