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gaia/apps/music/test/unit/metadata/flac_test.js

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+/* global FLACMetadata, fetchBuffer, makeBlobView, MockLazyLoader,
+          readPicSlice, assertBuffersEqual, pass, fail, suite, setup,
+          teardown, test, assert */
+'use strict';
+
+require('/test/unit/metadata/utils.js');
+require('/js/metadata/flac.js');
+require('/js/metadata/vorbis_picture.js');
+
+suite('flac tags', function() {
+  var RealLazyLoader;
+
+  var expectedPicture;
+  setup(function(done) {
+    RealLazyLoader = window.LazyLoader;
+    window.LazyLoader = MockLazyLoader;
+
+    fetchBuffer('/test-data/album-art.jpg').then(function(buffer) {
+      expectedPicture = buffer;
+      done();
+    });
+  });
+
+  teardown(function() {
+    window.LazyLoader = RealLazyLoader;
+  });
+
+  test('vorbis comment', function(done) {
+    var blob;
+    fetchBuffer('/test-data/vorbis-c.flac')
+      .then(function(buffer) {
+        return (blob = new Blob([buffer]));
+      })
+      .then(makeBlobView)
+      .then(FLACMetadata.parse)
+      .then(function(metadata) {
+        assert.strictEqual(metadata.tag_format, 'flac');
+        assert.strictEqual(metadata.artist, 'Black Sabbath');
+        assert.strictEqual(metadata.album, 'Master of Reality');
+        assert.strictEqual(metadata.title, 'Children of the Grave');
+        assert.strictEqual(metadata.tracknum, 4);
+        assert.strictEqual(metadata.trackcount, 8);
+        assert.strictEqual(metadata.discnum, 1);
+        assert.strictEqual(metadata.disccount, 1);
+        assert.strictEqual(metadata.picture.flavor, 'embedded');
+        assert.strictEqual(metadata.picture.type, 'image/jpeg');
+
+        return readPicSlice(blob, metadata.picture);
+      })
+      .then(function(buffer) {
+        assertBuffersEqual(buffer, expectedPicture);
+      })
+      .then(pass(done), fail(done));
+  });
+});