[PATCH v2 2/2] tests: Add a test case for the delete-if-unreferenced keyword

[Maxime Ripard <maxime.ripard@xxxxxxxxxxx>]

The newly introduced /delete-if-unreferenced/ needs a few test cases, make
sure to test them.

Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>

---
Changes from v1:
  - Change the node property name to omit-if-no-ref
  - Test for setting it using its label and not only when declaring the
    node
  - Test when referencing by path
---
 tests/omit-no-ref.dts | 26 ++++++++++++++++++++++++++
 tests/run_tests.sh    |  7 +++++++
 2 files changed, 33 insertions(+)
 create mode 100644 tests/omit-no-ref.dts

diff --git a/tests/omit-no-ref.dts b/tests/omit-no-ref.dts
new file mode 100644
index 000000000000..8ace232ecc4d
--- /dev/null
+++ b/tests/omit-no-ref.dts
@@ -0,0 +1,26 @@
+/dts-v1/;
+
+/ {
+	test-phandle = <&node3>;
+	test-path = &node4;
+
+	/omit-if-no-ref/ node1: node1 {
+		bar = <0xdeadbeef>;
+	};
+
+	node2: node2 {
+		foo = <0x42>;
+	};
+
+	node3: node3 {
+		test = "test";
+	};
+
+	node4: node4 {
+		test;
+	};
+};
+
+/omit-if-no-ref/ &node2;
+/omit-if-no-ref/ &node3;
+/omit-if-no-ref/ &node4;
diff --git a/tests/run_tests.sh b/tests/run_tests.sh
index d937260c82ae..670eecac5dd3 100755
--- a/tests/run_tests.sh
+++ b/tests/run_tests.sh
@@ -568,6 +568,13 @@ dtc_tests () {
     run_dtc_test -I dts -O dtb -o dtc_tree1_delete.test.dtb test_tree1_delete.dts
     tree1_tests dtc_tree1_delete.test.dtb
 
+    # Check omit-if-no-ref functionality
+    run_dtc_test -I dts -O dtb -o omit-no-ref.test.dtb omit-no-ref.dts
+    run_test check_path omit-no-ref.test.dtb not-exists "/node1"
+    run_test check_path omit-no-ref.test.dtb not-exists "/node2"
+    run_test check_path omit-no-ref.test.dtb exists "/node3"
+    run_test check_path omit-no-ref.test.dtb exists "/node4"
+
     run_dtc_test -I dts -O dts -o delete_reinstate_multilabel.dts.test.dts delete_reinstate_multilabel.dts
     run_wrap_test cmp delete_reinstate_multilabel.dts.test.dts delete_reinstate_multilabel_ref.dts
 
-- 
2.17.0

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