1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/comedi/drivers/tests/unittest.h b/drivers/comedi/drivers/tests/unittest.h
new file mode 100644
index 000000000000..2da3beea2479
--- /dev/null
+++ b/drivers/comedi/drivers/tests/unittest.h
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* vim: set ts=8 sw=8 noet tw=80 nowrap: */
+/*
+ *  comedi/drivers/tests/unittest.h
+ *  Simple framework for unittests for comedi drivers.
+ *
+ *  COMEDI - Linux Control and Measurement Device Interface
+ *  Copyright (C) 2016 Spencer E. Olson <olsonse@umich.edu>
+ *  based of parts of drivers/of/unittest.c
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+#ifndef _COMEDI_DRIVERS_TESTS_UNITTEST_H
+#define _COMEDI_DRIVERS_TESTS_UNITTEST_H
+
+static struct unittest_results {
+	int passed;
+	int failed;
+} unittest_results;
+
+typedef void (*unittest_fptr)(void);
+
+#define unittest(result, fmt, ...) ({ \
+	bool failed = !(result); \
+	if (failed) { \
+		++unittest_results.failed; \
+		pr_err("FAIL %s():%i " fmt, __func__, __LINE__, \
+		       ##__VA_ARGS__); \
+	} else { \
+		++unittest_results.passed; \
+		pr_debug("pass %s():%i " fmt, __func__, __LINE__, \
+			 ##__VA_ARGS__); \
+	} \
+	failed; \
+})
+
+/**
+ * Execute an array of unit tests.
+ * @name:	Name of set of unit tests--will be shown at INFO log level.
+ * @unit_tests:	A null-terminated list of unit tests to execute.
+ */
+static inline void exec_unittests(const char *name,
+				  const unittest_fptr *unit_tests)
+{
+	pr_info("begin comedi:\"%s\" unittests\n", name);
+
+	for (; (*unit_tests) != NULL; ++unit_tests)
+		(*unit_tests)();
+
+	pr_info("end of comedi:\"%s\" unittests - %i passed, %i failed\n", name,
+		unittest_results.passed, unittest_results.failed);
+}
+
+#endif /* _COMEDI_DRIVERS_TESTS_UNITTEST_H */