diff --git a/java/androidmk.go b/java/androidmk.go
index c606245..d428abd 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -160,6 +160,9 @@
 			entries.SetString("LOCAL_DISABLE_AUTO_GENERATE_TEST_CONFIG", "true")
 		}
 		entries.AddStrings("LOCAL_TEST_MAINLINE_MODULES", j.testProperties.Test_mainline_modules...)
+		if Bool(j.testProperties.Test_options.Unit_test) {
+			entries.SetBool("LOCAL_IS_UNIT_TEST", true)
+		}
 	})
 
 	return entriesList
diff --git a/java/java.go b/java/java.go
index d6dc148..bae8dcf 100644
--- a/java/java.go
+++ b/java/java.go
@@ -2226,6 +2226,9 @@
 type TestOptions struct {
 	// a list of extra test configuration files that should be installed with the module.
 	Extra_test_configs []string `android:"path,arch_variant"`
+
+	// If the test is a hostside(no device required) unittest that shall be run during presubmit check.
+	Unit_test *bool
 }
 
 type testProperties struct {