--- /dev/null
+/*-
+ * Copyright (c) 2004 Nik Clayton
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/**
+ * plan_tests - announce the number of tests you plan to run
+ * @tests: the number of tests
+ *
+ * This should be the first call in your test program: it allows tracing
+ * of failures which mean that not all tests are run.
+ *
+ * If you don't know how many tests will actually be run, assume all of them
+ * and use skip() if you don't actually run some tests.
+ *
+ * Example:
+ * plan_tests(13);
+ */
+void plan_tests(unsigned int tests);
+
+#if (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L) && !defined(__GNUC__)
+# error "Needs gcc or C99 compiler for variadic macros."
+#else
+
+/**
+ * ok1 - Simple conditional test
+ * @e: the expression which we expect to be true.
+ *
+ * This is the simplest kind of test: if the expression is true, the
+ * test passes. The name of the test which is printed will simply be
+ * file name, line number, and the expression itself.
+ *
+ * Example:
+ * ok1(init_subsystem() == 1);
+ */
+# define ok1(e) ((e) ? \
+ _gen_result(1, __func__, __FILE__, __LINE__, "%s", #e) : \
+ _gen_result(0, __func__, __FILE__, __LINE__, "%s", #e))
+
+/**
+ * ok - Conditional test with a name
+ * @e: the expression which we expect to be true.
+ * @...: the printf-style name of the test.
+ *
+ * If the expression is true, the test passes. The name of the test will be
+ * the filename, line number, and the printf-style string. This can be clearer
+ * than simply the expression itself.
+ *
+ * Example:
+ * ok1(init_subsystem() == 1);
+ * ok(init_subsystem() == 0, "Second initialization should fail");
+ */
+# define ok(e, ...) ((e) ? \
+ _gen_result(1, __func__, __FILE__, __LINE__, \
+ __VA_ARGS__) : \
+ _gen_result(0, __func__, __FILE__, __LINE__, \
+ __VA_ARGS__))
+
+/**
+ * pass - Note that a test passed
+ * @...: the printf-style name of the test.
+ *
+ * For complicated code paths, it can be easiest to simply call pass() in one
+ * branch and fail() in another.
+ *
+ * Example:
+ * x = do_something();
+ * if (!checkable(x) || check_value(x))
+ * pass("do_something() returned a valid value");
+ * else
+ * fail("do_something() returned an invalid value");
+ */
+# define pass(...) ok(1, __VA_ARGS__)
+
+/**
+ * fail - Note that a test failed
+ * @...: the printf-style name of the test.
+ *
+ * For complicated code paths, it can be easiest to simply call pass() in one
+ * branch and fail() in another.
+ */
+# define fail(...) ok(0, __VA_ARGS__)
+
+/* I don't find these to be useful. */
+# define skip_if(cond, n, ...) \
+ if (cond) skip((n), __VA_ARGS__); \
+ else
+
+# define skip_start(test, n, ...) \
+ do { \
+ if((test)) { \
+ skip(n, __VA_ARGS__); \
+ continue; \
+ }
+
+# define skip_end } while(0)
+
+#ifndef PRINTF_ATTRIBUTE
+#ifdef __GNUC__
+#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
+#else
+#define PRINTF_ATTRIBUTE(a1, a2)
+#endif
+#endif
+
+unsigned int _gen_result(int, const char *, char *, unsigned int, char *, ...)
+ PRINTF_ATTRIBUTE(5, 6);
+
+/**
+ * diag - print a diagnostic message (use instead of printf/fprintf)
+ * @fmt: the format of the printf-style message
+ *
+ * diag ensures that the output will not be considered to be a test
+ * result by the TAP test harness. It will append '\n' for you.
+ *
+ * Example:
+ * diag("Now running complex tests");
+ */
+void diag(char *fmt, ...) PRINTF_ATTRIBUTE(1, 2);
+
+/**
+ * skip - print a diagnostic message (use instead of printf/fprintf)
+ * @n: number of tests you're skipping.
+ * @fmt: the format of the reason you're skipping the tests.
+ *
+ * Sometimes tests cannot be run because the test system lacks some feature:
+ * you should explicitly document that you're skipping tests using skip().
+ *
+ * From the Test::More documentation:
+ * If it's something the user might not be able to do, use SKIP. This
+ * includes optional modules that aren't installed, running under an OS that
+ * doesn't have some feature (like fork() or symlinks), or maybe you need an
+ * Internet connection and one isn't available.
+ *
+ * Example:
+ * #ifdef HAVE_SOME_FEATURE
+ * ok1(test_some_feature());
+ * #else
+ * skip(1, "Don't have SOME_FEATURE");
+ * #endif
+ */
+void skip(unsigned int n, char *fmt, ...) PRINTF_ATTRIBUTE(2, 3);
+
+/**
+ * todo_start - mark tests that you expect to fail.
+ * @fmt: the reason they currently fail.
+ *
+ * It's extremely useful to write tests before you implement the matching fix
+ * or features: surround these tests by todo_start()/todo_end(). These tests
+ * will still be run, but with additional output that indicates that they are
+ * expected to fail.
+ *
+ * This way, should a test start to succeed unexpectedly, tools like prove(1)
+ * will indicate this and you can move the test out of the todo block. This
+ * is much more useful than simply commenting out (or '#if 0') the tests.
+ *
+ * From the Test::More documentation:
+ * If it's something the programmer hasn't done yet, use TODO. This is for
+ * any code you haven't written yet, or bugs you have yet to fix, but want to
+ * put tests in your testing script (always a good idea).
+ *
+ * Example:
+ * todo_start("dwim() not returning true yet");
+ * ok(dwim(), "Did what the user wanted");
+ * todo_end();
+ */
+void todo_start(char *fmt, ...) PRINTF_ATTRIBUTE(1, 2);
+
+/**
+ * todo_end - end of tests you expect to fail.
+ *
+ * See todo_start().
+ */
+void todo_end(void);
+
+/**
+ * exit_status - the value that main should return.
+ *
+ * For maximum compatability your test program should return a particular exit
+ * code (ie. 0 if all tests were run, and every test which was expected to
+ * succeed succeeded).
+ *
+ * Example:
+ * exit(exit_status());
+ */
+int exit_status(void);
+
+/**
+ * plan_no_plan - I have no idea how many tests I'm going to run.
+ *
+ * In some situations you may not know how many tests you will be running, or
+ * you are developing your test program, and do not want to update the
+ * plan_tests() call every time you make a change. For those situations use
+ * plan_no_plan() instead of plan_tests(). It indicates to the test harness
+ * that an indeterminate number of tests will be run.
+ *
+ * Remember, if you fail to plan, you plan to fail.
+ *
+ * Example:
+ * plan_no_plan();
+ * while (random() % 2)
+ * ok1(some_test());
+ * exit(exit_status());
+ */
+void plan_no_plan(void);
+
+/**
+ * plan_skip_all - Indicate that you will skip all tests.
+ * @reason: the string indicating why you can't run any tests.
+ *
+ * If your test program detects at run time that some required functionality
+ * is missing (for example, it relies on a database connection which is not
+ * present, or a particular configuration option that has not been included
+ * in the running kernel) use plan_skip_all() instead of plan_tests().
+ *
+ * Example:
+ * if (!have_some_feature) {
+ * plan_skip_all("Need some_feature support");
+ * exit(exit_status());
+ * }
+ * plan_tests(13);
+ */
+void plan_skip_all(char *reason);
+
+#endif /* C99 or gcc */
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