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191
tests/generators/unittest_javascript.js
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191
tests/generators/unittest_javascript.js
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/**
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* Visual Blocks Language
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*
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* Copyright 2012 Google Inc.
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* http://blockly.googlecode.com/
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Generating JavaScript for unit test blocks.
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* @author fraser@google.com (Neil Fraser)
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*/
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'use strict';
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Blockly.JavaScript['unittest_main'] = function(block) {
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// Container for unit tests.
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var resultsVar = Blockly.JavaScript.variableDB_.getName('unittestResults',
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Blockly.Variables.NAME_TYPE);
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if (!Blockly.JavaScript.definitions_['unittest_report']) {
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var functionName = Blockly.JavaScript.variableDB_.getDistinctName(
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'testReport', Blockly.Generator.NAME_TYPE);
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Blockly.JavaScript['unittest_main'].report = functionName;
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var func = [];
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func.push('function ' + functionName + '() {');
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func.push(' // Create test report.');
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func.push(' var report = [];');
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func.push(' var summary = [];');
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func.push(' var fails = 0;');
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func.push(' for (var x = 0; x < ' + resultsVar + '.length; x++) {');
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func.push(' if (' + resultsVar + '[x][0]) {');
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func.push(' summary.push(".");');
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func.push(' } else {');
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func.push(' summary.push("F");');
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func.push(' fails++;');
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func.push(' report.push("");');
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func.push(' report.push("FAIL: " + ' + resultsVar + '[x][2]);');
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func.push(' report.push(' + resultsVar + '[x][1]);');
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func.push(' }');
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func.push(' }');
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func.push(' report.unshift(summary.join(""));');
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func.push(' report.push("");');
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func.push(' report.push("Number of tests run: " + ' + resultsVar +
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'.length);');
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func.push(' report.push("");');
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func.push(' if (fails) {');
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func.push(' report.push("FAILED (failures=" + fails + ")");');
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func.push(' } else {');
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func.push(' report.push("OK");');
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func.push(' }');
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func.push(' return report.join("\\n");');
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func.push('}');
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func.push('');
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Blockly.JavaScript.definitions_['unittest_report'] = func.join('\n');
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}
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// Setup global to hold test results.
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var code = resultsVar + ' = [];\n';
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// Run tests (unindented).
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code += Blockly.JavaScript.statementToCode(block, 'DO')
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.replace(/^ /, '').replace(/\n /g, '\n');
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var reportVar = Blockly.JavaScript.variableDB_.getDistinctName(
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'report', Blockly.Variables.NAME_TYPE);
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code += 'var ' + reportVar + ' = ' +
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Blockly.JavaScript['unittest_main'].report + '();\n';
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// Destroy results.
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code += resultsVar + ' = null;\n';
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// Send the report to the console (that's where errors will go anyway).
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code += 'console.log(' + reportVar + ');\n';
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return code;
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};
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// Code by Tomáš Zato on Stack Overflow [overflow.com/questions/7837456]
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// with minor changes for style.
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Array.prototype.equals = function(array) {
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// Is it an array?
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if (!array || !(array instanceof Array)) {
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return false;
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}
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// Are they the same length?
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if (this.length != array.length) {
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return false;
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}
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for (var i = 0; i < this.length; i++) {
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// Check for nested arrays.
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if (this[i] instanceof Array && array[i] instanceof Array) {
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// Recurse into the nested arrays.
