| 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258 |
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
| /*global CompilerContext, Handlebars, handlebarsEnv, shouldThrow */
describe('data', function() {
it("passing in data to a compiled function that expects data - works with helpers", function() {
var template = CompilerContext.compile("{{hello}}", {data: true});
var helpers = {
hello: function(options) {
return options.data.adjective + " " + this.noun;
}
};
var result = template({noun: "cat"}, {helpers: helpers, data: {adjective: "happy"}});
equals("happy cat", result, "Data output by helper");
});
it("data can be looked up via @foo", function() {
var template = CompilerContext.compile("{{@hello}}");
var result = template({}, { data: { hello: "hello" } });
equals("hello", result, "@foo retrieves template data");
});
it("deep @foo triggers automatic top-level data", function() {
var template = CompilerContext.compile('{{#let world="world"}}{{#if foo}}{{#if foo}}Hello {{@world}}{{/if}}{{/if}}{{/let}}');
var helpers = Handlebars.createFrame(handlebarsEnv.helpers);
helpers.let = function(options) {
var frame = Handlebars.createFrame(options.data);
for (var prop in options.hash) {
frame[prop] = options.hash[prop];
}
return options.fn(this, { data: frame });
};
var result = template({ foo: true }, { helpers: helpers });
equals("Hello world", result, "Automatic data was triggered");
});
it("parameter data can be looked up via @foo", function() {
var template = CompilerContext.compile("{{hello @world}}");
var helpers = {
hello: function(noun) {
return "Hello " + noun;
}
};
var result = template({}, { helpers: helpers, data: { world: "world" } });
equals("Hello world", result, "@foo as a parameter retrieves template data");
});
it("hash values can be looked up via @foo", function() {
var template = CompilerContext.compile("{{hello noun=@world}}");
var helpers = {
hello: function(options) {
return "Hello " + options.hash.noun;
}
};
var result = template({}, { helpers: helpers, data: { world: "world" } });
equals("Hello world", result, "@foo as a parameter retrieves template data");
});
it("nested parameter data can be looked up via @foo.bar", function() {
var template = CompilerContext.compile("{{hello @world.bar}}");
var helpers = {
hello: function(noun) {
return "Hello " + noun;
}
};
var result = template({}, { helpers: helpers, data: { world: {bar: "world" } } });
equals("Hello world", result, "@foo as a parameter retrieves template data");
});
it("nested parameter data does not fail with @world.bar", function() {
var template = CompilerContext.compile("{{hello @world.bar}}");
var helpers = {
hello: function(noun) {
return "Hello " + noun;
}
};
var result = template({}, { helpers: helpers, data: { foo: {bar: "world" } } });
equals("Hello undefined", result, "@foo as a parameter retrieves template data");
});
it("parameter data throws when using complex scope references", function() {
var string = "{{#goodbyes}}{{text}} cruel {{@foo/../name}}! {{/goodbyes}}";
shouldThrow(function() {
CompilerContext.compile(string);
}, Error);
});
it("data is inherited downstream", function() {
var template = CompilerContext.compile("{{#let foo=1 bar=2}}{{#let foo=bar.baz}}{{@bar}}{{@foo}}{{/let}}{{@foo}}{{/let}}", { data: true });
var helpers = {
let: function(options) {
var frame = Handlebars.createFrame(options.data);
for (var prop in options.hash) {
frame[prop] = options.hash[prop];
}
return options.fn(this, {data: frame});
}
};
var result = template({ bar: { baz: "hello world" } }, { helpers: helpers, data: {} });
equals("2hello world1", result, "data variables are inherited downstream");
});
it("passing in data to a compiled function that expects data - works with helpers in partials", function() {
var template = CompilerContext.compile("{{>my_partial}}", {data: true});
var partials = {
my_partial: CompilerContext.compile("{{hello}}", {data: true})
};
var helpers = {
hello: function(options) {
return options.data.adjective + " " + this.noun;
}
};
var result = template({noun: "cat"}, {helpers: helpers, partials: partials, data: {adjective: "happy"}});
equals("happy cat", result, "Data output by helper inside partial");
});
it("passing in data to a compiled function that expects data - works with helpers and parameters", function() {
