forked from systemjs/builder
/
sourcemaps.js
266 lines (236 loc) · 8.29 KB
/
sourcemaps.js
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var fs = require('fs');
var Builder = require('../index');
function atob(str) {
return new Buffer(str, 'base64').toString('binary');
}
var err = function(e) {
setTimeout(function() {
throw e;
});
};
var buildOpts = { sourceMaps: true };
var configFile = './test/fixtures/test-tree.config.js';
var compareSourceMaps = function(filename, expectation, done, transpiler) {
var instance = new Builder();
instance.loadConfigSync(configFile);
buildOpts.config = buildOpts.config || {};
buildOpts.config.transpiler = transpiler || 'traceur';
instance.bundle(filename, null, buildOpts)
.then(function(output) {
assert.equal(output.sourceMap.toString(), expectation);
})
.then(done)
.catch(err);
};
var readExpectation = function(filename) {
return fs.readFileSync('test/fixtures/sourcemaps-expectations/' + filename).toString().replace(/\n$/, '');
};
function writeTestOutput() {
var builder = new Builder();
return builder.loadConfig(configFile)
.then(function() {
builder.buildStatic('first.js', 'test/output/output.js', buildOpts);
});
}
function writeSourceMaps(moduleName, transpiler, sourceMapFile) {
var instance = new Builder();
instance.loadConfigSync(configFile);
buildOpts.config = buildOpts.config || {};
buildOpts.config.transpiler = transpiler || 'traceur';
instance.bundle(moduleName, null, buildOpts)
.then(function(output) {
fs.writeFile('test/fixtures/sourcemaps-expectations/' + sourceMapFile, output.sourceMap.toString());
})
.catch(err);
}
var toJSON = function(map) {
return JSON.parse(map.toString());
};
var getSources = function(map) {
return toJSON(map).sources;
};
suite('Source Maps', function() {
suiteSetup(writeTestOutput);
test('can render inline', function(done) {
var module = 'amd-2.js + cjs.js';
var instance = new Builder();
instance.loadConfigSync(configFile);
instance.bundle(module, null, { sourceMaps: 'inline' })
.then(function(output) {
assert.equal(undefined, output.sourceMap);
var source = output.source;
assert.equal(1, source.match(/sourceMappingURL=/g).length);
var lines = output.source.split("\n");
var lastLine = lines[lines.length - 1];
var commentPrefix = /^\/\/# sourceMappingURL=data:application\/json;base64,/;
assert(lastLine.match(commentPrefix));
var encoding = lastLine.replace(commentPrefix, "");
var decoded = JSON.parse(atob(encoding));
assert.deepEqual(decoded.sources,
[ "test/fixtures/test-tree/amd-2.js",
"test/fixtures/test-tree/cjs.js" ]);
})
.then(done)
.catch(err);
});
test('can consume input source maps', function(done) {
var module = 'register.js';
var instance = new Builder();
instance.loadConfigSync(configFile);
instance.bundle(module, null, { sourceMaps: true })
.then(function(output) {
var sources = getSources(output.sourceMap);
assert.deepEqual(sources,
[ "test/fixtures/test-tree/jquery.js",
"test/fixtures/test-tree/global.js",
"test/fixtures/test-tree/example",
"test/fixtures/test-tree/babel.js" ]);
})
.then(done)
.catch(err);
});
test('can be disabled for tracing', function(done) {
var module = 'register.js';
var instance = new Builder();
// Load our test configuration.
