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toBeCloseTo treats Infinity and -Infinity as close to themselves

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* Fixes #1957
This commit is contained in:
Steve Gravrock
2022-04-09 11:12:55 -07:00
parent 52b1a3a7f8
commit fb639d0f55
3 changed files with 54 additions and 0 deletions
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38
spec/core/matchers/toBeCloseToSpec.js
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@@ -110,4 +110,42 @@ describe('toBeCloseTo', function() {
result = matcher.compare(-2.82665525779431, -2.82666, 5);
expect(result.pass).toBe(true);
});
describe('Infinity handling', function() {
it('passes when the actual and expected are both Infinity', function() {
const matcher = jasmineUnderTest.matchers.toBeCloseTo();
const result = matcher.compare(Infinity, Infinity, 0);
expect(result.pass).toBe(true);
});
it('passes when the actual and expected are both -Infinity', function() {
const matcher = jasmineUnderTest.matchers.toBeCloseTo();
const result = matcher.compare(-Infinity, -Infinity, 0);
expect(result.pass).toBe(true);
});
it('fails when the actual is Infinity and the expected is -Infinity', function() {
const matcher = jasmineUnderTest.matchers.toBeCloseTo();
const result = matcher.compare(Infinity, -Infinity, 0);
expect(result.pass).toBe(false);
});
it('fails when the actual is -Infinity and the expected is Infinity', function() {
const matcher = jasmineUnderTest.matchers.toBeCloseTo();
const result = matcher.compare(-Infinity, Infinity, 0);
expect(result.pass).toBe(false);
});
it('fails when the actual is a number and the expected is Infinity', function() {
const matcher = jasmineUnderTest.matchers.toBeCloseTo();
const result = matcher.compare(42, Infinity, 0);
expect(result.pass).toBe(false);
});
it('fails when the actual is a number and the expected is -Infinity', function() {
const matcher = jasmineUnderTest.matchers.toBeCloseTo();
const result = matcher.compare(42, -Infinity, 0);
expect(result.pass).toBe(false);
});
});
});