0ac497db6b
- It still supports no expected, which means that something was thrown - Expected value is now tested via equality in order to pass Adding toThrowError: - toThrowError() passes if an Error type was thrown - toThrowError(String) & toThrowError(RegExp) compare Expected to the Error message - toThrowError(Error constructor) compares Expected to the constructor of what was thrown - toThrowError(Error constructor, String) & toThrowError(Error constructor, RegExp) compares both the Error and the message Also, equality now handles Errors, enforcing the message as part of the equality.
98 lines
2.6 KiB
JavaScript
98 lines
2.6 KiB
JavaScript
describe("toThrow", function() {
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it("throws an error when the actual is not a function", function() {
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var matcher = j$.matchers.toThrow();
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expect(function() {
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matcher.compare({});
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}).toThrow(new Error("Actual is not a Function")); // TODO: this needs to change for self-test
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});
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it("fails if actual does not throw", function() {
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var matcher = j$.matchers.toThrow(),
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fn = function() {
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return true;
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},
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result;
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result = matcher.compare(fn);
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expect(result.pass).toBe(false);
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expect(result.message).toEqual("Expected function to throw an exception.");
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});
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it("passes if it throws but there is no expected", function() {
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var util = {
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equals: j$.createSpy('delegated-equal').andReturn(true)
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},
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matcher = j$.matchers.toThrow(util),
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fn = function() {
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throw 5;
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},
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result;
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result = matcher.compare(fn);
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expect(result.pass).toBe(true);
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expect(result.message).toEqual("Expected function not to throw.");
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});
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it("passes even if what is thrown is falsy", function() {
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var matcher = j$.matchers.toThrow(),
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fn = function() {
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throw undefined;
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},
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result;
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result = matcher.compare(fn);
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expect(result.pass).toBe(true);
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expect(result.message).toEqual("Expected function not to throw.");
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});
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it("passes if what is thrown is equivalent to what is expected", function() {
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var util = {
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equals: j$.createSpy('delegated-equal').andReturn(true)
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},
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matcher = j$.matchers.toThrow(util),
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fn = function() {
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throw 5;
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},
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result;
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result = matcher.compare(fn, 5);
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expect(result.pass).toBe(true);
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expect(result.message).toEqual("Expected function not to throw 5.");
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});
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it("fails if what is thrown is not equivalent to what is expected", function() {
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var util = {
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equals: j$.createSpy('delegated-equal').andReturn(false)
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},
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matcher = j$.matchers.toThrow(util),
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fn = function() {
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throw 5;
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},
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result;
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result = matcher.compare(fn, "foo");
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expect(result.pass).toBe(false);
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expect(result.message).toEqual("Expected function to throw 'foo'.");
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});
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it("fails if what is thrown is not equivalent to undefined", function() {
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var util = {
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equals: j$.createSpy('delegated-equal').andReturn(false)
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},
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matcher = j$.matchers.toThrow(util),
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fn = function() {
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throw 5;
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},
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result;
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result = matcher.compare(fn, void 0);
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expect(result.pass).toBe(false);
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expect(result.message).toEqual("Expected function to throw undefined.");
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});
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}); |