closure-builder/test/compilers/closure-compiler_test.js

Simple Closure, Soy and JavaScript Build system

/**
 * @fileoverview Closure Compilers - Closure Compiler
 *
 * @license Copyright 2016 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @author mbordihn@google.com (Markus Bordihn)
 */
let assert = require('assert');
let path = require('path');

let fileTools = require('../../tools/file.js');
let pathTools = require('../../tools/path.js');

let closureCompiler = require('../../compilers/closure-compiler/compiler.js');

let glob = fileTools.getGlobFiles;
let testDirectory = pathTools.getTempPath('closure-compiler-test');


describe('Closure Compiler:local:', function() {
  it('Single file', function(done) {
    this.timeout(25000);
    let files = ['test_files/closure_test_1.js'];
    let options = {
      dependency_mode: 'STRICT',
      entry_point: 'closure_test_1',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, file, content) {
        assert(!errors);
        assert(!warnings);
        assert(content);
        assert.equal(content,
          'var closure_test_1=function(){return"_CLOSURE_TEST_1"};\n');
        done();
      });
  });

  it('Two files', function(done) {
    this.timeout(25000);
    let files = [
      'test_files/closure_test_1.js',
      'test_files/closure_test_2.js',
    ];
    let options = {
      dependency_mode: 'STRICT',
      entry_point: 'closure_test_2',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, file, content) {
        assert(!errors);
        assert(!warnings);
        assert(content);
        assert.equal(content,
          'var closure_test_1=function(){return"_CLOSURE_TEST_1"};' +
          'var closure_test_2=function(){return closure_test_1()+' +
          '"_CLOSURE_TEST_2"};\n');
        done();
      });
  });

  it('Group of files', function(done) {
    this.timeout(25000);
    let files = glob(['test_files/closure_test_*.js']);
    let options = {
      dependency_mode: 'STRICT',
      entry_point: 'closure_test_group',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, files, content) {
        assert(!errors);
        assert(!warnings);
        assert(content);
        assert.equal(content,
          'var closure_test_1=function(){return"_CLOSURE_TEST_1"};' +
          'var closure_test_2=function(){return closure_test_1()+' +
          '"_CLOSURE_TEST_2"};var closure_test_group=function(){' +
          'return closure_test_2()+"_CLOSURE_TEST_2"};\n');
        done();
      });
  });

  it('Duplicate input files', function(done) {
    this.timeout(25000);
    let files = glob([
      'test_files/closure_test_*.js',
      'test_files/closure_test_duplicate.js',
    ]);
    let options = {
      dependency_mode: 'STRICT',
      entry_point: 'closure_test_duplicate',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, files, content) {
        assert(!errors);
        assert(!warnings);
        assert(content);
        done();
      });
  });

  it('Externs', function(done) {
    this.timeout(25000);
    let files = glob(['test_files/closure_test_*.js']);
    let options = {
      externs: ['test_files/externs.js'],
      dependency_mode: 'STRICT',
      entry_point: 'closure_test_extern',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, files, content) {
        assert(!errors);
        assert(!warnings);
        assert(content);
        assert.equal(content,
          'var closure_test_extern=function(){return global_extern};\n');
        done();
      });
  });

  it('Module files', function(done) {
    this.timeout(30000);
    let files = glob(['test_files/closure_test_*.js']);
    let options = {
      dependency_mode: 'STRICT',
      entry_point: 'closure_test_require_module',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, files, content) {
        assert(!errors);
        assert(!warnings);
        assert(content);
        assert(content.indexOf('_CLOSURE_TEST_MODULE') !== -1);
        assert(content.indexOf(
          'var module$exports$closure_test_module={') !== -1);
        assert(content.indexOf(
          'var module$exports$closure_test_require_module=function') !== -1);
        done();
      });
  });

  it('Expected Error Message', function(done) {
    this.timeout(30000);
    let files = ['test_files/special/closure_error.js'];
    let options = {
      dependency_mode: 'STRICT',
      entry_point: 'closure_test_error',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, files, content) {
        assert(errors);
        assert(!warnings);
        assert(!content);
        done();
      });
  });

