diff --git a/tools/aconfig/tests/AconfigTest.java b/tools/aconfig/tests/AconfigTest.java
index 317289d..79b5a55 100644
--- a/tools/aconfig/tests/AconfigTest.java
+++ b/tools/aconfig/tests/AconfigTest.java
@@ -1,9 +1,11 @@
 import static com.android.aconfig.test.Flags.FLAG_DISABLED_RO;
 import static com.android.aconfig.test.Flags.FLAG_DISABLED_RW;
+import static com.android.aconfig.test.Flags.FLAG_ENABLED_FIXED_RO;
 import static com.android.aconfig.test.Flags.FLAG_ENABLED_RO;
 import static com.android.aconfig.test.Flags.FLAG_ENABLED_RW;
 import static com.android.aconfig.test.Flags.disabledRo;
 import static com.android.aconfig.test.Flags.disabledRw;
+import static com.android.aconfig.test.Flags.enabledFixedRo;
 import static com.android.aconfig.test.Flags.enabledRo;
 import static com.android.aconfig.test.Flags.enabledRw;
 import static org.junit.Assert.assertEquals;
@@ -35,6 +37,14 @@
     }
 
     @Test
+    public void testEnabledFixedReadOnlyFlag() {
+        assertEquals("com.android.aconfig.test.enabled_fixed_ro", FLAG_ENABLED_FIXED_RO);
+        // TODO: change to assertTrue(enabledFixedRo()) when the build supports reading tests/*.values
+        // (currently all flags are assigned the default READ_ONLY + DISABLED)
+        assertFalse(enabledFixedRo());
+    }
+
+    @Test
     public void testDisabledReadWriteFlag() {
         assertEquals("com.android.aconfig.test.enabled_ro", FLAG_ENABLED_RO);
         assertFalse(disabledRw());
diff --git a/tools/aconfig/tests/first.values b/tools/aconfig/tests/first.values
index e524404..a450f78 100644
--- a/tools/aconfig/tests/first.values
+++ b/tools/aconfig/tests/first.values
@@ -16,3 +16,9 @@
     state: ENABLED
     permission: READ_WRITE
 }
+flag_value {
+    package: "com.android.aconfig.test"
+    name: "enabled_fixed_ro"
+    state: ENABLED
+    permission: READ_ONLY
+}
diff --git a/tools/aconfig/tests/test.aconfig b/tools/aconfig/tests/test.aconfig
index 46cf1e9..aaa6df5 100644
--- a/tools/aconfig/tests/test.aconfig
+++ b/tools/aconfig/tests/test.aconfig
@@ -40,3 +40,14 @@
     description: "This flag is DISABLED + READ_WRITE"
     bug: "456"
 }
+
+# This flag's final value calculated from:
+# - test.aconfig: DISABLED + READ_ONLY
+# - first.values: ENABLED + READ_ONLY
+flag {
+    name: "enabled_fixed_ro"
+    namespace: "aconfig_test"
+    description: "This flag is fixed READ_ONLY + ENABLED"
+    bug: ""
+    is_fixed_read_only: true
+}