var template = CompilerContext.compile("{{hello world}}", {data: true});
var helpers = {
hello: function(noun, options) {
return options.data.adjective + " " + noun + (this.exclaim ? "!" : "");
}
};
var result = template({exclaim: true, world: "world"}, {helpers: helpers, data: {adjective: "happy"}});
equals("happy world!", result, "Data output by helper");
});
it("passing in data to a compiled function that expects data - works with block helpers", function() {
var template = CompilerContext.compile("{{#hello}}{{world}}{{/hello}}", {data: true});
var helpers = {
hello: function(options) {
return options.fn(this);
},
world: function(options) {
return options.data.adjective + " world" + (this.exclaim ? "!" : "");
}
};
var result = template({exclaim: true}, {helpers: helpers, data: {adjective: "happy"}});
equals("happy world!", result, "Data output by helper");
});
it("passing in data to a compiled function that expects data - works with block helpers that use ..", function() {
var template = CompilerContext.compile("{{#hello}}{{world ../zomg}}{{/hello}}", {data: true});
var helpers = {
hello: function(options) {
return options.fn({exclaim: "?"});
},
world: function(thing, options) {
return options.data.adjective + " " + thing + (this.exclaim || "");
}
};
var result = template({exclaim: true, zomg: "world"}, {helpers: helpers, data: {adjective: "happy"}});
equals("happy world?", result, "Data output by helper");
});
it("passing in data to a compiled function that expects data - data is passed to with block helpers where children use ..", function() {
var template = CompilerContext.compile("{{#hello}}{{world ../zomg}}{{/hello}}", {data: true});
var helpers = {
hello: function(options) {
return options.data.accessData + " " + options.fn({exclaim: "?"});
},
world: function(thing, options) {
return options.data.adjective + " " + thing + (this.exclaim || "");
}
};
var result = template({exclaim: true, zomg: "world"}, {helpers: helpers, data: {adjective: "happy", accessData: "#win"}});
equals("#win happy world?", result, "Data output by helper");
});
it("you can override inherited data when invoking a helper", function() {
var template = CompilerContext.compile("{{#hello}}{{world zomg}}{{/hello}}", {data: true});
var helpers = {
hello: function(options) {
return options.fn({exclaim: "?", zomg: "world"}, { data: {adjective: "sad"} });
},
world: function(thing, options) {
return options.data.adjective + " " + thing + (this.exclaim || "");
}
};
var result = template({exclaim: true, zomg: "planet"}, {helpers: helpers, data: {adjective: "happy"}});
equals("sad world?", result, "Overriden data output by helper");
});
it("you can override inherited data when invoking a helper with depth", function() {
var template = CompilerContext.compile("{{#hello}}{{world ../zomg}}{{/hello}}", {data: true});
var helpers = {
hello: function(options) {
return options.fn({exclaim: "?"}, { data: {adjective: "sad"} });
},
world: function(thing, options) {
return options.data.adjective + " " + thing + (this.exclaim || "");
}
};
var result = template({exclaim: true, zomg: "world"}, {helpers: helpers, data: {adjective: "happy"}});
equals("sad world?", result, "Overriden data output by helper");
});
describe('@root', function() {
it('the root context can be looked up via @root', function() {
var template = CompilerContext.compile('{{@root.foo}}');
var result = template({foo: 'hello'}, { data: {} });
equals('hello', result);
result = template({foo: 'hello'}, {});
equals('hello', result);
});
it('passed root values take priority', function() {
var template = CompilerContext.compile('{{@root.foo}}');
var result = template({}, { data: {root: {foo: 'hello'} } });
equals('hello', result);
});
});
describe('nesting', function() {
it('the root context can be looked up via @root', function() {
var template = CompilerContext.compile('{{#helper}}{{#helper}}{{@./depth}} {{@../depth}} {{@../../depth}}{{/helper}}{{/helper}}');
var result = template({foo: 'hello'}, {
helpers: {
helper: function(options) {
var frame = Handlebars.createFrame(options.data);
frame.depth = options.data.depth + 1;
return options.fn(this, {data: frame});
}
},
data: {
depth: 0
}
});
equals('2 1 0', result);
});
});
});
|