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Copy pathbasic.js
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146 lines (128 loc) · 4.41 KB
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const assert = require('assert');
const path = require('path');
const fs = require('fs');
const { spawn } = require('child_process');
function fixturePath(filepath) {
return path.join(__dirname, 'fixture', filepath);
}
function fixtureContent(filepath) {
return fs.readFileSync(fixturePath(filepath), 'utf-8').trim();
}
function run(...cliArgs) {
let stderr = '';
let stdout = '';
const args = [path.join(__dirname, '../bin/csso'), ...cliArgs];
const child = spawn('node', args, { stdio: 'pipe' });
const wrapper = new Promise(function(resolve, reject) {
child.once('exit', () =>
stderr ? reject(new Error(stderr)) : resolve(stdout)
);
});
child.stderr.on('data', chunk => stderr += chunk);
child.stdout.on('data', chunk => stdout += chunk);
wrapper.input = function(data) {
child.stdin.write(data);
child.stdin.end();
return wrapper;
};
wrapper.output = expected => wrapper.then(actual => {
if (typeof expected === 'function') {
expected(actual.trim());
} else if (typeof expected === 'string') {
assert.equal(actual.trim(), expected);
} else {
assert.deepStrictEqual(JSON.parse(actual), expected);
}
});
return wrapper;
}
it('should output version', () =>
run('-v')
.output(require('csso/package.json').version)
);
it('should read content from stdin if no file specified', () =>
run()
.input(fixtureContent('1.css'))
.output(fixtureContent('1.min.css'))
);
it('should read from file', () =>
run(fixturePath('1.css'))
.output(fixtureContent('1.min.css'))
);
it('--source-map inline', () =>
run(fixturePath('1.css'), '--source-map', 'inline')
.output(stdout => {
const expected = fixtureContent('1.min.css.map');
const actual = Buffer.from(String(stdout).match(/data:application\/json;base64,(.+)/)[1], 'base64').toString('utf-8');
assert.equal(actual, expected);
})
);
it('--source-map file', () =>
run(
fixturePath('1.css'),
'--source-map', 'file',
'--output', fixturePath('write-hack/1-source-map-file.min.css')
).then(() => {
assert.equal(
fixtureContent('write-hack/1-source-map-file.min.css'),
fixtureContent('1-source-map-file.min.css')
);
assert.equal(
fixtureContent('write-hack/1-source-map-file.min.css.map'),
fixtureContent('1-source-map-file.min.css.map')
);
})
);
it('--source-map <filepath>', () =>
run(
fixturePath('1.css'),
'--source-map', fixturePath('write-hack/1-source-map-file.min.css.map')
).output(actual => {
assert.equal(
actual,
fixtureContent('1-source-map-filepath.min.css')
);
assert.equal(
fixtureContent('write-hack/1-source-map-file.min.css.map'),
fixtureContent('1-source-map-file.min.css.map')
);
})
);
it('should fetch a source map from a comment in source file', () =>
run(
fixturePath('bootstrap-grid-source-map-filepath.css'),
'--source-map', fixturePath('write-hack/bootstrap-grid-source-map-filepath.min.css.map')
).output(actual => {
assert.equal(
actual,
fixtureContent('bootstrap-grid-source-map-filepath.min.css')
);
assert.equal(
fixtureContent('write-hack/bootstrap-grid-source-map-filepath.min.css.map'),
fixtureContent('bootstrap-grid-source-map-filepath.min.css.map')
);
})
);
it('should fetch a source map from a file with .map extension', () =>
run(
fixturePath('bootstrap-grid.css'),
'--source-map', fixturePath('write-hack/bootstrap-grid.min.css.map')
).output(actual => {
assert.equal(
actual,
fixtureContent('bootstrap-grid.min.css')
);
assert.equal(
fixtureContent('write-hack/bootstrap-grid.min.css.map'),
fixtureContent('bootstrap-grid.min.css.map')
);
})
);
it('should disable structure optimisations with --no-restructure option', () =>
run(fixturePath('1.css'), '--no-restructure')
.output(fixtureContent('1-no-restructure.min.css'))
);
it('should use usage data', () =>
run(fixturePath('usage.css'), '--usage', fixturePath('usage.css.json'))
.output(fixtureContent('usage.min.css'))
);