[PATCH libgpiod 7/7] tests: add a test case for checking invalid lines

[Bartosz Golaszewski <brgl@bgdev.pl>]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add a test case for validating kernel's behavior when user-space tries
to request an invalid GPIO line.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 tests/harness/gpiod-test.c |  4 ++--
 tests/tests-kernel-uapi.c  | 29 +++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/tests/harness/gpiod-test.c b/tests/harness/gpiod-test.c
index 4e65ae2d260a0339f881ed7dfe0281b834095588..7fafc030c3712decc3271c72aa8ab789871f764e 100644
--- a/tests/harness/gpiod-test.c
+++ b/tests/harness/gpiod-test.c
@@ -10,8 +10,8 @@
 
 #include "gpiod-test.h"
 
-#define MIN_KERNEL_MAJOR	5
-#define MIN_KERNEL_MINOR	19
+#define MIN_KERNEL_MAJOR	6
+#define MIN_KERNEL_MINOR	17
 #define MIN_KERNEL_RELEASE	0
 #define MIN_KERNEL_VERSION	KERNEL_VERSION(MIN_KERNEL_MAJOR, \
 					       MIN_KERNEL_MINOR, \
diff --git a/tests/tests-kernel-uapi.c b/tests/tests-kernel-uapi.c
index 5955fac59717bb5181e7b6d11ee996b4fb24f588..65f9c50f7e5a0f9186343cec5209c87371ee713d 100644
--- a/tests/tests-kernel-uapi.c
+++ b/tests/tests-kernel-uapi.c
@@ -197,3 +197,32 @@ GPIOD_TEST_CASE(open_source_emulation)
 	g_assert_cmpint(gpiod_line_info_get_drive(info), ==,
 			GPIOD_LINE_DRIVE_OPEN_SOURCE);
 }
+
+GPIOD_TEST_CASE(valid_lines)
+{
+	static const guint invalid_lines[] = { 2, 4 };
+
+	g_autoptr(GPIOSimChip) sim = NULL;
+	g_autoptr(struct_gpiod_chip) chip = NULL;
+	g_autoptr(struct_gpiod_line_info) info0 = NULL;
+	g_autoptr(struct_gpiod_line_info) info1 = NULL;
+	g_autoptr(GVariant) vinval = NULL;
+
+	vinval = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+					   invalid_lines, 2, sizeof(guint));
+	g_variant_ref_sink(vinval);
+
+	sim = g_gpiosim_chip_new("num-lines", 8,
+				 "invalid-lines", vinval,
+				 NULL);
+
+	chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
+	info0 = gpiod_chip_get_line_info(chip, 0);
+	info1 = gpiod_chip_get_line_info(chip, 2);
+	g_assert_nonnull(info0);
+	g_assert_nonnull(info1);
+	gpiod_test_return_if_failed();
+
+	g_assert_false(gpiod_line_info_is_used(info0));
+	g_assert_true(gpiod_line_info_is_used(info1));
+}

-- 
2.48.1