107 lines
3.2 KiB
JavaScript
107 lines
3.2 KiB
JavaScript
/* Copyright 2015 Realm Inc - All Rights Reserved
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* Proprietary and Confidential
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*/
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'use strict';
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module.exports = {
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assertEqual: function(val1, val2, errorMessage) {
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if (val1 !== val2) {
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var message = "'" + val1 + "' does not equal expected value '" + val2 + "'";
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if (errorMessage) {
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message = errorMessage + ' - ' + message;
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}
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throw new TestFailureError(message);
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}
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},
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assertNotEqual: function(val1, val2, errorMessage) {
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if (val1 === val2) {
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var message = "'" + val1 + "' equals '" + val2 + "'";
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if (errorMessage) {
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message = errorMessage + ' - ' + message;
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}
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throw new TestFailureError(message);
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}
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},
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assertEqualWithTolerance: function(val1, val2, tolerance, errorMessage) {
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if (val1 < val2 - tolerance || val1 > val2 + tolerance) {
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var message = "'" + val1 + "' does not equal '" + val2 + "' with tolerance '" + tolerance + "'";
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if (errorMessage) {
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message = errorMessage + ' - ' + message;
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}
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throw new TestFailureError(message);
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}
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},
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assertArraysEqual: function(val1, val2, errorMessage) {
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var len1 = val1.length;
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var len2 = val2.length;
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var message;
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if (len1 !== len2) {
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message = 'Arrays have different lengths (' + len1 + ' != ' + len2 + ')';
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if (errorMessage) {
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message = errorMessage + ' - ' + message;
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}
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throw new TestFailureError(message);
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}
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for (var i = 0; i < len1; i++) {
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if (val1[i] !== val2[i]) {
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message = 'Array contents not equal at index ' + i + ' (' + val1[i] + ' != ' + val2[i] + ')';
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if (errorMessage) {
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message = errorMessage + ' - ' + message;
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}
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throw new TestFailureError(message);
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}
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}
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},
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assertThrows: function(func, errorMessage) {
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var caught = false;
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try {
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func();
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}
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catch (e) {
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caught = true;
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}
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if (!caught) {
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throw new TestFailureError(errorMessage || 'Expected exception not thrown');
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}
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},
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assertTrue: function(condition, errorMessage) {
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if (!condition) {
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throw new TestFailureError(errorMessage || 'Condition expected to be true');
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}
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},
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};
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function TestFailureError(message) {
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var error;
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try {
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throw new Error(message);
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} catch (e) {
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error = e;
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}
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// This regular expression will match stack trace lines provided by JavaScriptCore.
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// Example: someMethod@file:///path/to/file.js:10:24
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var regex = /^(?:.*?@)?([^\[\(].+?):(\d+)(?::(\d+))?\s*$/;
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// Remove the top two stack frames and use information from the third, if possible.
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var stack = error.stack && error.stack.split('\n');
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var match = stack[2] && stack[2].match(regex);
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if (match) {
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this.sourceURL = match[1];
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this.line = +match[2];
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this.column = +match[3];
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this.stack = stack.slice(2).join('\n');
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}
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this.__proto__ = error;
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}
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