feat(ads/seo/release): v1.2.0 with live Google Ads, isolated ad profile, ads.txt, and SEO/AEO/GEO optimization

tests/Paca.Tests/Core/HlsManifestValidatorGateTests.cs

@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using Paca.Core;
+using Xunit;
+
+namespace Paca.Tests.Core;
+
+public class HlsManifestValidatorGateTests
+{
+    [Fact]
+    public void Gate441_HlsManifestValidator_DetectsMasterPlaylist_AndVariants()
+    {
+        var manifest = @"#EXTM3U
+#EXT-X-STREAM-INF:BANDWIDTH=2500000,RESOLUTION=1280x720
+720p.m3u8
+#EXT-X-STREAM-INF:BANDWIDTH=5000000,RESOLUTION=1920x1080
+1080p.m3u8";
+
+        var result = HlsManifestValidator.Analyze(manifest);
+
+        Assert.True(result.IsMasterPlaylist);
+        Assert.Equal(2, result.Variants.Count);
+        Assert.Equal(5000000, result.Variants[0].Bandwidth); // highest first
+        Assert.Equal("1080p.m3u8", result.Variants[0].Uri);
+        Assert.Equal("1920x1080", result.Variants[0].Resolution);
+    }
+
+    [Fact]
+    public void Gate442_HlsManifestValidator_ParsesMediaPlaylist_Accurately()
+    {
+        var manifest = @"#EXTM3U
+#EXT-X-TARGETDURATION:10
+#EXTINF:10.0,
+seg1.ts
+#EXTINF:10.0,
+seg2.ts
+#EXTINF:5.5,
+seg3.ts
+#EXT-X-ENDLIST";
+
+        var result = HlsManifestValidator.Analyze(manifest);
+
+        Assert.False(result.IsMasterPlaylist);
+        Assert.True(result.IsVod);
+        Assert.False(result.IsLive);
+        Assert.Equal(3, result.SegmentCount);
+        Assert.Equal(25.5, result.TotalDurationSec, 1);
+    }
+
+    [Fact]
+    public void Gate443_HlsManifestValidator_DetectsDiscontinuities_AndLiveStream()
+    {
+        var manifest = @"#EXTM3U
+#EXT-X-TARGETDURATION:6
+#EXTINF:6.0,
+live1.ts
+#EXT-X-DISCONTINUITY
+#EXTINF:6.0,
+live2.ts";
+
+        var result = HlsManifestValidator.Analyze(manifest);
+
+        Assert.True(result.IsLive);
+        Assert.False(result.IsVod);
+        Assert.Equal(1, result.DiscontinuityCount);
+        Assert.Equal(2, result.SegmentCount);
+    }
+
+    [Fact]
+    public void Gate444_HlsManifestValidator_StripsAdDiscontinuityBlocks()
+    {
+        var manifest = @"#EXTM3U
+#EXTINF:10.0,
+main1.ts
+#EXT-X-DISCONTINUITY
+#EXTINF:15.0,
+ad1.ts
+#EXT-X-DISCONTINUITY
+#EXTINF:10.0,
+main2.ts
+#EXT-X-ENDLIST";
+
+        // Ad duration 15.0s between discontinuities stripped
+        var cleaned = HlsManifestValidator.StripAdBlocks(manifest, maxAdDurationSec: 30.0);
+
+        Assert.Contains("main1.ts", cleaned);
+        Assert.Contains("main2.ts", cleaned);
+        Assert.DoesNotContain("ad1.ts", cleaned);
+    }
+}