drm/cmdline-parser: Merge negative tests

Negative tests can be expressed as a single parameterized test case,
which highlights that we're following the same test logic (passing
invalid cmdline and expecting drm_mode_parse_command_line_for_connector
to fail), which improves readability.

v2: s/negative/invalid to be consistent with other testcases in DRM

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20220817211236.252091-1-michal.winiarski@intel.com

1 files changed, 103 insertions, 190 deletions

diff --git a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
index 59b29cdfdd35..3a46c7d6f2aa 100644
--- a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
+++ b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
@@ -109,24 +109,6 @@ static void drm_cmdline_test_force_d_only(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_OFF);
 }
 
-static void drm_cmdline_test_margin_only(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "m";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_interlace_only(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "i";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_res(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -149,42 +131,6 @@ static void drm_cmdline_test_res(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_missing_x(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "x480";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_res_missing_y(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "1024x";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_res_bad_y(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "1024xtest";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_res_missing_y_bpp(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "1024x-24";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_res_vesa(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -274,15 +220,6 @@ static void drm_cmdline_test_res_bpp(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_bad_bpp(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "720x480-test";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_res_refresh(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -306,15 +243,6 @@ static void drm_cmdline_test_res_refresh(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_bad_refresh(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "720x480@refresh";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_res_bpp_refresh(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -411,15 +339,6 @@ static void drm_cmdline_test_res_bpp_refresh_force_off(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_OFF);
 }
 
-static void drm_cmdline_test_res_bpp_refresh_force_on_off(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline =  "720x480-24@60de";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_res_bpp_refresh_force_on(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -563,24 +482,6 @@ static void drm_cmdline_test_res_vesa_margins(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_invalid_mode(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "720x480f";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_res_bpp_wrong_place_mode(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "720x480e-24";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_name(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -608,42 +509,6 @@ static void drm_cmdline_test_name_bpp(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
 }
 
