cache_persistent.js
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var parser = require('../');
var test = require('tap').test;
var path = require('path');
var fs = require('fs');
var files = {
foo: path.join(__dirname, '/files/foo.js'),
bar: path.join(__dirname, '/files/bar.js')
};
test('uses persistent cache', function (t) {
t.plan(1);
var p = parser({
persistentCache: function (file, id, pkg, fallback, cb) {
if (file === files.bar) {
return fallback(null, cb);
}
cb(null, {
source: 'file at ' + file + '@' + id,
package: pkg,
deps: { './bar': files.bar }
});
}
});
p.end({ id: 'foo', file: files.foo, entry: false });
var rows = [];
p.on('data', function (row) { rows.push(row) });
p.on('end', function () {
t.same(rows.sort(cmp), [
{
id: files.bar,
file: files.bar,
source: fs.readFileSync(files.bar, 'utf8'),
deps: {}
},
{
id: 'foo',
file: files.foo,
source: 'file at ' + files.foo + '@' + files.foo,
deps: { './bar': files.bar }
}
].sort(cmp));
});
});
test('passes persistent cache error through', function (t) {
t.plan(1);
var p = parser({
persistentCache: function (file, id, pkg, fallback, cb) {
cb(new Error('foo'));
}
});
p.end({ id: 'foo', file: files.foo, entry: false });
p.on('error', function (err) { t.equals(err.message, 'foo') });
});
test('allow passing of the raw source as string', function (t) {
t.plan(1);
var p = parser({
persistentCache: function (file, id, pkg, fallback, cb) {
fallback(fs.readFileSync(files.bar, 'utf8'), cb);
}
});
p.end({ id: 'foo', file: files.foo, entry: false });
var rows = [];
p.on('data', function (row) { rows.push(row) });
p.on('end', function () {
t.same(rows.sort(cmp), [
{
id: 'foo',
file: files.foo,
source: fs.readFileSync(files.bar, 'utf8'),
deps: {}
}
].sort(cmp));
});
});
test('send file event with persistent cache', function (t) {
t.plan(2);
var p = parser({
persistentCache: function (file, id, pkg, fallback, cb) {
cb(null, {
source: 'file at ' + file + '@' + id,
package: pkg,
deps: {}
});
}
});
p.end({ id: 'foo', file: files.foo, entry: false });
p.on('file', function (file, id) {
t.same(file, path.resolve(files.foo));
t.same(id, path.resolve(files.foo));
});
});
test('errors of transforms occur in the correct order with a persistent cache', function (t) {
t.plan(3);
var p = parser({
transform: [
path.join(__dirname, 'cache_persistent', 'error_transform')
],
persistentCache: function (file, id, pkg, fallback, cb) {
fallback(fs.readFileSync(files.foo, 'utf8'), cb);
}
});
p.end({ id: 'foo', file: files.foo, entry: false });
var order = 0;
p.on('file', function (file, id) {
t.same(order, 0);
order += 1;
});
p.on('error', function (err) {
t.same(order, 1);
t.same(err.message, 'rawr while parsing file: ' + path.resolve(files.foo));
});
});
function cmp (a, b) { return a.id < b.id ? -1 : 1 }