58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
getJasmineRequireObj().toThrow = function(j$) {
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var getErrorMsg = j$.formatErrorMsg('<toThrow>', 'expect(function() {<expectation>}).toThrow()');
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/**
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* {@link expect} a function to `throw` something.
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* @function
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* @name matchers#toThrow
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* @param {Object} [expected] - Value that should be thrown. If not provided, simply the fact that something was thrown will be checked.
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* @example
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* expect(function() { return 'things'; }).toThrow('foo');
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* expect(function() { return 'stuff'; }).toThrow();
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*/
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function toThrow(util) {
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return {
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compare: function(actual, expected) {
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var result = { pass: false },
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threw = false,
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thrown;
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if (typeof actual != 'function') {
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throw new Error(getErrorMsg('Actual is not a Function'));
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}
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try {
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actual();
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} catch (e) {
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threw = true;
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thrown = e;
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}
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if (!threw) {
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result.message = 'Expected function to throw an exception.';
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return result;
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}
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if (arguments.length == 1) {
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result.pass = true;
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result.message = function() { return 'Expected function not to throw, but it threw ' + j$.pp(thrown) + '.'; };
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return result;
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}
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if (util.equals(thrown, expected)) {
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result.pass = true;
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result.message = function() { return 'Expected function not to throw ' + j$.pp(expected) + '.'; };
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} else {
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result.message = function() { return 'Expected function to throw ' + j$.pp(expected) + ', but it threw ' + j$.pp(thrown) + '.'; };
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}
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return result;
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}
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};
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}
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return toThrow;
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};
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