Change filenames for easy diff

test/bufferutils.spec.ts

@@ -0,0 +1,49 @@
+const { describe, it } = require('mocha')
+const assert = require('assert')
+const bufferutils = require('../src/bufferutils')
+
+const fixtures = require('./fixtures/bufferutils.json')
+
+describe('bufferutils', () => {
+  describe('readUInt64LE', () => {
+    fixtures.valid.forEach(f => {
+      it('decodes ' + f.hex, () => {
+        const buffer = Buffer.from(f.hex, 'hex')
+        const number = bufferutils.readUInt64LE(buffer, 0)
+
+        assert.strictEqual(number, f.dec)
+      })
+    })
+
+    fixtures.invalid.readUInt64LE.forEach(f => {
+      it('throws on ' + f.description, () => {
+        const buffer = Buffer.from(f.hex, 'hex')
+
+        assert.throws(() => {
+          bufferutils.readUInt64LE(buffer, 0)
+        }, new RegExp(f.exception))
+      })
+    })
+  })
+
+  describe('writeUInt64LE', () => {
+    fixtures.valid.forEach(f => {
+      it('encodes ' + f.dec, () => {
+        const buffer = Buffer.alloc(8, 0)
+
+        bufferutils.writeUInt64LE(buffer, f.dec, 0)
+        assert.strictEqual(buffer.toString('hex'), f.hex)
+      })
+    })
+
+    fixtures.invalid.readUInt64LE.forEach(f => {
+      it('throws on ' + f.description, () => {
+        const buffer = Buffer.alloc(8, 0)
+
+        assert.throws(() => {
+          bufferutils.writeUInt64LE(buffer, f.dec, 0)
+        }, new RegExp(f.exception))
+      })
+    })
+  })
+})