39d7ebf28e
Helps reduce how nested custom matchers have to be for users as well as Jasmine internal matchers [#59161378]
37 lines
1.0 KiB
JavaScript
37 lines
1.0 KiB
JavaScript
describe("toBeNaN", function() {
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it("passes for NaN with a custom .not fail", function() {
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var matcherComparator = j$.matchers.toBeNaN(),
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result;
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result = matcherComparator(Number.NaN);
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expect(result.pass).toBe(true);
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expect(result.message).toEqual("Expected actual not to be NaN.");
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});
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it("fails for anything not a NaN", function() {
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var matcherComparator = j$.matchers.toBeNaN();
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result = matcherComparator(1);
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expect(result.pass).toBe(false);
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result = matcherComparator(null);
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expect(result.pass).toBe(false);
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result = matcherComparator(void 0);
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expect(result.pass).toBe(false);
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result = matcherComparator('');
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expect(result.pass).toBe(false);
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result = matcherComparator(Number.POSITIVE_INFINITY);
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expect(result.pass).toBe(false);
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});
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it("has a custom message on failure", function() {
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var matcherComparator = j$.matchers.toBeNaN(),
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result = matcherComparator(0);
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expect(result.message).toEqual("Expected 0 to be NaN.");
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});
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});
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