Tests for READ_EXTERNAL permission.

Verify that app with no permissions is allowed (and blocked) from
reading external storage.  Verify that app with only WRITE_EXTERNAL
is always able to read/write.

Bug: 6315473
Change-Id: I53483110c2d296c53350b48d38967b0bf3f38148
diff --git a/CtsTestCaseList.mk b/CtsTestCaseList.mk
index 2feb76b..e525c7c 100644
--- a/CtsTestCaseList.mk
+++ b/CtsTestCaseList.mk
@@ -15,6 +15,7 @@
 cts_security_apps_list := \
 	CtsAppAccessData \
 	CtsAppWithData \
+	CtsExternalStorageApp \
 	CtsInstrumentationAppDiffCert \
 	CtsPermissionDeclareApp \
 	CtsSharedUidInstall \
@@ -22,7 +23,8 @@
 	CtsSimpleAppInstall \
 	CtsSimpleAppInstallDiffCert \
 	CtsTargetInstrumentationApp \
-	CtsUsePermissionDiffCert
+	CtsUsePermissionDiffCert \
+	CtsWriteExternalStorageApp
 
 cts_support_packages := \
 	CtsAccelerationTestStubs \