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test-loader.js
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test-loader.js
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
'use strict';
let { Loader, main, unload, parseStack } = require('toolkit/loader');
exports['test dependency cycles'] = function(assert) {
let uri = module.uri.substr(0, module.uri.lastIndexOf('/')) +
'/fixtures/loader/cycles/'
let loader = Loader({ paths: { '': uri } });
let program = main(loader, 'main');
assert.equal(program.a.b, program.b, 'module `a` gets correct `b`');
assert.equal(program.b.a, program.a, 'module `b` gets correct `a`');
assert.equal(program.c.main, program, 'module `c` gets correct `main`');
unload(loader);
};
exports['test syntax errors'] = function(assert) {
let uri = module.uri.substr(0, module.uri.lastIndexOf('/')) +
'/fixtures/loader/syntax-error/';
let loader = Loader({ paths: { '': uri } });
try {
let program = main(loader, 'main');
} catch (error) {
assert.equal(error.name, "SyntaxError", "throws syntax error");
assert.equal(error.fileName.split("/").pop(), "error.js",
"Error contains filename");
assert.equal(error.lineNumber, 7, "error is on line 7")
let stack = parseStack(error.stack);
assert.equal(stack.pop().fileName, uri + "main.js",
"loader stack is omitted");
assert.equal(stack.pop().fileName, module.uri,
"previous in the stack is test module");
} finally {
unload(loader);
}
};
exports['test missing module'] = function(assert) {
let uri = module.uri.substr(0, module.uri.lastIndexOf('/')) +
'/fixtures/loader/missing/'
let loader = Loader({ paths: { '': uri } });
try {
let program = main(loader, 'main')
} catch (error) {
assert.equal(error.message, "Module `not-found` is not found at " +
uri + "not-found.js", "throws if error not found");
assert.equal(error.fileName.split("/").pop(), "main.js",
"Error fileName is requirer module");
assert.equal(error.lineNumber, 7, "error is on line 7");
let stack = parseStack(error.stack);
assert.equal(stack.pop().fileName, uri + "main.js",
"loader stack is omitted");
assert.equal(stack.pop().fileName, module.uri,
"previous in the stack is test module");
} finally {
unload(loader);
}
}
exports['test exceptions in modules'] = function(assert) {
let uri = module.uri.substr(0, module.uri.lastIndexOf('/')) +
'/fixtures/loader/exceptions/'
let loader = Loader({ paths: { '': uri } });
try {
let program = main(loader, 'main')
} catch (error) {
assert.equal(error.message, "Boom!", "thrown errors propagate");
assert.equal(error.fileName.split("/").pop(), "boomer.js",
"Error comes from the module that threw it");
assert.equal(error.lineNumber, 8, "error is on line 8");
let stack = parseStack(error.stack);
let frame = stack.pop()
assert.equal(frame.fileName, uri + "boomer.js",
"module that threw is first in the stack");
assert.equal(frame.name, "exports.boom",
"name is in the stack");
frame = stack.pop()
assert.equal(frame.fileName, uri + "main.js",
"module that called it is next in the stack");
assert.equal(frame.lineNumber, 9, "caller line is in the stack");
assert.equal(stack.pop().fileName, module.uri,
"this test module is next in the stack");
} finally {
unload(loader);
}
}
exports['test early errors in module'] = function(assert) {
let uri = module.uri.substr(0, module.uri.lastIndexOf('/')) +
'/fixtures/loader/errors/'
let loader = Loader({ paths: { '': uri } });
try {
let program = main(loader, 'main')
} catch (error) {
assert.equal(String(error),
"Error: opening input stream (invalid filename?)",
"thrown errors propagate");
assert.equal(error.fileName.split("/").pop(), "boomer.js",
"Error comes from the module that threw it");
assert.equal(error.lineNumber, 7, "error is on line 7");
let stack = parseStack(error.stack);
let frame = stack.pop()
assert.equal(frame.fileName, uri + "boomer.js",
"module that threw is first in the stack");
frame = stack.pop()
assert.equal(frame.fileName, uri + "main.js",
"module that called it is next in the stack");
assert.equal(frame.lineNumber, 7, "caller line is in the stack");
assert.equal(stack.pop().fileName, module.uri,
"this test module is next in the stack");
} finally {
unload(loader);
}
}
require('test').run(exports);