Spec: Add tests for AdaptativeAudioStream parsing

spec/invidious/videos/adaptative_audio_stream_spec.cr

@@ -0,0 +1,143 @@
+require "../../parsers_helper.cr"
+
+Spectator.describe Invidious::Videos do
+  subject(streams) {
+    described_class.parse_adaptative_formats(load_mock(mock_name))
+  }
+
+  describe ".parse_adaptative_formats" do
+    provided mock_name: "streams/audio_stereo" do
+      expect(streams.size).to eq(2)
+
+      sample_one = streams[0]
+      sample_two = streams[1]
+
+      #
+      # Test 1 / itag 139
+      #
+
+      expect(sample_one).to be_a(Invidious::Videos::AdaptativeAudioStream)
+      sample_one = sample_one.as(Invidious::Videos::AdaptativeAudioStream)
+
+      expect(sample_one.itag).to eq(139)
+      expect(sample_one.label).to eq("low")
+      expect(sample_one.url).to eq("https://rr5---sn-4g5edndl.googlevideo.com/videoplayback")
+
+      expect(sample_one.last_modified).to eq(Time.utc(seconds: 1_677_975_303_i64, nanoseconds: 572_731_000))
+      expect(sample_one.projection_type).to eq(Invidious::Videos::ProjType::Rectangular)
+
+      expect(sample_one).to have_attributes(
+        raw_mime_type: "audio/mp4; codecs=\"mp4a.40.5\"",
+        mime_type: "audio/mp4",
+        codecs: "mp4a.40.5",
+        # Adaptative properties
+        init_range: Invidious::Videos::ByteRange.new(0_u32, 640_u32),
+        index_range: Invidious::Videos::ByteRange.new(641_u32, 2148_u32),
+        # Common properties
+        bitrate: 50_854,
+        bitrate_avg: 48_788,
+        content_length: 7_454_256,
+        # Audio properties
+        audio_quality: Invidious::Videos::AudioQuality::Low,
+        audio_sample_rate: 22_050,
+        audio_channels: 2,
+        audio_loudness_db: -5.01,
+        audio_spatial_type: Invidious::Videos::SpatialType::None
+      )
+
+      #
+      # Test 2 / itag 251 (Note: most properties aren't checked)
+      #
+
+      expect(sample_two).to be_a(Invidious::Videos::AdaptativeAudioStream)
+      sample_two = sample_two.as(Invidious::Videos::AdaptativeAudioStream)
+
+      expect(sample_two.itag).to eq(251)
+      expect(sample_two.label).to eq("medium")
+
+      expect(sample_two).to have_attributes(
+        raw_mime_type: "audio/webm; codecs=\"opus\"",
+        mime_type: "audio/webm",
+        codecs: "opus",
+        # Audio properties
+        audio_quality: Invidious::Videos::AudioQuality::Medium,
+        audio_sample_rate: 48_000,
+        audio_channels: 2,
+        audio_loudness_db: -5.01,
+        audio_spatial_type: Invidious::Videos::SpatialType::None
+      )
+    end
+
+    provided mock_name: "streams/audio_spatial" do
+      expect(streams.size).to eq(2)
+
+      sample_one = streams[0] # Quad
+      sample_two = streams[1] # 5.1
+
+      # Test 1
+
+      expect(sample_one).to be_a(Invidious::Videos::AdaptativeAudioStream)
+      sample_one = sample_one.as(Invidious::Videos::AdaptativeAudioStream)
+
+      expect(sample_one.itag).to eq(327)
+
+      expect(sample_one).to have_attributes(
+        audio_quality: Invidious::Videos::AudioQuality::Medium,
+        audio_sample_rate: 44_100,
+        audio_channels: 6,
+        audio_loudness_db: 0.0,
+        audio_spatial_type: Invidious::Videos::SpatialType::Ambisonics_5_1
+      )
+
+      # Test 2
+
+      expect(sample_two).to be_a(Invidious::Videos::AdaptativeAudioStream)
+      sample_two = sample_two.as(Invidious::Videos::AdaptativeAudioStream)
+
+      expect(sample_two.itag).to eq(338)
+
+      expect(sample_two).to have_attributes(
+        audio_quality: Invidious::Videos::AudioQuality::Medium,
+        audio_sample_rate: 48_000,
+        audio_channels: 4,
+        audio_loudness_db: 0.0,
+        audio_spatial_type: Invidious::Videos::SpatialType::AmbisonicsQuad
+      )
+    end
+
+    provided mock_name: "streams/audio_multi_lang" do
+      expect(streams.size).to eq(8)
+
+      sample_one = streams[1] # English
+      sample_two = streams[4] # hindi
+
+      # Test 1
+
+      expect(sample_one).to be_a(Invidious::Videos::AdaptativeAudioTrackStream)
+      sample_one = sample_one.as(Invidious::Videos::AdaptativeAudioTrackStream)
+
+      expect(sample_one.itag).to eq(249)
+
+      expect(sample_one).to have_attributes(
+        track_id: "en.0",
+        track_name: "English",
+        iso_code: "en",
+        default: true
+      )
+
+      # Test 2
+
+      expect(sample_two).to be_a(Invidious::Videos::AdaptativeAudioTrackStream)
+      sample_two = sample_two.as(Invidious::Videos::AdaptativeAudioTrackStream)
+
+      expect(sample_two.itag).to eq(249)
+
+      expect(sample_two).to have_attributes(
+        track_id: "hi.0",
+        track_name: "Hindi",
+        iso_code: "hi",
+        default: false
+      )
+    end
+  end
+end