# Code coverage report for spec/regressions.js

## Statements: 27.94% (19 / 68) Branches: 100% (2 / 2) Functions: 4% (1 / 25) Lines: 27.94% (19 / 68) Ignored: none

All files » spec/ » regressions.js

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     /*global CompilerContext, Handlebars, shouldCompileTo, shouldThrow */
    describe('Regressions', function() {
      it("GH-94: Cannot read property of undefined", function() {
        var data = {"books":[{"title":"The origin of species","author":{"name":"Charles Darwin"}},{"title":"Lazarillo de Tormes"}]};
        var string = "{{#books}}{{title}}{{author.name}}{{/books}}";
        shouldCompileTo(string, data, "The origin of speciesCharles DarwinLazarillo de Tormes",
                        "Renders without an undefined property error");
      });

      it("GH-150: Inverted sections print when they shouldn't", function() {
        var string = "{{^set}}not set{{/set}} :: {{#set}}set{{/set}}";

        shouldCompileTo(string, {}, "not set :: ", "inverted sections run when property isn't present in context");
        shouldCompileTo(string, {set: undefined}, "not set :: ", "inverted sections run when property is undefined");
        shouldCompileTo(string, {set: false}, "not set :: ", "inverted sections run when property is false");
        shouldCompileTo(string, {set: true}, " :: set", "inverted sections don't run when property is true");
      });

      it("GH-158: Using array index twice, breaks the template", function() {
        var string = "{{arr.[0]}}, {{arr.[1]}}";
        var data = { "arr": [1,2] };

        shouldCompileTo(string, data, "1, 2", "it works as expected");
      });

      it("bug reported by @fat where lambdas weren't being properly resolved", function() {
        var string = '<strong>This is a slightly more complicated {{thing}}.</strong>.\n'
            + '{{! Just ignore this business. }}\n'
            + 'Check this out:\n'
            + '{{#hasThings}}\n'
            + '<ul>\n'
            + '{{#things}}\n'
            + '<li class={{className}}>{{word}}</li>\n'
            + '{{/things}}</ul>.\n'
            + '{{/hasThings}}\n'
            + '{{^hasThings}}\n'
            + '\n'
            + '<small>Nothing to check out...</small>\n'
            + '{{/hasThings}}';
        var data = {
          thing: function() {
            return "blah";
          },
          things: [
            {className: "one", word: "@fat"},
            {className: "two", word: "@dhg"},
            {className: "three", word:"@sayrer"}
          ],
          hasThings: function() {
            return true;
          }
        };

        var output = '<strong>This is a slightly more complicated blah.</strong>.\n'
            + 'Check this out:\n'
            + '<ul>\n'
            + '<li class=one>@fat</li>\n'
            + '<li class=two>@dhg</li>\n'
            + '<li class=three>@sayrer</li>\n'
            + '</ul>.\n';
        shouldCompileTo(string, data, output);
      });

      it('GH-408: Multiple loops fail', function() {
        var context = [
          { name: "John Doe", location: { city: "Chicago" } },
          { name: "Jane Doe", location: { city: "New York"} }
        ];

        var template = CompilerContext.compile('{{#.}}{{name}}{{/.}}{{#.}}{{name}}{{/.}}{{#.}}{{name}}{{/.}}');

        var result = template(context);
        equals(result, "John DoeJane DoeJohn DoeJane DoeJohn DoeJane Doe", 'It should output multiple times');
      });

      it('GS-428: Nested if else rendering', function() {
        var succeedingTemplate = '{{#inverse}} {{#blk}} Unexpected {{/blk}} {{else}}  {{#blk}} Expected {{/blk}} {{/inverse}}';
        var failingTemplate = '{{#inverse}} {{#blk}} Unexpected {{/blk}} {{else}} {{#blk}} Expected {{/blk}} {{/inverse}}';

        var helpers = {
          blk: function(block) { return block.fn(''); },
          inverse: function(block) { return block.inverse(''); }
        };

        shouldCompileTo(succeedingTemplate, [{}, helpers], '   Expected  ');
        shouldCompileTo(failingTemplate, [{}, helpers], '  Expected  ');
      });

      it('GH-458: Scoped this identifier', function() {
        shouldCompileTo('{{./foo}}', {foo: 'bar'}, 'bar');
      });

      it('GH-375: Unicode line terminators', function() {
        shouldCompileTo('\u2028', {}, '\u2028');
      });

      it('GH-534: Object prototype aliases', function() {
        Object.prototype[0xD834] = true;

        shouldCompileTo('{{foo}}', { foo: 'bar' }, 'bar');

        delete Object.prototype[0xD834];
      });

      it('GH-437: Matching escaping', function() {
        shouldThrow(function() {
          CompilerContext.compile('{{{a}}');
        }, Error);
        shouldThrow(function() {
          CompilerContext.compile('{{a}}}');
        }, Error);
      });

      it("GH-676: Using array in escaping mustache fails", function() {
        var string = "{{arr}}";
        var data = { "arr": [1,2] };

        shouldCompileTo(string, data, data.arr.toString(), "it works as expected");
      });

      it("Mustache man page", function() {
        var string = "Hello {{name}}. You have just won ${{value}}!{{#in_ca}} Well, ${{taxed_value}}, after taxes.{{/in_ca}}";
        var data = {
          "name": "Chris",
          "value": 10000,
          "taxed_value": 10000 - (10000 * 0.4),
          "in_ca": true
        };

        shouldCompileTo(string, data, "Hello Chris. You have just won $10000! Well, $6000, after taxes.", "the hello world mustache example works");
      });

      it("Passing falsy values to Handlebars.compile throws an error", function() {
        shouldThrow(function() {
          CompilerContext.compile(null);
        }, Error, 'You must pass a string or Handlebars AST to Handlebars.precompile. You passed null');
      });

      it('GH-731: zero context rendering', function() {
        shouldCompileTo('{{#foo}} This is {{bar}} ~ {{/foo}}', {foo: 0, bar: 'OK'}, ' This is  ~ ');
      });

      it('GH-820: zero pathed rendering', function() {
        shouldCompileTo('{{foo.bar}}', {foo: 0}, '');
      });

      if (Handlebars.AST) {
        it("can pass through an already-compiled AST via compile/precompile", function() {
          equal(Handlebars.compile(new Handlebars.AST.ProgramNode(true, [ new Handlebars.AST.ContentNode("Hello")]))(), 'Hello');
        });

        it("can pass through an empty string", function() {
          equal(Handlebars.compile('')(), '');
        });
      }
    });