tests for outpoint

test/outpoint-test.js

@@ -5,22 +5,113 @@
 const Outpoint = require('../lib/primitives/outpoint');
 const assert = require('./util/assert');
 const common = require('./util/common');
-
+const util = require('../lib/utils/util');
+const TX = require('../lib/primitives/tx');
 const OUTPOINT_SIZE = 36;
-const tx1 = common.readTX('tx1').getRaw();
-const rawOutpoint1 = tx1.slice(5, 5+OUTPOINT_SIZE);
-
-const tx2 = common.readTX('tx2').getRaw();
-const rawOutpoint2 = tx2.slice(5, 5+OUTPOINT_SIZE);
 
+const raw3 = common.readTX('tx2').getRaw();
+const raw4 = common.readTX('tx1').getRaw();
+console.log(TX.fromRaw(raw3).inputs);
 describe('Outpoint', () => {
-  it('should clone the outpoint correctly', () => {
-    const raw = rawOutpoint1.slice();
-    const outpointObject = Outpoint.fromRaw(raw);
-    const clone = outpointObject.clone();
-    const equals = outpointObject.equals(clone);
+  let raw1, raw2, tx1, tx2, out1, out2;
+  beforeEach(() => {
+    tx1 = common.readTX('tx1').getRaw();
+    tx2 = common.readTX('tx3').getRaw();
+    raw1 = tx1.slice(5, 5+OUTPOINT_SIZE);
+    raw2 = tx2.slice(5, 5+OUTPOINT_SIZE);
+    out1 = Outpoint.fromRaw(raw1);
+    out2 = Outpoint.fromRaw(raw2);
+  });
 
-    assert.strictEqual(outpointObject !== clone, true);
+  it('should clone the outpoint correctly', () => {
+    const out1 = Outpoint.fromRaw(raw1);
+    const clone = out1.clone();
+    const equals = out1.equals(clone);
+
+    assert.strictEqual(out1 !== clone, true);
     assert.strictEqual(equals, true);
   });
+
+  it('should create outpoint from options object', () => {
+    const options = {};
+    options.hash = out1.hash;
+    options.index = out1.index;
+
+    const newOut = Outpoint.fromOptions(options);
+    assert(newOut.equals(out1), true);
+  });
+
+  it('should check hash and index are equal', () => {
+    const out1Clone = Outpoint.fromOptions(Object.assign(out1, {}));
+
+    assert(out1.equals(out2) === false, true);
+    assert(out1Clone.hash === out1.hash, out1Clone.equals(out1));
+    assert(out1Clone.index === out1.index, out1Clone.equals(out1));
+  });
+
+  it('should compare the indexes between outpoints', () => {
+    const index1 = out1.index;
+    const index2 = out2.index;
+    assert.equal(out1.compare(out2), index1 - index2);
+  });
+
+  it('should detect if the outpoint is null', () => {
+    const rawHash = '00000000000000000000000000000000000000000000' +
+    '00000000000000000000';
+    const rawIndex = 'ffffffff';
+    const nullOut = Outpoint.fromRaw(Buffer.from(rawHash + rawIndex, 'hex'));
+    assert(nullOut.isNull(), true);
+  });
+
+  it('should retrieve little endian hash', () => {
+    assert.equal(out1.rhash(), util.revHex(out1.hash));
+    assert.equal(out1.txid(), util.revHex(out1.hash));
+  });
+
+  it('should serialize to a key suitable for hash table', () => {
+    const expected = out1.hash + out1.index;
+    const actual = out1.toKey();
+    assert.equal(expected, actual);
+  });
+
+  it('should inject properties from hash table key', () => {
+    const key = out1.hash + out1.index;
+    const fromKey = Outpoint.fromKey(key);
+    assert(out1.equals(fromKey), true);
+  });
+
+  it('should return a size of 36', () => {
+    assert(out1.getSize() === OUTPOINT_SIZE, true);
+  });
+
+  it('should create an outpoint from JSON', () => {
+    const json = {
+      hash: out1.txid(),
+      index: out1.index
+    };
+    const fromJSON = Outpoint.fromJSON(json);
+
+    assert.deepEqual(out1, fromJSON);
+  });
+
+  it('should return an object with reversed hash', () => {
+    const hash = out1.hash;
+    const index = out1.index;
+
+    const expected = {
+      hash: util.revHex(hash),
+      index
+    };
+    assert.deepEqual(expected, out1.toJSON());
+  });
+
+  it('should instantiate an outpoint fron a tx', () => {
+    const inputs = TX.fromRaw(tx1).inputs;
+    const tx = new TX({ inputs });
+    const index = 0;
+    const fromTX = Outpoint.fromTX(tx, index);
+
+    assert.equal(fromTX.hash, tx.hash('hex'));
+    assert.equal(fromTX.index, index);
+  });
 });