Backport unit test API from trunk.

Also, update existing test modules that were already in this branch but had
been converted to the unit test API in trunk.

Review: https://reviewboard.asterisk.org/r/748/


git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.6.2@272531 f38db490-d61c-443f-a65b-d21fe96a405b

2 files changed, 216 insertions, 0 deletions

diff --git a/include/asterisk/_private.h b/include/asterisk/_private.h
index b630375fc..eb3950a6b 100644
--- a/include/asterisk/_private.h
+++ b/include/asterisk/_private.h
@@ -42,6 +42,7 @@ int ast_timing_init(void);		/*!< Provided by timing.c */
 int ast_indications_init(void); /*!< Provided by indications.c */
 int ast_indications_reload(void);/*!< Provided by indications.c */
 int ast_ssl_init(void);                 /*!< Porvided by ssl.c */
+int ast_test_init(void);                /*!< Provided by test.c */
 
 /*!
  * \brief Reload asterisk modules.
diff --git a/include/asterisk/test.h b/include/asterisk/test.h
new file mode 100644
index 000000000..f97df80d7
--- /dev/null
+++ b/include/asterisk/test.h
@@ -0,0 +1,215 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2009-2010, Digium, Inc.
+ *
+ * David Vossel <dvossel@digium.com>
+ * Russell Bryant <russell@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*!
+ * \file
+ * \brief Test Framework API
+ *
+ * For an overview on how to use the test API, see \ref AstUnitTestAPI
+ *
+ * \author David Vossel <dvossel@digium.com>
+ * \author Russell Bryant <russell@digium.com>
+ */
+
+#ifndef _AST_TEST_H_
+#define _AST_TEST_H_
+
+#ifdef TEST_FRAMEWORK
+#include "asterisk/cli.h"
+#include "asterisk/strings.h"
+#endif
+
+/*! 
+
+\page AstUnitTestAPI Asterisk Unit Test API
+
+\section UnitTestAPIUsage How to Use the Unit Test API
+
+\subsection DefineTest Define a Test
+
+   Create a callback function for the test using the AST_TEST_DEFINE macro.
+
+   Each defined test has three arguments avaliable to it's test code.
+       \param struct ast_test_info *info
+       \param enum ast_test_command cmd
+       \param struct ast_test *test
+
+   While these arguments are not visible they are passed to every test function
+   defined using the AST_TEST_DEFINE macro.
+
+   Below is an example of how to define and write a test function.
+
+\code
+   AST_TEST_DEFINE(sample_test_cb) \\The name of the callback function
+   {                               \\The the function's body 
+      switch (cmd) {
+      case TEST_INIT:
+          info->name = "sample_test";
+          info->category = "main/test/";
+          info->summary = "sample test for example purpose";
+          info->description = "This demonstrates how to initialize a test function";
+
+          return AST_TEST_NOT_RUN;
+      case TEST_EXECUTE:
+          break;
+      }
+      \test code
+      .
+      .
+      .
+      if (fail) {                 \\ the following is just some example logic
+          ast_test_status_update(test, "an error occured because...");
+          res = AST_RESULT_FAIL;
+      } else {
+          res = AST_RESULT_PASS
+      }
+      return res;                 \\ result must be of type enum ast_test_result_state
+   }
+\endcode
+
+      Details of the test execution, especially failure details, should be provided
+      by using the ast_test_status_update() function.
+
+\subsection RegisterTest Register a Test 
+
+   Register the test using the AST_TEST_REGISTER macro.
+
+   AST_TEST_REGISTER uses the callback function to retrieve all the information
+   pertaining to a test, so the callback function is the only argument required
+   for registering a test.
+
+   AST_TEST_REGISTER(sample_test_cb);    \\ Test callback function defined by AST_TEST_DEFINE
+
+   Tests are unregestered by using the AST_TEST_UNREGISTER macro.
+
+   AST_TEST_UNREGISTER(sample_test_cb);  \\ Remove a registered test by callback function
+
+\subsection ExecuteTest Execute a Test
+
+   Execute and generate test results via CLI commands
+
+   CLI Examples:
+\code
+   'test show registered all'  will show every registered test.
+   'test execute all'          will execute every registered test.
+   'test show results all'     will show detailed results for ever executed test
+   'test generate results xml' will generate a test report in xml format
+   'test generate results txt' will generate a test report in txt format
+\endcode
+*/
+
+/*! Macros used for defining and registering a test */
+#ifdef TEST_FRAMEWORK
+
+#define AST_TEST_DEFINE(hdr) static enum ast_test_result_state hdr(struct ast_test_info *info, enum ast_test_command cmd, struct ast_test *test)
+#define AST_TEST_REGISTER(cb) ast_test_register(cb)
+#define AST_TEST_UNREGISTER(cb) ast_test_unregister(cb)
+
+#else
+
+#define AST_TEST_DEFINE(hdr) static enum ast_test_result_state attribute_unused hdr(struct ast_test_info *info, enum ast_test_command cmd, struct ast_test *test)
+#define AST_TEST_REGISTER(cb)
+#define AST_TEST_UNREGISTER(cb)
+#define ast_test_status_update(a,b,c...)
+
+#endif
+
+enum ast_test_result_state {
+	AST_TEST_NOT_RUN,
+	AST_TEST_PASS,
+	AST_TEST_FAIL,
+};
+
+enum ast_test_command {
+	TEST_INIT,
+	TEST_EXECUTE,
+};
+
+/*!
+ * \brief An Asterisk unit test.
+ *
+ * This is an opaque type.
+ */
+struct ast_test;
+
+/*!
+ * \brief Contains all the initialization information required to store a new test definition
+ */
+struct ast_test_info {
+	/*! \brief name of test, unique to category */
+	const char *name;
+	/*! \brief test category */
+	const char *category;
+	/*! \brief optional short summary of test */
+	const char *summary;
+	/*! \brief optional brief detailed description of test */
+	const char *description;
+};
+
+#ifdef TEST_FRAMEWORK
+/*!
+ * \brief Generic test callback function
+ *
+ * \param error buffer string for failure results
+ *
+ * \retval AST_TEST_PASS for pass
+ * \retval AST_TEST_FAIL for failure
+ */
+typedef enum ast_test_result_state (ast_test_cb_t)(struct ast_test_info *info,
+		enum ast_test_command cmd, struct ast_test *test);
+
+/*!
+ * \brief unregisters a test with the test framework
+ *
+ * \param test callback function (required)
+ *
+ * \retval 0 success
+ * \retval -1 failure
+ */
+int ast_test_unregister(ast_test_cb_t *cb);
+
+/*!
+ * \brief registers a test with the test framework
+ *
+ * \param test callback function (required)
+ *
+ * \retval 0 success
+ * \retval -1 failure
+ */
+int ast_test_register(ast_test_cb_t *cb);
+
+/*!
+ * \brief update test's status during testing.
+ *
+ * \param test currently executing test
+ *
+ * \retval 0 success
+ * \retval -1 failure
+ */
+int __ast_test_status_update(const char *file, const char *func, int line,
+		struct ast_test *test, const char *fmt, ...)
+		__attribute__((format(printf, 5, 6)));
+
+/*!
+ * \ref __ast_test_status_update()
+ */
+#define ast_test_status_update(t, f, ...) __ast_test_status_update(__FILE__, __PRETTY_FUNCTION__, __LINE__, (t), (f), ## __VA_ARGS__)
+
+#endif /* TEST_FRAMEWORK */
+#endif /* _AST_TEST_H */