addon-sdk/source/test/test-require.js

branch
TOR_BUG_9701
changeset 10
ac0c01689b40
equal deleted inserted replaced
-1:000000000000 0:37e6c6a1210f
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 'use strict';
6
7 const traceback = require('sdk/console/traceback');
8 const REQUIRE_LINE_NO = 30;
9
10 exports.test_no_args = function(assert) {
11 let passed = tryRequireModule(assert);
12 assert.ok(passed, 'require() with no args should raise helpful error');
13 };
14
15 exports.test_invalid_sdk_module = function (assert) {
16 let passed = tryRequireModule(assert, 'sdk/does-not-exist');
17 assert.ok(passed, 'require() with an invalid sdk module should raise');
18 };
19
20 exports.test_invalid_relative_module = function (assert) {
21 let passed = tryRequireModule(assert, './does-not-exist');
22 assert.ok(passed, 'require() with an invalid relative module should raise');
23 };
24
25
26 function tryRequireModule(assert, module) {
27 let passed = false;
28 try {
29 // This line number is important, referenced in REQUIRE_LINE_NO
30 let doesNotExist = require(module);
31 } catch(e) {
32 checkError(assert, module, e);
33 passed = true;
34 }
35 return passed;
36 }
37
38 function checkError (assert, name, e) {
39 let msg = e.toString();
40 if (name) {
41 assert.ok(/is not found at/.test(msg),
42 'Error message indicates module not found');
43 assert.ok(msg.indexOf(name.replace(/\./g,'')) > -1,
44 'Error message has the invalid module name in the message');
45 }
46 else {
47 assert.equal(msg.indexOf('Error: you must provide a module name when calling require() from '), 0);
48 assert.ok(msg.indexOf("test-require") !== -1, msg);
49 }
50
51 // we'd also like to assert that the right filename
52 // and linenumber is in the stacktrace
53 let tb = traceback.fromException(e);
54 // Get the second to last frame, as the last frame is inside
55 // toolkit/loader
56 let lastFrame = tb[tb.length-2];
57 assert.ok(lastFrame.fileName.indexOf("test-require.js") !== -1,
58 'Filename found in stacktrace');
59 assert.equal(lastFrame.lineNumber, REQUIRE_LINE_NO,
60 'stacktrace has correct line number');
61 }
62
63 require('test').run(exports);

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