restructured library to hide struct initialization

9unit.h

@@ -19,34 +19,47 @@
 */
 
 // Tracks information about the tests being run.
-typedef struct TestState
+typedef struct TestState TestState;
+
+// Defines a log entry in a TestState struct
+typedef struct TestLogEntry TestLogEntry;
+
+// The following structures will typically be maintained by the
+// testing framework.  You shouldn't need to concern yourself with
+// them.
+struct TestState
 {
 	int run; // number of tests run
 	int passed; // number of successful tests
 	int failed; // number of failed tests
 	int postponed; // number of postponed tests
-} TestState;
+	TestLogEntry *first_log; // the first log entry
+	TestLogEntry *last_log; //the last log entry
+};
+
+struct TestLogEntry
+{
+	char *text; // the entry text
+	TestLogEntry *next; // points to the next entry
+};
 
 // Possible results of running a single test
 typedef enum TestResult
 {
-	test_success,
-	test_failure,
-	test_postponed
+	test_success, // the test succeeded
+	test_failure, // the test failed
+	test_postponed // the test was postponed
 } TestResult;
 
-// Initializes a TestState value
-extern void initTestState(TestState *);
-
 // Runs a single test
-extern void runTest(
+extern void run_test(
 	TestState *, // the TestState data
-	TestResult (*)(void) // the test to run
+	TestResult (*)(TestState *) // the test to run
 );
 
 // Runs multiple tests, displaying a summary at the end
-extern void runTests(
-    // function that runs the tests and updates the provided TestState
+extern void run_tests(
+    // runs the tests and updates a provided TestState
 	void (*)(TestState *)
 );