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if (!this[i].equals(array[i])) {
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return false;
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}
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}
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else if (this[i] !== array[i]) {
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return false;
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}
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}
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return true;
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};
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Blockly.JavaScript['unittest_main'].defineAssert_ = function(block) {
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if (!Blockly.JavaScript.definitions_['unittest_assertequals']) {
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var resultsVar = Blockly.JavaScript.variableDB_.getName('unittestResults',
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Blockly.Variables.NAME_TYPE);
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var functionName = Blockly.JavaScript.variableDB_.getDistinctName(
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'assertEquals', Blockly.Generator.NAME_TYPE);
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Blockly.JavaScript['unittest_main'].assert_ = functionName;
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var func = [];
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func.push('function ' + functionName + '(actual, expected, message) {');
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func.push(' // Asserts that a value equals another value.');
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func.push(' if (!' + resultsVar + ') {');
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func.push(' throw "Orphaned assert: " + message;');
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func.push(' }');
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func.push(' if ((expected instanceof Array &&');
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func.push(' expected.equals(actual)) ||');
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func.push(' actual === expected) {');
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func.push(' ' + resultsVar + '.push([true, "OK", message]);');
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func.push(' } else {');
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func.push(' ' + resultsVar + '.push([false, ' +
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'"Expected: " + expected + "\\nActual: " + actual, message]);');
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func.push(' }');
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func.push('}');
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func.push('');
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Blockly.JavaScript.definitions_['unittest_assertequals'] = func.join('\n');
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}
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return Blockly.JavaScript['unittest_main'].assert_;
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};
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Blockly.JavaScript['unittest_assertequals'] = function(block) {
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// Asserts that a value equals another value.
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var resultsVar = Blockly.JavaScript.variableDB_.getName('unittestResults',
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Blockly.Variables.NAME_TYPE);
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var message = Blockly.JavaScript.quote_(block.getTitleValue('MESSAGE'));
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var actual = Blockly.JavaScript.valueToCode(block, 'ACTUAL',
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Blockly.JavaScript.ORDER_COMMA) || 'null';
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var expected = Blockly.JavaScript.valueToCode(block, 'EXPECTED',
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Blockly.JavaScript.ORDER_COMMA) || 'null';
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return Blockly.JavaScript['unittest_main'].defineAssert_() +
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'(' + actual + ', ' + expected + ', ' + message + ');\n';
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};
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Blockly.JavaScript['unittest_assertvalue'] = function(block) {
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// Asserts that a value is true, false, or null.
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var resultsVar = Blockly.JavaScript.variableDB_.getName('unittestResults',
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Blockly.Variables.NAME_TYPE);
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var message = Blockly.JavaScript.quote_(block.getTitleValue('MESSAGE'));
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var actual = Blockly.JavaScript.valueToCode(block, 'ACTUAL',
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Blockly.JavaScript.ORDER_COMMA) || 'null';
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var expected = block.getTitleValue('EXPECTED');
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if (expected == 'TRUE') {
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expected = 'true';
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} else if (expected == 'FALSE') {
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expected = 'false';
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} else if (expected == 'NULL') {
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expected = 'null';
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}
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return Blockly.JavaScript['unittest_main'].defineAssert_() +
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'(' + actual + ', ' + expected + ', ' + message + ');\n';
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};
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Blockly.JavaScript['unittest_fail'] = function(block) {
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// Always assert an error.
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var resultsVar = Blockly.JavaScript.variableDB_.getName('unittestResults',
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Blockly.Variables.NAME_TYPE);
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var message = Blockly.JavaScript.quote_(block.getTitleValue('MESSAGE'));
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if (!Blockly.JavaScript.definitions_['unittest_fail']) {
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var functionName = Blockly.JavaScript.variableDB_.getDistinctName(
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'fail', Blockly.Generator.NAME_TYPE);
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Blockly.JavaScript['unittest_fail'].assert = functionName;
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var func = [];
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func.push('function ' + functionName + '(message) {');
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func.push(' // Always assert an error.');
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func.push(' if (!' + resultsVar + ') {');
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func.push(' throw "Orphaned assert fail: ' + message + '";');
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func.push(' }');
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func.push(' ' + resultsVar + '.push([false, "Fail.", message]);');
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func.push('}');
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func.push('');
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Blockly.JavaScript.definitions_['unittest_fail'] = func.join('\n');
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}
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return Blockly.JavaScript['unittest_fail'].assert + '(' + message + ');\n';
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};
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