Current File : //lib/node_modules/pm2/node_modules/js-git/test/test-pack-codec.js
var bodec = require('bodec');
var run = require('./run.js');
var decoders = require('../lib/object-codec.js').decoders;
var encoders = require('../lib/object-codec.js').encoders;
// The thing we mean to test.
var codec = require('../lib/pack-codec.js');
var pack = require('./sample-pack.js');
var items = [];
var newPack;
function unpackStream(stream) {
var meta, out = [], finished = false;
var write = codec.decodePack(onItem);
for (var i = 0, l = stream.length; i < l; i += 128) {
var slice = bodec.slice(stream, i, i + 128);
try {
// console.log("SLICE", slice);
write(slice);
}
catch (err) {
throw err;
}
}
write();
function onItem(item) {
// console.log("UNPACK", item);
if (item === undefined) {
finished = true;
}
else if (!meta) {
meta = item;
}
else {
out.push(item);
}
}
if (!finished) throw new Error("unpack stream didn't finish");
if (out.length !== meta.num) throw new Error("Item num mismatch");
return out;
}
run([
function testDecodePack() {
var counts = {};
items = unpackStream(pack).map(function (item) {
counts[item.type] = counts[item.type] || 0;
counts[item.type]++;
if (item.type === "tree" || item.type === "tag" || item.type === "commit") {
item.body = decoders[item.type](item.body);
}
return item;
});
if (counts.commit !== 6) throw new Error("Wrong number of commits parsed");
if (counts.tree !== 4) throw new Error("Wrong number of trees parsed");
if (counts.blob !== 4) throw new Error("Wrong number of blobs parsed");
if (counts['ofs-delta'] !== 2) throw new Error("Wrong number of offset deltas parsed");
},
function testEncodePack() {
var done = false;
var outs = [];
var write = codec.encodePack(function (item) {
if (item === undefined) {
done = true;
return;
}
if (!bodec.isBinary(item)) throw new Error("encode output must be buffers");
outs.push(item);
});
write({num:items.length});
items.forEach(function (item) {
if (!bodec.isBinary(item.body)) {
item.body = encoders[item.type](item.body);
}
write(item);
});
write();
if (!done) throw new Error("Output stream never ended");
newPack = bodec.join(outs);
},
function verifyEncodePack() {
try {
unpackStream(newPack);
if (bodec.toHex(pack) !== bodec.toHex(newPack)) {
throw new Error("Final pack doesn't match original.");
}
}
catch (err) {
console.log(bodec.toHex(pack));
console.log(bodec.toHex(newPack));
throw err;
}
}
]);
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