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/PacaDeepLinkGateTests.cs

@@ -0,0 +1,86 @@
+using System;
+using Paca.Mobile.Core;
+using Xunit;
+
+namespace Paca.Tests.Core;
+
+public class PacaDeepLinkGateTests
+{
+    [Fact]
+    public void Gate215_PacaDeepLinkParser_ParsesDownloadAction_WithValidParameters()
+    {
+        // Arrange
+        var uri = "paca://download?url=https%3A%2F%2Fexample.com%2Fvideo%2F123&format=mp4&quality=1080p";
+
+        // Act
+        var success = PacaDeepLinkParser.TryParse(uri, out var action);
+
+        // Assert
+        Assert.True(success);
+        Assert.NotNull(action);
+        Assert.Equal(PacaDeepLinkActionType.Download, action!.ActionType);
+        
+        var downloadAction = Assert.IsType<PacaDownloadDeepLinkAction>(action);
+        Assert.Equal("https://example.com/video/123", downloadAction.TargetUrl);
+        Assert.Equal("mp4", downloadAction.Format);
+        Assert.Equal("1080p", downloadAction.Quality);
+    }
+
+    [Fact]
+    public void Gate216_PacaDeepLinkParser_ParsesPairingAction_WithConnectCode()
+    {
+        // Arrange
+        var uri = "paca://pair?code=PACA-982341&host=192.168.1.100&port=5000";
+
+        // Act
+        var success = PacaDeepLinkParser.TryParse(uri, out var action);
+
+        // Assert
+        Assert.True(success);
+        Assert.NotNull(action);
+        Assert.Equal(PacaDeepLinkActionType.Pair, action!.ActionType);
+
+        var pairAction = Assert.IsType<PacaPairDeepLinkAction>(action);
+        Assert.Equal("PACA-982341", pairAction.ConnectCode);
+        Assert.Equal("192.168.1.100", pairAction.Host);
+        Assert.Equal(5000, pairAction.Port);
+    }
+
+    [Fact]
+    public void Gate217_PacaDeepLinkParser_ParsesPlaybackAction_WithSeekTime()
+    {
+        // Arrange
+        var uri = "paca://play?id=media-abc-123&t=145";
+
+        // Act
+        var success = PacaDeepLinkParser.TryParse(uri, out var action);
+
+        // Assert
+        Assert.True(success);
+        Assert.NotNull(action);
+        Assert.Equal(PacaDeepLinkActionType.Play, action!.ActionType);
+
+        var playAction = Assert.IsType<PacaPlayDeepLinkAction>(action);
+        Assert.Equal("media-abc-123", playAction.MediaId);
+        Assert.Equal(145, playAction.SeekSeconds);
+    }
+
+    [Fact]
+    public void Gate218_PacaDeepLinkParser_RejectsMaliciousOrInvalidSchemes()
+    {
+        // 1. Invalid scheme
+        Assert.False(PacaDeepLinkParser.TryParse("https://example.com/download", out _));
+        Assert.False(PacaDeepLinkParser.TryParse("javascript:alert(1)", out _));
+
+        // 2. Local file exploit attempt inside download URL
+        Assert.False(PacaDeepLinkParser.TryParse("paca://download?url=file%3A%2F%2F%2FC%3A%2Fsecret.txt", out _));
+
+        // 3. Unknown or dangerous action
+        Assert.False(PacaDeepLinkParser.TryParse("paca://system?cmd=shutdown", out _));
+        Assert.False(PacaDeepLinkParser.TryParse("paca://invalid_action", out _));
+
+        // 4. Null or empty
+        Assert.False(PacaDeepLinkParser.TryParse("", out _));
+        Assert.False(PacaDeepLinkParser.TryParse(null!, out _));
+    }
+}