lib/tests: Add tests for magic control blocks nesting

Cc: Petri Latvala <petri.latvala@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>

3 files changed, 267 insertions, 0 deletions

diff --git a/lib/tests/igt_nesting.c b/lib/tests/igt_nesting.c
new file mode 100644
index 00000000..de674b6b
--- /dev/null
+++ b/lib/tests/igt_nesting.c
@@ -0,0 +1,261 @@
+/*
+ * Copyright © 2020 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#include "igt_core.h"
+#include "igt_tests_common.h"
+#include "drmtest.h"
+
+char test[] = "test";
+char *fake_argv[] = { test };
+int fake_argc = ARRAY_SIZE(fake_argv);
+
+static void all_valid_simple_test(void)
+{
+	igt_simple_init(fake_argc, fake_argv);
+
+	igt_skip("o:");
+	igt_assert(false);
+
+	igt_exit();
+}
+
+static void all_valid(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_fixture {
+	}
+
+	igt_subtest_group {
+		igt_subtest_group {
+		}
+
+		igt_fixture {
+		}
+
+		igt_subtest("a")
+		{
+			igt_skip("o:\n");
+		}
+
+		igt_subtest("b")
+		{
+			igt_assert(false);
+		}
+
+		igt_subtest_with_dynamic("c") {
+			igt_dynamic("d")
+			{
+				igt_skip("o:\n");
+			}
+
+			igt_dynamic("e")
+			{
+				igt_assert(false);
+			}
+		}
+
+		igt_subtest_with_dynamic("f") {
+			igt_skip("o:\n");
+		}
+
+		igt_subtest_with_dynamic("g") {
+		}
+	}
+
+	igt_exit();
+}
+
+static void invalid_subtest_in_simple_test(void)
+{
+	igt_simple_init(fake_argc, fake_argv);
+
+	igt_subtest("a") {
+	}
+
+	igt_exit();
+}
+
+static void invalid_subtest_group_in_simple_test(void)
+{
+	igt_simple_init(fake_argc, fake_argv);
+
+	igt_subtest_group {
+	}
+
+	igt_exit();
+}
+
+static void invalid_subtest_with_dynamic_in_simple_test(void)
+{
+	igt_simple_init(fake_argc, fake_argv);
+
+	igt_subtest_with_dynamic("a") {
+	}
+
+	igt_exit();
+}
+
+static void invalid_dynamic_in_simple_test(void)
+{
+	igt_simple_init(fake_argc, fake_argv);
+
+	igt_dynamic("a") {
+	}
+
+	igt_exit();
+}
+
+static void invalid_fixture_in_fixture(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_fixture {
+		igt_fixture {
+		}
+	}
+
+	igt_exit();
+}
+
+static void invalid_subtest_in_subtest(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_subtest("a") {
+		igt_subtest("b") {
+		}
+	}
+
+	igt_exit();
+}
+
+static void invalid_top_level_dynamic(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_dynamic("a") {
+	}
+
+	igt_exit();
+}
+
+static void invalid_dynamic_in_regular_subtest(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_subtest("a") {
+		igt_dynamic("b") {
+		}
+	}
+
+	igt_exit();
+}
+
+static void invalid_fixture_in_subtest(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_subtest("a") {
+		igt_fixture {
+		}
+	}
+
+	igt_exit();
+}
+
+static void invalid_top_level_skip(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_skip("o:\n");
+
+	igt_exit();
+}
+
+static void invalid_top_level_assert(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_assert(false);
+
+	igt_exit();
+}
+
+static void invalid_dynamic_in_dynamic(void)
+{
+	igt_subtest_init(fake_argc, fake_argv);
+
+	igt_subtest_with_dynamic("a") {
+		igt_dynamic("b") {
+			igt_dynamic("c") {
+			}
+		}
+	}
+
+	igt_exit();
+}
+
+typedef void (*fork_fun)(void);
+
+int main(int argc, char **argv)
+{
+	int status;
+
+	/* test the invalid nesting scenarios */ {
+		fork_fun should_sigabort[] = {
+			invalid_subtest_in_simple_test,
+			invalid_subtest_group_in_simple_test,
+			invalid_subtest_with_dynamic_in_simple_test,
+			invalid_dynamic_in_simple_test,
+			invalid_fixture_in_fixture,
+			invalid_subtest_in_subtest,
+			invalid_top_level_dynamic,
+			invalid_dynamic_in_regular_subtest,
+			invalid_fixture_in_subtest,
+			invalid_top_level_skip,
+			invalid_top_level_assert,
+			invalid_dynamic_in_dynamic,
+		};
+
+		for (int i = 0; i < ARRAY_SIZE(should_sigabort); ++i) {
+			status = do_fork(should_sigabort[i]);
+			internal_assert_wsignaled(status, SIGABRT);
+		}
+	}
+
+	/* test the valid nesting scenarios */ {
+		fork_fun should_not_signal[] = {
+			all_valid_simple_test,
+			all_valid,
+		};
+
+		for (int i = 0; i < ARRAY_SIZE(should_not_signal); ++i) {
+			status = do_fork(should_not_signal[i]);
+			internal_assert_not_wsignaled(status);
+		}
+	}
+
+	return 0;
+}
diff --git a/lib/tests/igt_tests_common.h b/lib/tests/igt_tests_common.h
index f285d657..fa8ad920 100644
--- a/lib/tests/igt_tests_common.h
+++ b/lib/tests/igt_tests_common.h
@@ -51,6 +51,11 @@ static inline void internal_assert_wsignaled(int wstatus, int signal)
 			WTERMSIG(wstatus) == signal);
 }
 
+static inline void internal_assert_not_wsignaled(int wstatus)
+{
+	internal_assert(!WIFSIGNALED(wstatus));
+}
+
 static inline int do_fork(void (*test_to_run)(void))
 {
 	int pid, status;
diff --git a/lib/tests/meson.build b/lib/tests/meson.build
index 22aa19da..47ef303a 100644
--- a/lib/tests/meson.build
+++ b/lib/tests/meson.build
@@ -12,6 +12,7 @@ lib_tests = [
 	'igt_fork_helper',
 	'igt_list_only',
 	'igt_invalid_subtest_name',
+	'igt_nesting',
 	'igt_no_exit',
 	'igt_segfault',
 	'igt_simulation',