Fix android_test install path.

Test: m nothing + diff soong mk and ninja files.
Bug: 140795853
Change-Id: I3667eac951dea7e447cf73219ff89199fca9ed63
diff --git a/java/app.go b/java/app.go
index afddb6a..014ead4 100644
--- a/java/app.go
+++ b/java/app.go
@@ -126,6 +126,8 @@
 	// the install APK name is normally the same as the module name, but can be overridden with PRODUCT_PACKAGE_NAME_OVERRIDES.
 	installApkName string
 
+	installDir android.OutputPath
+
 	additionalAaptFlags []string
 
 	noticeOutputs android.NoticeOutputs
@@ -319,7 +321,6 @@
 	} else {
 		installDir = filepath.Join("app", a.installApkName)
 	}
-
 	a.dexpreopter.installPath = android.PathForModuleInstall(ctx, installDir, a.installApkName+".apk")
 	a.dexpreopter.isInstallable = Bool(a.properties.Installable)
 	a.dexpreopter.uncompressedDex = a.shouldUncompressDex(ctx)
@@ -352,7 +353,7 @@
 	return jniJarFile
 }
 
-func (a *AndroidApp) noticeBuildActions(ctx android.ModuleContext, installDir android.OutputPath) {
+func (a *AndroidApp) noticeBuildActions(ctx android.ModuleContext) {
 	// Collect NOTICE files from all dependencies.
 	seenModules := make(map[android.Module]bool)
 	noticePathSet := make(map[android.Path]bool)
@@ -392,7 +393,7 @@
 		return noticePaths[i].String() < noticePaths[j].String()
 	})
 
-	a.noticeOutputs = android.BuildNoticeOutput(ctx, installDir, a.installApkName+".apk", noticePaths)
+	a.noticeOutputs = android.BuildNoticeOutput(ctx, a.installDir, a.installApkName+".apk", noticePaths)
 }
 
 // Reads and prepends a main cert from the default cert dir if it hasn't been set already, i.e. it
@@ -438,17 +439,18 @@
 	// Check if the install APK name needs to be overridden.
 	a.installApkName = ctx.DeviceConfig().OverridePackageNameFor(a.Name())
 
-	var installDir android.OutputPath
 	if ctx.ModuleName() == "framework-res" {
 		// framework-res.apk is installed as system/framework/framework-res.apk
-		installDir = android.PathForModuleInstall(ctx, "framework")
+		a.installDir = android.PathForModuleInstall(ctx, "framework")
 	} else if Bool(a.appProperties.Privileged) {
-		installDir = android.PathForModuleInstall(ctx, "priv-app", a.installApkName)
+		a.installDir = android.PathForModuleInstall(ctx, "priv-app", a.installApkName)
+	} else if ctx.InstallInTestcases() {
+		a.installDir = android.PathForModuleInstall(ctx, a.installApkName)
 	} else {
-		installDir = android.PathForModuleInstall(ctx, "app", a.installApkName)
+		a.installDir = android.PathForModuleInstall(ctx, "app", a.installApkName)
 	}
 
-	a.noticeBuildActions(ctx, installDir)
+	a.noticeBuildActions(ctx)
 	if Bool(a.appProperties.Embed_notices) || ctx.Config().IsEnvTrue("ALWAYS_EMBED_NOTICES") {
 		a.aapt.noticeFile = a.noticeOutputs.HtmlGzOutput
 	}
@@ -494,9 +496,9 @@
 	a.bundleFile = bundleFile
 
 	// Install the app package.
-	ctx.InstallFile(installDir, a.installApkName+".apk", a.outputFile)
+	ctx.InstallFile(a.installDir, a.installApkName+".apk", a.outputFile)
 	for _, split := range a.aapt.splits {
-		ctx.InstallFile(installDir, a.installApkName+"_"+split.suffix+".apk", split.path)
+		ctx.InstallFile(a.installDir, a.installApkName+"_"+split.suffix+".apk", split.path)
 	}
 }
 
@@ -598,6 +600,10 @@
 	data       android.Paths
 }
 
+func (a *AndroidTest) InstallInTestcases() bool {
+	return true
+}
+
 func (a *AndroidTest) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	// Check if the instrumentation target package is overridden before generating build actions.
 	if a.appTestProperties.Instrumentation_for != nil {