# Code coverage report for spec/builtins.js

## Statements: 20% (27 / 135) Branches: 0% (0 / 4) Functions: 13.89% (5 / 36) Lines: 20.93% (27 / 129) Ignored: none

All files » spec/ » builtins.js

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     /*global CompilerContext, shouldCompileTo, shouldThrow, compileWithPartials, handlebarsEnv */
    describe('builtin helpers', function() {
      describe('#if', function() {
        it("if", function() {
          var string   = "{{#if goodbye}}GOODBYE {{/if}}cruel {{world}}!";
          shouldCompileTo(string, {goodbye: true, world: "world"}, "GOODBYE cruel world!",
                          "if with boolean argument shows the contents when true");
          shouldCompileTo(string, {goodbye: "dummy", world: "world"}, "GOODBYE cruel world!",
                          "if with string argument shows the contents");
          shouldCompileTo(string, {goodbye: false, world: "world"}, "cruel world!",
                          "if with boolean argument does not show the contents when false");
          shouldCompileTo(string, {world: "world"}, "cruel world!",
                          "if with undefined does not show the contents");
          shouldCompileTo(string, {goodbye: ['foo'], world: "world"}, "GOODBYE cruel world!",
                          "if with non-empty array shows the contents");
          shouldCompileTo(string, {goodbye: [], world: "world"}, "cruel world!",
                          "if with empty array does not show the contents");
          shouldCompileTo(string, {goodbye: 0, world: "world"}, "cruel world!",
                          "if with zero does not show the contents");
          shouldCompileTo("{{#if goodbye includeZero=true}}GOODBYE {{/if}}cruel {{world}}!",
                          {goodbye: 0, world: "world"}, "GOODBYE cruel world!",
                          "if with zero does not show the contents");
        });

        it("if with function argument", function() {
          var string   = "{{#if goodbye}}GOODBYE {{/if}}cruel {{world}}!";
          shouldCompileTo(string, {goodbye: function() {return true;}, world: "world"}, "GOODBYE cruel world!",
                          "if with function shows the contents when function returns true");
          shouldCompileTo(string, {goodbye: function() {return this.world;}, world: "world"}, "GOODBYE cruel world!",
                          "if with function shows the contents when function returns string");
          shouldCompileTo(string, {goodbye: function() {return false;}, world: "world"}, "cruel world!",
                          "if with function does not show the contents when returns false");
          shouldCompileTo(string, {goodbye: function() {return this.foo;}, world: "world"}, "cruel world!",
                          "if with function does not show the contents when returns undefined");
        });
      });

      describe('#with', function() {
        it("with", function() {
          var string = "{{#with person}}{{first}} {{last}}{{/with}}";
          shouldCompileTo(string, {person: {first: "Alan", last: "Johnson"}}, "Alan Johnson");
        });
        it("with with function argument", function() {
          var string = "{{#with person}}{{first}} {{last}}{{/with}}";
          shouldCompileTo(string, {person: function() { return {first: "Alan", last: "Johnson"};}}, "Alan Johnson");
        });
        it("with with else", function() {
          var string = "{{#with person}}Person is present{{else}}Person is not present{{/with}}";
          shouldCompileTo(string, {}, "Person is not present");
        });
      });

      describe('#each', function() {
        beforeEach(function() {
          handlebarsEnv.registerHelper('detectDataInsideEach', function(options) {
            return options.data && options.data.exclaim;
          });
        });

        it("each", function() {
          var string   = "{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!";
          var hash     = {goodbyes: [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}], world: "world"};
          shouldCompileTo(string, hash, "goodbye! Goodbye! GOODBYE! cruel world!",
                          "each with array argument iterates over the contents when not empty");
          shouldCompileTo(string, {goodbyes: [], world: "world"}, "cruel world!",
                          "each with array argument ignores the contents when empty");
        });

        it("each with an object and @key", function() {
          var string   = "{{#each goodbyes}}{{@key}}. {{text}}! {{/each}}cruel {{world}}!";
          var hash     = {goodbyes: {"<b>#1</b>": {text: "goodbye"}, 2: {text: "GOODBYE"}}, world: "world"};

