implemented run_test_with()

9unit.c

@@ -27,18 +27,19 @@
 
 // Internal Types
 
-// data required by the context management functions
+typedef struct RunTestWith RunTestWith;
 typedef struct ContextData ContextData;
-
-// data required to run a single test with a label
 typedef struct SingleTestContext SingleTestContext;
-
-// data required by test_context_with()
 typedef struct TestContextWith TestContextWith;
-
-// data used by check_value()
 typedef struct CheckValue CheckValue;
 
+struct RunTestWith
+{
+	void *ptr; // state's prevoius ptr value
+	TestResult (*test)(TestState *, void *); // the test
+	void *val; // the value being passed in
+};
+
 struct ContextData
 {
 	const char *old_c; // previous context
@@ -74,6 +75,7 @@ static void print_log(TestState *);
 static void clear_log(TestState *);
 static void reindex(TestState *);
 static void report(const char *);
+static TestResult run_test_with_test(TestState *);
 static void build_new_context(TestState *, ContextData *);
 static void display_context(TestState *);
 static void restore_context(TestState *, ContextData *);
@@ -112,6 +114,23 @@ run_test(TestState *s, TestResult (*t)(TestState *))
 	}
 }
 
+void
+run_test_with(
+	TestState *s, // the state
+	TestResult (*test)(TestState *, void *), // the test
+	void *val // the value being passed in
+)
+{
+	if (!s) return;
+	if (!test) run_test(s, 0);
+	RunTestWith d;
+	d.ptr = s->ptr;
+	d.test = test;
+	d.val = val;
+	s->ptr = &d;
+	run_test(s, run_test_with_test);
+}
+
 void
 run_tests(void (*tests)(TestState *))
 {
@@ -286,6 +305,14 @@ report(const char *str)
 	print("%s", str);
 }
 
+static TestResult
+run_test_with_test(TestState *s)
+{
+	RunTestWith *d = s->ptr;
+	s->ptr = d->ptr;
+	return (*d->test)(s, d->val);
+}
+
 static void
 build_new_context(TestState *s, ContextData *cd)
 {

9unit.h

@@ -67,6 +67,13 @@ extern void run_test(
 	TestResult (*)(TestState *) // the test to run
 );
 
+// Runs a single test with an arbitrary input
+extern void run_test_with(
+	TestState *, // the state
+	TestResult (*)(TestState *, void *), // the test
+	void * // the value to pass in
+);
+
 // Runs multiple tests, displaying a summary at the end
 extern void run_tests(
 	// runs the tests and updates a provided TestState