tests: Add overlay tests

Add a number of tests for dynamic objects/overlays.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

tests/overlay_base_fixups.dts

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2016 Konsulko Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/dts-v1/;
+
+/ {
+	test: test-node {
+		test-int-property = <42>;
+		test-str-property = "foo";
+
+		subtest: sub-test-node {
+			sub-test-property;
+		};
+	};
+
+	ref {
+		local-ref = <&test &subtest>;
+	};
+};

tests/overlay_overlay_dtc.dts

@@ -1,6 +1,7 @@
 /*
  * Copyright (c) 2016 NextThing Co
  * Copyright (c) 2016 Free Electrons
+ * Copyright (c) 2016 Konsulko Inc.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

tests/overlay_overlay_simple.dts

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2016 Konsulko Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/dts-v1/;
+/plugin/;
+
+&test {
+	test-int-property = <43>;
+};

tests/run_tests.sh

@@ -181,6 +181,35 @@ overlay_tests () {
         run_dtc_test -@ -I dts -O dtb -o overlay_base_with_symbols.test.dtb overlay_base.dts
         run_dtc_test -@ -I dts -O dtb -o overlay_overlay_with_symbols.test.dtb overlay_overlay_dtc.dts
         run_test overlay overlay_base_with_symbols.test.dtb overlay_overlay_with_symbols.test.dtb
+
+        # Test symbols/fixups existence
+        run_test check_path overlay_overlay_with_symbols.test.dtb exists "/__symbols__"
+        run_test check_path overlay_overlay_with_symbols.test.dtb exists "/__fixups__"
+        run_test check_path overlay_overlay_with_symbols.test.dtb exists "/__local_fixups__"
+
+        # test plugin source to dtb and back
+        run_dtc_test -@ -I dtb -O dts -o overlay_overlay_dtc.test.dts overlay_overlay_with_symbols.test.dtb
+        run_dtc_test -@ -I dts -O dtb -o overlay_overlay_with_symbols.test.test.dtb overlay_overlay_dtc.test.dts
+        run_test dtbs_equal_ordered overlay_overlay_with_symbols.test.dtb overlay_overlay_with_symbols.test.test.dtb
+
+        # test plugin auto-generation without using -@
+        run_dtc_test -I dts -O dtb -o overlay_overlay_with_symbols_auto.test.dtb overlay_overlay_dtc.dts
+        run_test check_path overlay_overlay_with_symbols_auto.test.dtb exists "/__symbols__"
+        run_test check_path overlay_overlay_with_symbols_auto.test.dtb exists "/__fixups__"
+        run_test check_path overlay_overlay_with_symbols_auto.test.dtb exists "/__local_fixups__"
+
+        # Test suppression of fixups
+        run_dtc_test -@ -I dts -O dtb -o overlay_base_with_symbols_no_fixups.test.dtb overlay_base_fixups.dts
+        run_test check_path overlay_base_with_symbols_no_fixups.test.dtb exists "/__symbols__"
+        run_test check_path overlay_base_with_symbols_no_fixups.test.dtb not-exists "/__fixups__"
+        run_test check_path overlay_base_with_symbols_no_fixups.test.dtb not-exists "/__local_fixups__"
+
+        # Test generation of aliases insted of symbols
+        run_dtc_test -A -I dts -O dtb -o overlay_overlay_with_aliases.dtb overlay_overlay_dtc.dts
+        run_test check_path overlay_overlay_with_aliases.dtb exists "/aliases"
+        run_test check_path overlay_overlay_with_aliases.dtb exists "/__symbols__"
+        run_test check_path overlay_overlay_with_aliases.dtb exists "/__fixups__"
+        run_test check_path overlay_overlay_with_aliases.dtb exists "/__local_fixups__"
     fi
 
     # Bad fixup tests