From ec81c918d5677ee78ab61ef9af7559280251724b Mon Sep 17 00:00:00 2001
From: Songchun Fan <schfan@google.com>
Date: Mon, 30 Jan 2023 15:12:41 -0800
Subject: [PATCH] [pm] clarify error message for INSTALL_FAILED_TEST_ONLY

BUG: 231368794
Test: builds
Change-Id: If123588b581ae29da7f8cea9500824a0d62d39cb
---
 .../core/java/com/android/server/pm/InstallPackageHelper.java  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/services/core/java/com/android/server/pm/InstallPackageHelper.java b/services/core/java/com/android/server/pm/InstallPackageHelper.java
index 5ba75a514fc7e..ab77bea4cd656 100644
--- a/services/core/java/com/android/server/pm/InstallPackageHelper.java
+++ b/services/core/java/com/android/server/pm/InstallPackageHelper.java
@@ -1171,7 +1171,8 @@ final class InstallPackageHelper {
         request.setName(pkgName);
         if (parsedPackage.isTestOnly()) {
             if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
-                throw new PrepareFailure(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
+                throw new PrepareFailure(INSTALL_FAILED_TEST_ONLY,
+                        "Failed to install test-only apk. Did you forget to add -t?");
             }
         }