          // Object property iteration order is undefined according to ECMA spec,
          // so we need to check both possible orders
          // @see http://stackoverflow.com/questions/280713/elements-order-in-a-for-in-loop
          var actual = compileWithPartials(string, hash);
          var expected1 = "&lt;b&gt;#1&lt;/b&gt;. goodbye! 2. GOODBYE! cruel world!";
          var expected2 = "2. GOODBYE! &lt;b&gt;#1&lt;/b&gt;. goodbye! cruel world!";

          equals(actual === expected1 || actual === expected2, true, "each with object argument iterates over the contents when not empty");
          shouldCompileTo(string, {goodbyes: [], world: "world"}, "cruel world!",
                          "each with object argument ignores the contents when empty");
        });

        it("each with @index", function() {
          var string = "{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!";
          var hash   = {goodbyes: [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}], world: "world"};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, "0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!", "The @index variable is used");
        });

        it("each with nested @index", function() {
          var string = "{{#each goodbyes}}{{@index}}. {{text}}! {{#each ../goodbyes}}{{@index}} {{/each}}After {{@index}} {{/each}}{{@index}}cruel {{world}}!";
          var hash   = {goodbyes: [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}], world: "world"};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, "0. goodbye! 0 1 2 After 0 1. Goodbye! 0 1 2 After 1 2. GOODBYE! 0 1 2 After 2 cruel world!", "The @index variable is used");
        });

        it("each object with @index", function() {
          var string = "{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!";
          var hash   = {goodbyes: {'a': {text: "goodbye"}, b: {text: "Goodbye"}, c: {text: "GOODBYE"}}, world: "world"};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, "0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!", "The @index variable is used");
        });

        it("each with @first", function() {
          var string = "{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!";
          var hash   = {goodbyes: [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}], world: "world"};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, "goodbye! cruel world!", "The @first variable is used");
        });

        it("each with nested @first", function() {
          var string = "{{#each goodbyes}}({{#if @first}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @first}}{{text}}!{{/if}}{{/each}}{{#if @first}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!";
          var hash   = {goodbyes: [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}], world: "world"};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, "(goodbye! goodbye! goodbye!) (goodbye!) (goodbye!) cruel world!", "The @first variable is used");
        });

        it("each object with @first", function() {
          var string = "{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!";
          var hash   = {goodbyes: {'foo': {text: "goodbye"}, bar: {text: "Goodbye"}}, world: "world"};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, "goodbye! cruel world!", "The @first variable is used");
        });

        it("each with @last", function() {
          var string = "{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!";
          var hash   = {goodbyes: [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}], world: "world"};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, "GOODBYE! cruel world!", "The @last variable is used");
        });

        it("each with nested @last", function() {
          var string = "{{#each goodbyes}}({{#if @last}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @last}}{{text}}!{{/if}}{{/each}}{{#if @last}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!";
          var hash   = {goodbyes: [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}], world: "world"};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, "(GOODBYE!) (GOODBYE!) (GOODBYE! GOODBYE! GOODBYE!) cruel world!", "The @last variable is used");
        });

        it("each with function argument", function() {
          var string = "{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!";
          var hash   = {goodbyes: function () { return [{text: "goodbye"}, {text: "Goodbye"}, {text: "GOODBYE"}];}, world: "world"};
          shouldCompileTo(string, hash, "goodbye! Goodbye! GOODBYE! cruel world!",
                    "each with array function argument iterates over the contents when not empty");
          shouldCompileTo(string, {goodbyes: [], world: "world"}, "cruel world!",
                    "each with array function argument ignores the contents when empty");
        });

        it("data passed to helpers", function() {
          var string = "{{#each letters}}{{this}}{{detectDataInsideEach}}{{/each}}";
          var hash = {letters: ['a', 'b', 'c']};

          var template = CompilerContext.compile(string);
          var result = template(hash, {
            data: {
              exclaim: '!'
            }
          });
          equal(result, 'a!b!c!', 'should output data');
        });

        it("each on implicit context", function() {
          shouldThrow(function() {
            var template = CompilerContext.compile("{{#each}}{{text}}! {{/each}}cruel world!");
            template({});
          }, handlebarsEnv.Exception, 'Must pass iterator to #each');
        });
      });

      it("#log", function() {
        var string = "{{log blah}}";
        var hash   = { blah: "whee" };

        var levelArg, logArg;
        handlebarsEnv.log = function(level, arg){
          levelArg = level;
          logArg = arg;
        };

        shouldCompileTo(string, hash, "", "log should not display");
        equals(1, levelArg, "should call log with 1");
        equals("whee", logArg, "should call log with 'whee'");
      });

      describe('#lookup', function() {
        it('should lookup arbitrary content', function() {
          var string = '{{#each goodbyes}}{{lookup ../data .}}{{/each}}',
              hash   = {goodbyes: [0, 1], data: ['foo', 'bar']};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, 'foobar');
        });
        it('should not fail on undefined value', function() {
          var string = '{{#each goodbyes}}{{lookup ../bar .}}{{/each}}',
              hash   = {goodbyes: [0, 1], data: ['foo', 'bar']};

          var template = CompilerContext.compile(string);
          var result = template(hash);

          equal(result, '');
        });
      });
    });