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https://github.com/RGBCube/serenity
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e875513ff7
This fixes an issue where `undefined.foo = "bar"` would throw a ReferenceError instead of a TypeError as undefined was also used for truly unresolvable references (e.g. `foo() = "bar"`). I also made the various error messages here a bit nicer, just "primitive value" is not very helpful.
29 lines
969 B
JavaScript
29 lines
969 B
JavaScript
"use strict";
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test("basic functionality", () => {
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[true, false, "foo", 123].forEach(primitive => {
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expect(() => {
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primitive.foo = "bar";
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}).toThrowWithMessage(
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TypeError,
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`Cannot set property 'foo' of ${typeof primitive} '${primitive}'`
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);
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expect(() => {
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primitive[Symbol.hasInstance] = 123;
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}).toThrowWithMessage(
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TypeError,
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`Cannot set property 'Symbol(Symbol.hasInstance)' of ${typeof primitive} '${primitive}'`
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);
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});
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[null, undefined].forEach(primitive => {
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expect(() => {
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primitive.foo = "bar";
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}).toThrowWithMessage(TypeError, `Cannot set property 'foo' of ${primitive}`);
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expect(() => {
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primitive[Symbol.hasInstance] = 123;
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}).toThrowWithMessage(
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TypeError,
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`Cannot set property 'Symbol(Symbol.hasInstance)' of ${primitive}`
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);
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});
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});
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