Add tests related to import symbols (FDT_IMPORT_SYM dtb tag).

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
 tests/metadata_importsyms.dtb.dts.expect |  9 +++++++++
 tests/metadata_importsyms.dtb.expect     |  8 ++++++++
 tests/metadata_importsyms.dts            | 14 ++++++++++++++
 tests/metadata_importsyms.dts.dts.expect |  9 +++++++++
 tests/run_tests.sh                       | 10 +++++-----
 5 files changed, 45 insertions(+), 5 deletions(-)
 create mode 100644 tests/metadata_importsyms.dtb.dts.expect
 create mode 100644 tests/metadata_importsyms.dtb.expect
 create mode 100644 tests/metadata_importsyms.dts
 create mode 100644 tests/metadata_importsyms.dts.dts.expect

diff --git a/tests/metadata_importsyms.dtb.dts.expect b/tests/metadata_importsyms.dtb.dts.expect
new file mode 100644
index 0000000..eabf8c7
--- /dev/null
+++ b/tests/metadata_importsyms.dtb.dts.expect
@@ -0,0 +1,9 @@
+/dts-v1/;
+/addon/;
+
+/import/ base_a: "foo,bar";
+/import/ base_b: "foo,baz";
+
+/ {
+	prop = <0x01>;
+};
diff --git a/tests/metadata_importsyms.dtb.expect b/tests/metadata_importsyms.dtb.expect
new file mode 100644
index 0000000..2177026
--- /dev/null
+++ b/tests/metadata_importsyms.dtb.expect
@@ -0,0 +1,8 @@
+/dts-v1/;
+/addon/;
+
+/ {
+    prop = <0x00000001>;
+};
+// [FDT_IMPORT_SYM] 'base_a' (foo,bar)
+// [FDT_IMPORT_SYM] 'base_b' (foo,baz)
diff --git a/tests/metadata_importsyms.dts b/tests/metadata_importsyms.dts
new file mode 100644
index 0000000..671586d
--- /dev/null
+++ b/tests/metadata_importsyms.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+/*
+ * Copyright (C) 2026 Bootlin
+ */
+
+/dts-v1/;
+/addon/;
+
+/import/ base_a: "foo,bar";
+/import/ base_b: "foo,baz";
+
+/ {
+	prop = <1>;
+};
diff --git a/tests/metadata_importsyms.dts.dts.expect b/tests/metadata_importsyms.dts.dts.expect
new file mode 100644
index 0000000..eabf8c7
--- /dev/null
+++ b/tests/metadata_importsyms.dts.dts.expect
@@ -0,0 +1,9 @@
+/dts-v1/;
+/addon/;
+
+/import/ base_a: "foo,bar";
+/import/ base_b: "foo,baz";
+
+/ {
+	prop = <0x01>;
+};
diff --git a/tests/run_tests.sh b/tests/run_tests.sh
index 1973525..5368db9 100755
--- a/tests/run_tests.sh
+++ b/tests/run_tests.sh
@@ -1127,20 +1127,20 @@ wrap_fdtdump () {
 metadata_tests() {
 	for dt in metadata_reflocal metadata_refphandle \
 		  metadata_addon_base metadata_exportsyms_local \
-		  metadata_exportsyms_ref; do
+		  metadata_exportsyms_ref metadata_importsyms; do
 		run_dtc_test -I dts -O dts -o $dt.dts.dts "$SRCDIR/$dt.dts"
 		base_run_test check_diff $dt.dts.dts "$SRCDIR/$dt.dts.dts.expect"
 		run_dtc_test -I dts -O dtb -o $dt.dtb "$SRCDIR/$dt.dts"
 		base_run_test wrap_fdtdump $dt.dtb $dt.dtb.out
-		# Remove unneeded comments
-		sed -i '/^\/\/ /d' $dt.dtb.out
+		# Remove unneeded comments, keep comments in the form '// [xxxx'
+		sed -i '/^\/\/ [^\[]/d' $dt.dtb.out
 		base_run_test check_diff $dt.dtb.out "$SRCDIR/$dt.dtb.expect"
 		run_dtc_test -I dtb -O dts -o $dt.dtb.dts $dt.dtb
 		base_run_test check_diff $dt.dtb.dts "$SRCDIR/$dt.dtb.dts.expect"
 		run_dtc_test -I dts -O dtb -o $dt.dtb.dts.dtb $dt.dtb.dts
 		base_run_test wrap_fdtdump $dt.dtb.dts.dtb $dt.dtb.dts.dtb.out
-		# Remove unneeded comments
-		sed -i '/^\/\/ /d' $dt.dtb.dts.dtb.out
+		# Remove unneeded comments, keep comments in the form '// [xxxx'
+		sed -i '/^\/\/ [^\[]/d' $dt.dtb.dts.dtb.out
 		base_run_test check_diff $dt.dtb.dts.dtb.out "$SRCDIR/$dt.dtb.expect"
 	done
 
-- 
2.52.0