  it('Expected Warning Message', function(done) {
    this.timeout(30000);
    let files = ['test_files/special/closure_warning.js'];
    let options = {
      dependency_mode: 'STRICT',
      entry_point: 'closure_test_warning',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, files, content) {
        assert(!errors);
        assert(warnings);
        assert(content);
        done();
      });
  });

  it('Automatic @export handling', function(done) {
    this.timeout(40000);
    let files = ['test_files/special/closure_export.js'];
    let options = {
      dependency_mode: 'STRICT',
      generate_exports: true,
      entry_point: 'closure_test_export',
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, files, content) {
        assert(!errors);
        assert(!warnings);
        assert(content);
        assert(content.indexOf(
          'goog.exportSymbol("closure_test_export"') !== -1);
        assert(content.indexOf(
          'goog.exportProperty(closure_test_export.prototype,"visible"'
          ) !== -1);
        assert(content.indexOf(
          'goog.exportProperty(closure_test_export.prototype,"invisible'
          ) === -1);
        done();
      });
  });

  describe('ECMA Script 6', function() {
    it('Const', function(done) {
      this.timeout(40000);
      let files = glob(['test_files/closure_test_*.js']);
      let options = {
        dependency_mode: 'STRICT',
        entry_point: 'closure_test_ecma6_const',
        language_in: 'ECMASCRIPT6',
        language_out: 'ES5_STRICT',
      };
      closureCompiler.localCompile(files, options, null,
        function(errors, warnings, files, content) {
          assert(!errors);
          assert(!warnings);
          assert(content);
          done();
        });
    });
    it('Let', function(done) {
      this.timeout(40000);
      this.timeout(40000);
      let files = glob(['test_files/closure_test_*.js']);
      let options = {
        dependency_mode: 'STRICT',
        entry_point: 'closure_test_ecma6_let',
        language_in: 'ECMASCRIPT6',
        language_out: 'ES5_STRICT',
      };
      closureCompiler.localCompile(files, options, null,
        function(errors, warnings, files, content) {
          assert(!errors);
          assert(!warnings);
          assert(content);
          done();
        });
    });
    it('No ECMA Script 6', function(done) {
      this.timeout(40000);
      let files = [
        'test_files/closure_test_1.js',
        'test_files/closure_test_2.js',
        'test_files/closure_test_no_ecma6.js',
      ];
      let options = {
        dependency_mode: 'STRICT',
        entry_point: 'closure_test_no_ecma6',
      };
      closureCompiler.localCompile(files, options, null,
        function(errors, warnings, files, content) {
          assert(!errors);
          assert(!warnings);
          assert(content);
          done();
        });
    });
  });

  it('Create Source Map', function(done) {
    this.timeout(40000);
    let files = ['test_files/special/closure_export.js'];
    let options = {
      dependency_mode: 'STRICT',
      compilation_level: 'ADVANCED',
      generate_exports: true,
      entry_point: 'closure_test_export',
      create_source_map: path.join(testDirectory, 'source_maps',
        'closure_test_source_map.map'),
    };
    closureCompiler.localCompile(files, options, null,
      function(errors, warnings, files, content) {
        assert(!errors);
        assert(!warnings);
        assert(content);
        done();
      });
  });

  describe('parseErrorMessage', function() {
    it('No Errors, No warnings', function() {
      let result = closureCompiler.parseErrorMessage();
      assert(result.errors === 0);
      assert(result.warnings === 0);
    });

    it('Error', function() {
      let result = closureCompiler.parseErrorMessage('Error: ...');
      assert(result.errors === 1);
      assert(result.warnings === 0);
    });

    it('Warning', function() {
      let result = closureCompiler.parseErrorMessage('Warning: ...');
      assert(result.errors === 0);
      assert(result.warnings === 1);
    });

    it('Compiler Error', function() {
      let result = closureCompiler.parseErrorMessage('INTERNAL COMPILER ERROR');
      assert(result.errors === 1);
      assert(result.warnings === 0);
    });
  });
});