Add more file checks

Author: dellis1972

src/Xamarin.Android.Build.Tasks/MSBuild/Xamarin/Android/Xamarin.Android.Assets.targets

@@ -26,7 +26,7 @@ Copyright (C) 2011-2012 Xamarin. All rights reserved.
 <!-- Assets build properties -->
 <PropertyGroup>
 		<MonoAndroidAssetsDirIntermediate>$(IntermediateOutputPath)assets\</MonoAndroidAssetsDirIntermediate>
-		<MonoAndroidAssetPacksDirIntermediate>$(IntermediateOutputPath)assetpacks\packs</MonoAndroidAssetPacksDirIntermediate>
+		<MonoAndroidAssetPacksDirIntermediate>$(IntermediateOutputPath)assetpacks</MonoAndroidAssetPacksDirIntermediate>
 		<MonoAndroidAssetsPrefix Condition="'$(MonoAndroidAssetsPrefix)' == ''">Assets</MonoAndroidAssetsPrefix>
 </PropertyGroup>
 

src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/AssetPackTests.cs

@@ -51,6 +51,8 @@ public void BuildApplicationWithAssetPack ([Values (true, false)] bool isRelease
 				// Check the final aab has the required feature files in it.
 				var aab = Path.Combine (Root, appBuilder.ProjectDirectory,
 					app.OutputPath, $"{app.PackageName}.aab");
+				var asset3File = Path.Combine (Root, path, app.ProjectName,
+					app.IntermediateOutputPath, "assetpacks", "assetpack1", "assets", "asset3.txt");
 				using (var zip = ZipHelper.OpenZip (aab)) {
 					Assert.IsTrue (zip.ContainsEntry ("base/assets/asset1.txt"), "aab should contain base/assets/asset1.txt");
 					Assert.IsFalse (zip.ContainsEntry ("base/assets/asset2.txt"), "aab should not contain base/assets/asset2.txt");
@@ -67,14 +69,18 @@ public void BuildApplicationWithAssetPack ([Values (true, false)] bool isRelease
 				appBuilder.Output.AssertTargetIsSkipped ("_CreateAssetPackManifests");
 				appBuilder.Output.AssertTargetIsSkipped ("_BuildAssetPacks");
 				appBuilder.Output.AssertTargetIsSkipped ("_GenerateAndroidAssetsDir");
+				FileAssert.Exists (asset3File, $"file {asset3File} should exist.");
 				asset3.TextContent = () => "Asset3 Updated";
 				asset3.Timestamp = DateTime.UtcNow.AddSeconds(1);
 				Assert.IsTrue (appBuilder.Build (app, doNotCleanupOnUpdate: true, saveProject: false), $"{app.ProjectName} should succeed");
 				appBuilder.Output.AssertTargetIsNotSkipped ("_CreateAssetPackManifests");
 				appBuilder.Output.AssertTargetIsNotSkipped ("_BuildAssetPacks");
 				appBuilder.Output.AssertTargetIsNotSkipped ("_GenerateAndroidAssetsDir");
+				FileAssert.Exists (asset3File, $"file {asset3File} should exist.");
+				Assert.AreEqual (asset3.TextContent (), File.ReadAllText (asset3File), $"Contents of {asset3File} should have been updated.");
 				app.OtherBuildItems.Remove (asset3);
 				Assert.IsTrue (appBuilder.Build (app, doNotCleanupOnUpdate: true), $"{app.ProjectName} should succeed");
+				FileAssert.DoesNotExist (asset3File, $"file {asset3File} should not exist.");
 				using (var zip = ZipHelper.OpenZip (aab)) {
 					Assert.IsTrue (zip.ContainsEntry ("base/assets/asset1.txt"), "aab should contain base/assets/asset1.txt");
 					Assert.IsFalse (zip.ContainsEntry ("base/assets/asset2.txt"), "aab should not contain base/assets/asset2.txt");