diff --git a/cc/test.go b/cc/test.go
index 1085d3a..f51cf01 100644
--- a/cc/test.go
+++ b/cc/test.go
@@ -29,6 +29,11 @@
 
 	// if set, use the isolated gtest runner. Defaults to false.
 	Isolated *bool
+
+	// List of APEXes that this module tests. The module has access to
+	// the private part of the listed APEXes even when it is not included in the
+	// APEXes.
+	Test_for []string
 }
 
 // Test option struct.
@@ -215,6 +220,10 @@
 	return BoolDefault(test.Properties.Gtest, true)
 }
 
+func (test *testDecorator) testFor() []string {
+	return test.Properties.Test_for
+}
+
 func (test *testDecorator) linkerFlags(ctx ModuleContext, flags Flags) Flags {
 	if !test.gtest() {
 		return flags