full site update

node_modules/restructure/test/DecodeStream.js

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+import {DecodeStream} from 'restructure';
+import assert from 'assert';
+
+describe('DecodeStream', function() {
+  it('should read a buffer', function() {
+    const buf = new Uint8Array([1,2,3]);
+    const stream = new DecodeStream(buf);
+    assert.deepEqual(stream.readBuffer(buf.length), new Uint8Array([1,2,3]));
+  });
+
+  it('should readUInt16BE', function() {
+    const buf = new Uint8Array([0xab, 0xcd]);
+    const stream = new DecodeStream(buf);
+    assert.deepEqual(stream.readUInt16BE(), 0xabcd);
+  });
+
+  it('should readUInt16LE', function() {
+    const buf = new Uint8Array([0xab, 0xcd]);
+    const stream = new DecodeStream(buf);
+    assert.deepEqual(stream.readUInt16LE(), 0xcdab);
+  });
+
+  it('should readUInt24BE', function() {
+    const buf = new Uint8Array([0xab, 0xcd, 0xef]);
+    const stream = new DecodeStream(buf);
+    assert.deepEqual(stream.readUInt24BE(), 0xabcdef);
+  });
+
+  it('should readUInt24LE', function() {
+    const buf = new Uint8Array([0xab, 0xcd, 0xef]);
+    const stream = new DecodeStream(buf);
+    assert.deepEqual(stream.readUInt24LE(), 0xefcdab);
+  });
+
+  it('should readInt24BE', function() {
+    const buf = new Uint8Array([0xff, 0xab, 0x24]);
+    const stream = new DecodeStream(buf);
+    assert.deepEqual(stream.readInt24BE(), -21724);
+  });
+
+  it('should readInt24LE', function() {
+    const buf = new Uint8Array([0x24, 0xab, 0xff]);
+    const stream = new DecodeStream(buf);
+    assert.deepEqual(stream.readInt24LE(), -21724);
+  });
+
+  describe('readString', function() {
+    it('should decode ascii by default', function() {
+      const buf = Buffer.from('some text', 'ascii');
+      const stream = new DecodeStream(buf);
+      assert.equal(stream.readString(buf.length), 'some text');
+    });
+
+    it('should decode ascii', function() {
+      const buf = Buffer.from('some text', 'ascii');
+      const stream = new DecodeStream(buf);
+      assert.equal(stream.readString(buf.length, 'ascii'), 'some text');
+    });
+
+    it('should decode utf8', function() {
+      const buf = Buffer.from('unicode! 👍', 'utf8');
+      const stream = new DecodeStream(buf);
+      assert.equal(stream.readString(buf.length, 'utf8'), 'unicode! 👍');
+    });
+
+    it('should decode utf16le', function() {
+      const buf = Buffer.from('unicode! 👍', 'utf16le');
+      const stream = new DecodeStream(buf);
+      assert.equal(stream.readString(buf.length, 'utf16le'), 'unicode! 👍');
+    });
+
+    it('should decode ucs2', function() {
+      const buf = Buffer.from('unicode! 👍', 'ucs2');
+      const stream = new DecodeStream(buf);
+      assert.equal(stream.readString(buf.length, 'ucs2'), 'unicode! 👍');
+    });
+
+    it('should decode utf16be', function() {
+      const buf = Buffer.from('unicode! 👍', 'utf16le');
+      for (let i = 0, end = buf.length - 1; i < end; i += 2) {
+        const byte = buf[i];
+        buf[i] = buf[i + 1];
+        buf[i + 1] = byte;
+      }
+
+      const stream = new DecodeStream(buf);
+      assert.equal(stream.readString(buf.length, 'utf16be'), 'unicode! 👍');
+    });
+
+    it('should decode macroman', function() {
+      const buf = new Uint8Array([0x8a, 0x63, 0x63, 0x65, 0x6e, 0x74, 0x65, 0x64, 0x20, 0x63, 0x68, 0x87, 0x72, 0x61, 0x63, 0x74, 0x65, 0x72, 0x73]);
+      const stream = new DecodeStream(buf);
+      assert.equal(stream.readString(buf.length, 'mac'), 'äccented cháracters');
+    });
+
+    it('should return a buffer for unsupported encodings', function() {
+      const stream = new DecodeStream(new Uint8Array([1, 2, 3]));
+      assert.deepEqual(stream.readString(3, 'unsupported'), new Uint8Array([1, 2, 3]));
+  });
+});
+});