316 lines
10 KiB
JavaScript
316 lines
10 KiB
JavaScript
describe("toThrowError", function() {
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it("throws an error when the actual is not a function", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError();
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expect(function() {
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matcher.compare({});
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}).toThrowError(/Actual is not a Function/);
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});
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it("throws an error when the expected is not an Error, string, or RegExp", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error("foo");
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};
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expect(function() {
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matcher.compare(fn, 1);
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}).toThrowError(/Expected is not an Error, string, or RegExp./);
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});
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it("throws an error when the expected error type is not an Error", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error("foo");
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};
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expect(function() {
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matcher.compare(fn, void 0, "foo");
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}).toThrowError(/Expected error type is not an Error./);
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});
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it("throws an error when the expected error message is not a string or RegExp", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error("foo");
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};
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expect(function() {
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matcher.compare(fn, Error, 1);
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}).toThrowError(/Expected error message is not a string or RegExp./);
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});
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it("fails if actual does not throw at all", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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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 Error.");
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});
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it("fails if thrown is not an instanceof Error", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw 4;
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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 Error, but it threw 4.");
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});
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describe("when error is from another frame", function() {
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function isNotRunningInBrowser() {
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return typeof document === 'undefined'
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}
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var iframe = null;
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afterEach(function() {
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if (iframe !== null) {
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document.body.removeChild(iframe);
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}
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});
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it("passes if thrown is an instanceof Error regardless of global that contains its constructor", function() {
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if (isNotRunningInBrowser() || jasmine.getEnv().phantomVersion < 2 || jasmine.getEnv().ieVersion < 10) {
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return;
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}
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var matcher = jasmineUnderTest.matchers.toThrowError();
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iframe = document.body.appendChild(document.createElement("iframe"));
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iframe.src = "about:blank";
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var iframeDocument = iframe.contentWindow.document;
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if (iframeDocument.body) {
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iframeDocument.body.appendChild(iframeDocument.createElement("script"))
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.textContent = "function method() { throw new Error('foo'); }";
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} else {
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// older IE
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iframeDocument.write("<html><head><script>function method() { throw new Error('foo'); }</script></head></html>");
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}
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var result = matcher.compare(iframe.contentWindow.method);
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expect(result.pass).toBe(true);
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expect(result.message).toEqual("Expected function not to throw an Error, but it threw Error.");
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});
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});
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it("fails with the correct message if thrown is a falsy value", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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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(false);
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expect(result.message()).toEqual("Expected function to throw an Error, but it threw undefined.");
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});
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it("passes if thrown is a type of Error, but there is no expected error", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new TypeError();
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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 an Error, but it threw TypeError.");
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});
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it("passes if thrown is an Error and the expected is the same message", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error("foo");
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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(true);
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expect(result.message()).toEqual("Expected function not to throw an exception with message 'foo'.");
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});
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it("fails if thrown is an Error and the expected is not the same message", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error("foo");
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},
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result;
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result = matcher.compare(fn, "bar");
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expect(result.pass).toBe(false);
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expect(result.message()).toEqual("Expected function to throw an exception with message 'bar', but it threw an exception with message 'foo'.");
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});
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it("passes if thrown is an Error and the expected is a RegExp that matches the message", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error("a long message");
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},
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result;
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result = matcher.compare(fn, /long/);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw an exception with a message matching /long/.");
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});
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it("fails if thrown is an Error and the expected is a RegExp that does not match the message", function() {
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var matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error("a long message");
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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 an exception with a message matching /foo/, but it threw an exception with message 'a long message'.");
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});
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it("passes if thrown is an Error and the expected the same Error", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true)
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},
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matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error();
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},
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result;
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result = matcher.compare(fn, Error);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw Error.");
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});
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it("passes if thrown is a custom error that takes arguments and the expected is the same error", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true)
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},
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matcher = jasmineUnderTest.matchers.toThrowError(),
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CustomError = function CustomError(arg) { arg.x },
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fn = function() {
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throw new CustomError({ x: 1 });
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},
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result;
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CustomError.prototype = new Error();
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result = matcher.compare(fn, CustomError);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw CustomError.");
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});
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it("fails if thrown is an Error and the expected is a different Error", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(false)
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},
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matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new Error();
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},
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result;
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result = matcher.compare(fn, TypeError);
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expect(result.pass).toBe(false);
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expect(result.message()).toEqual("Expected function to throw TypeError, but it threw Error.");
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});
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it("passes if thrown is a type of Error and it is equal to the expected Error and message", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true)
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},
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matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new TypeError("foo");
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},
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result;
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result = matcher.compare(fn, TypeError, "foo");
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw TypeError with message 'foo'.");
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});
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it("passes if thrown is a custom error that takes arguments and it is equal to the expected custom error and message", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true)
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},
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matcher = jasmineUnderTest.matchers.toThrowError(),
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CustomError = function CustomError(arg) { this.message = arg.message },
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fn = function() {
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throw new CustomError({message: "foo"});
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},
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result;
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CustomError.prototype = new Error();
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result = matcher.compare(fn, CustomError, "foo");
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw CustomError with message 'foo'.");
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});
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it("fails if thrown is a type of Error and the expected is a different Error", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(false)
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},
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matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new TypeError("foo");
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},
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result;
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result = matcher.compare(fn, TypeError, "bar");
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expect(result.pass).toBe(false);
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expect(result.message()).toEqual("Expected function to throw TypeError with message 'bar', but it threw TypeError with message 'foo'.");
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});
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it("passes if thrown is a type of Error and has the same type as the expected Error and the message matches the expected message", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true)
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},
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matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new TypeError("foo");
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},
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result;
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result = matcher.compare(fn, TypeError, /foo/);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw TypeError with a message matching /foo/.");
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});
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it("fails if thrown is a type of Error and the expected is a different Error", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(false)
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},
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matcher = jasmineUnderTest.matchers.toThrowError(),
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fn = function() {
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throw new TypeError("foo");
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},
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result;
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result = matcher.compare(fn, TypeError, /bar/);
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expect(result.pass).toBe(false);
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expect(result.message()).toEqual("Expected function to throw TypeError with a message matching /bar/, but it threw TypeError with message 'foo'.");
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});
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});
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