instance.loadConfigSync(configFile);
instance
.bundle(module, { sourceMaps: false })
.then(function(output) {
assert.isUndefined(output.sourceMap);
})
.then(done)
.catch(err);
});
suite('sources paths', function() {
test('are relative to outFile', function(done) {
var builder = new Builder();
builder.loadConfigSync(configFile);
builder.buildStatic('first.js', 'test/output/output.js', buildOpts)
.then(function(outputs) {
var sources = getSources(outputs.sourceMap);
assert.deepEqual(sources,
[ '../fixtures/test-tree/third.js',
'../fixtures/test-tree/cjs.js',
'../fixtures/test-tree/second.js',
'../fixtures/test-tree/jquery.js',
'../fixtures/test-tree/global.js',
'../fixtures/test-tree/text.txt',
'../fixtures/test-tree/amd.js',
'../fixtures/test-tree/unknown', // component.jsx
'../fixtures/test-tree/file.json',
'../fixtures/test-tree/first.js' ]);
})
.then(done)
.catch(err);
});
test('are relative to baseURL, if no outFile', function(done) {
var builder = new Builder();
builder.config({ baseURL: 'test/fixtures/test-tree' });
builder.loadConfigSync(configFile);
var opts = { sourceMaps: true };
builder.buildStatic('first.js', null, opts)
.then(function(outputs) {
var sources = getSources(outputs.sourceMap);
assert.deepEqual(sources,
[ 'third.js',
'cjs.js',
'second.js',
'jquery.js',
'global.js',
'text.txt',
'amd.js',
'unknown', // component.jsx
'file.json',
'first.js' ]);
})
.then(done)
.catch(err);
});
});
suite('Option: sourceMapContents', function() {
test.skip('includes all file contents', function(done) {
var builder = new Builder();
builder.loadConfigSync(configFile);
var opts = { sourceMaps: true, sourceMapContents: true };
builder.buildStatic('first.js', null, opts)
.then(function(outputs) {
var map = toJSON(outputs.sourceMap);
var sources = map.sources;
var contents = map.sourcesContent;
assert.equal(sources.length, contents.length);
for (var i=0; i<contents.length; i++) {
var content = contents[i];
assert(content && content.length > 0, 'empty sourcemap content');
assert.equal(content, fs.readFileSync(sources[i]).toString());
}
})
.then(done)
.catch(err);
});
});
suite('Traceur', function() {
var transpiler = 'traceur';
suite('without input source maps', function() {
test('handles single compilation targets correctly', function(done) {
var module = 'amd-2.js';
var source = 'traceur.tree.single.json';
if (process.env.UPDATE_EXPECTATIONS)
writeSourceMaps(module, transpiler, source);
var expected = readExpectation(source);
compareSourceMaps(module, expected, done, transpiler);
});
test('handles multiple compilation targets correctly', function(done) {
var module = 'first.js';
var source = 'traceur.tree.multi.json';
if (process.env.UPDATE_EXPECTATIONS)
writeSourceMaps(module, transpiler, source);
var expected = readExpectation(source);
compareSourceMaps(module, expected, done, transpiler);
});
});
});
suite('babel', function() {
var transpiler = 'babel';
suite('without input source maps', function() {
test('handles single compilation targets correctly', function(done) {
var module = 'amd-2.js';
var source = 'babel.tree.single.json';
if (process.env.UPDATE_EXPECTATIONS)
writeSourceMaps(module, transpiler, source);
var expected = readExpectation(source);
compareSourceMaps(module, expected, done, transpiler);
});
test('handles multiple compilation targets correctly', function(done) {
var module = 'first.js';
var source = 'babel.tree.multi.json';
if (process.env.UPDATE_EXPECTATIONS)
writeSourceMaps(module, transpiler, source);
var expected = readExpectation(source);
compareSourceMaps(module, expected, done, transpiler);
});
});
});
test('can handle multiple transpiled files with same name', function(done) {
var module = 'sameName/1/amd.js + sameName/2/amd.js';
var instance = new Builder();
instance.loadConfigSync(configFile);
instance.config({
transpiler: 'plugin-babel',
map: {
'plugin-babel': './node_modules/systemjs-plugin-babel/plugin-babel.js',
'systemjs-babel-build': './node_modules/systemjs-plugin-babel/systemjs-babel-node.js',
},
packages: {
sameName: {
format: 'amd',
},
},
});
instance.buildStatic(module, null, { sourceMaps: true, sourceMapContents: true })
.then(function() {
done()
})
.catch(err);
});
});