-static void drm_cmdline_test_name_bpp_refresh(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "NTSC-24@60";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_name_refresh(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "NTSC@60";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_name_refresh_wrong_mode(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "NTSC@60m";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_name_refresh_invalid_mode(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "NTSC@60f";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_name_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -762,33 +627,6 @@ static void drm_cmdline_test_rotate_270(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_rotate_multiple(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "720x480,rotate=0,rotate=90";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_rotate_invalid_val(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "720x480,rotate=42";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
-static void drm_cmdline_test_rotate_truncated(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "720x480,rotate=";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_hmirror(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -885,15 +723,6 @@ static void drm_cmdline_test_multiple_options(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_invalid_option(struct kunit *test)
-{
-	struct drm_cmdline_mode mode = { };
-	const char *cmdline = "720x480,test=42";
-
-	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(cmdline,
-									   &no_connector, &mode));
-}
-
 static void drm_cmdline_test_bpp_extra_and_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
@@ -1006,64 +835,148 @@ static void drm_cmdline_test_panel_orientation(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
+struct drm_cmdline_invalid_test {
+	const char *name;
+	const char *cmdline;
+};
+
+static void drm_cmdline_test_invalid(struct kunit *test)
+{
+	const struct drm_cmdline_invalid_test *params = test->param_value;
+	struct drm_cmdline_mode mode = { };
+
+	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(params->cmdline,
+									   &no_connector,
+									   &mode));
+}
+
+static const struct drm_cmdline_invalid_test drm_cmdline_invalid_tests[] = {
+	{
+		.name = "margin_only",
+		.cmdline = "m",
+	},
+	{
+		.name = "interlace_only",
+		.cmdline = "i",
+	},
+	{
+		.name = "res_missing_x",
+		.cmdline = "x480",
+	},
+	{
+		.name = "res_missing_y",
+		.cmdline = "1024x",
+	},
+	{
+		.name = "res_bad_y",
+		.cmdline = "1024xtest",
+	},
+	{
+		.name = "res_missing_y_bpp",
+		.cmdline = "1024x-24",
+	},
+	{
+		.name = "res_bad_bpp",
+		.cmdline = "720x480-test",
+	},
+	{
+		.name = "res_bad_refresh",
+		.cmdline = "720x480@refresh",
+	},
+	{
+		.name = "res_bpp_refresh_force_on_off",
+		.cmdline = "720x480-24@60de",
+	},
+	{
+		.name = "res_invalid_mode",
+		.cmdline = "720x480f",
+	},
+	{
+		.name = "res_bpp_wrong_place_mode",
+		.cmdline = "720x480e-24",
+	},
+	{
+		.name = "name_bpp_refresh",
+		.cmdline = "NTSC-24@60",
+	},
+	{
+		.name = "name_refresh",
+		.cmdline = "NTSC@60",
+	},
+	{
+		.name = "name_refresh_wrong_mode",
+		.cmdline = "NTSC@60m",
+	},
+	{
+		.name = "name_refresh_invalid_mode",
+		.cmdline = "NTSC@60f",
+	},
+	{
+		.name = "rotate_multiple",
+		.cmdline = "720x480,rotate=0,rotate=90",
+	},
+	{
+		.name = "rotate_invalid_val",
+		.cmdline = "720x480,rotate=42",
+	},
+	{
+		.name = "rotate_truncated",
+		.cmdline = "720x480,rotate=",
+	},
+	{
+		.name = "invalid_option",
+		.cmdline = "720x480,test=42",
+	},
+};
+
+static void drm_cmdline_invalid_desc(const struct drm_cmdline_invalid_test *t,
+				     char *desc)
+{
+	sprintf(desc, "%s", t->name);
+}
+
+KUNIT_ARRAY_PARAM(drm_cmdline_invalid, drm_cmdline_invalid_tests, drm_cmdline_invalid_desc);
+
 static struct kunit_case drm_cmdline_parser_tests[] = {
 	KUNIT_CASE(drm_cmdline_test_force_d_only),
 	KUNIT_CASE(drm_cmdline_test_force_D_only_dvi),
 	KUNIT_CASE(drm_cmdline_test_force_D_only_hdmi),
 	KUNIT_CASE(drm_cmdline_test_force_D_only_not_digital),
 	KUNIT_CASE(drm_cmdline_test_force_e_only),
-	KUNIT_CASE(drm_cmdline_test_margin_only),
-	KUNIT_CASE(drm_cmdline_test_interlace_only),
 	KUNIT_CASE(drm_cmdline_test_res),
-	KUNIT_CASE(drm_cmdline_test_res_missing_x),
-	KUNIT_CASE(drm_cmdline_test_res_missing_y),
-	KUNIT_CASE(drm_cmdline_test_res_bad_y),
-	KUNIT_CASE(drm_cmdline_test_res_missing_y_bpp),
 	KUNIT_CASE(drm_cmdline_test_res_vesa),
 	KUNIT_CASE(drm_cmdline_test_res_vesa_rblank),
 	KUNIT_CASE(drm_cmdline_test_res_rblank),
 	KUNIT_CASE(drm_cmdline_test_res_bpp),
-	KUNIT_CASE(drm_cmdline_test_res_bad_bpp),
 	KUNIT_CASE(drm_cmdline_test_res_refresh),
-	KUNIT_CASE(drm_cmdline_test_res_bad_refresh),
 	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh),
 	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_interlaced),
 	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_margins),
 	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_off),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on_off),
 	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on),
 	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on_analog),
 	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on_digital),
 	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_interlaced_margins_force_on),
 	KUNIT_CASE(drm_cmdline_test_res_margins_force_on),
 	KUNIT_CASE(drm_cmdline_test_res_vesa_margins),
-	KUNIT_CASE(drm_cmdline_test_res_invalid_mode),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_wrong_place_mode),
 	KUNIT_CASE(drm_cmdline_test_name),
 	KUNIT_CASE(drm_cmdline_test_name_bpp),
-	KUNIT_CASE(drm_cmdline_test_name_refresh),
-	KUNIT_CASE(drm_cmdline_test_name_bpp_refresh),
-	KUNIT_CASE(drm_cmdline_test_name_refresh_wrong_mode),
-	KUNIT_CASE(drm_cmdline_test_name_refresh_invalid_mode),
 	KUNIT_CASE(drm_cmdline_test_name_option),
 	KUNIT_CASE(drm_cmdline_test_name_bpp_option),
 	KUNIT_CASE(drm_cmdline_test_rotate_0),
 	KUNIT_CASE(drm_cmdline_test_rotate_90),
 	KUNIT_CASE(drm_cmdline_test_rotate_180),
 	KUNIT_CASE(drm_cmdline_test_rotate_270),
-	KUNIT_CASE(drm_cmdline_test_rotate_multiple),
-	KUNIT_CASE(drm_cmdline_test_rotate_invalid_val),
-	KUNIT_CASE(drm_cmdline_test_rotate_truncated),
 	KUNIT_CASE(drm_cmdline_test_hmirror),
 	KUNIT_CASE(drm_cmdline_test_vmirror),
 	KUNIT_CASE(drm_cmdline_test_margin_options),
 	KUNIT_CASE(drm_cmdline_test_multiple_options),
-	KUNIT_CASE(drm_cmdline_test_invalid_option),
 	KUNIT_CASE(drm_cmdline_test_bpp_extra_and_option),
 	KUNIT_CASE(drm_cmdline_test_extra_and_option),
 	KUNIT_CASE(drm_cmdline_test_freestanding_options),
 	KUNIT_CASE(drm_cmdline_test_freestanding_force_e_and_options),
 	KUNIT_CASE(drm_cmdline_test_panel_orientation),
+	KUNIT_CASE_PARAM(drm_cmdline_test_invalid, drm_cmdline_invalid_gen_params),
 	{}
 };