actually count the null state test for run_test()

test/append-test-log.c

@@ -41,7 +41,11 @@ struct LogData
 
 static void append_to_empty(TestState *);
 static void append_to_existing(TestState *);
-static void a2e_chk_last(TestState *, LogData *);
+static void missing_last(TestState *);
+static void missing_first(TestState *);
+static void null_message(TestState *);
+decl_test(null_state);
+static void chk_last(TestState *, LogData *, const char *);
 static void mk_log_data(LogData *);
 
 static void chk_ptr_chg(
@@ -60,6 +64,10 @@ test_append_test_log(TestState *s)
 	print("append_test_log()\n");
 	append_to_empty(s);
 	append_to_existing(s);
+	missing_last(s);
+	missing_first(s);
+	null_message(s);
+	run_test(s, null_state);
 }
 
 // Local Functions
@@ -112,22 +120,112 @@ append_to_existing(TestState *s)
 	print("\t\tfirst_log\n");
 	chk_ptr_eq(
 		s,
-		"ERROR: append_test_log(): first_log:",
+		"ERROR: append_test_log(): append to existing: first_log:",
 		ld.state.first_log,
 		&ld.first
 	);
 
-	a2e_chk_last(s, &ld);
+	chk_last(
+		s,
+		&ld,
+		"ERROR: append_test_log(): append to existing: last_log:"
+	);
+	free(ld.state.last_log);
 }
 
 static void
-a2e_chk_last(TestState *s, LogData *ld)
+missing_last(TestState *s)
+{
+	LogData ld;
+	print("\tlast_log missing\n");
+	mk_log_data(&ld);
+	ld.state.last_log = 0;
+	append_test_log(&ld.state, "baz");
+
+	// first shouldn't change
+	print("\t\tfirst_log\n");
+	chk_ptr_eq(
+		s,
+		"ERROR: append_test_log(): last_log missing: first_log:",
+		ld.state.first_log,
+		&ld.first
+	);
+
+	chk_last(
+		s,
+		&ld,
+		"ERROR: append_test_log(): last_log missing: last_log:"
+	);
+	free(ld.state.last_log);
+}
+
+static void
+missing_first(TestState *s)
+{
+	LogData ld;
+	print("\tfirst_log missing\n");
+	mk_log_data(&ld);
+	ld.state.first_log = 0;
+	append_test_log(&ld.state, "baz");
+
+	// first_log should point to second
+	print("\t\tfirst_log\n");
+	chk_ptr_eq(
+		s,
+		"ERROR: append_test_log(): first_log missing: first_log:",
+		ld.state.first_log,
+		&ld.second
+	);
+
+	chk_last(
+		s,
+		&ld,
+		"ERROR: append_test_log(): first_log missing: last_log:"
+	);
+	free(ld.state.last_log);
+}
+
+static void
+null_message(TestState *s)
+{
+	LogData ld;
+	print("\tnull message\n");
+	mk_log_data(&ld);
+	append_test_log(&ld.state, 0);
+	
+	// first shouldn't change
+	print("\t\tfirst_log\n");
+	chk_ptr_eq(
+		s,
+		"ERROR: append_test_log(): null message: first_log:",
+		ld.state.first_log,
+		&ld.first
+	);
+	
+	// last shouldn't change
+	print("\t\tlast_log\n");
+	chk_ptr_eq(
+		s,
+		"ERROR: append_test_log(): null message: last_log:",
+		ld.state.last_log,
+		&ld.second
+	);
+}
+
+decl_test(null_state)
+{
+	append_test_log(0, "foo");
+	return test_success;
+}
+
+static void
+chk_last(TestState *s, LogData *ld, const char *context)
 {
 	print("\t\tlast_log\n");
 	chk_ptr_chg(
 		s,
 		"\t\t\t",
-		"ERROR: append_test_log(): last_log:",
+		context,
 		ld->state.last_log,
 		&ld->second
 	);

test/run-test.c

@@ -31,7 +31,7 @@
 static void test_pass(TestState *);
 static void test_fail(TestState *);
 static void test_pend(TestState *);
-static void null_state(TestState *);
+decl_test(null_state);
 static void null_test(TestState *);
 decl_test(always_passes);
 decl_test(always_fails);
@@ -46,7 +46,7 @@ test_run_test(TestState *s)
 	test_pass(s);
 	test_fail(s);
 	test_pend(s);
-	null_state(s);
+	run_test(s, null_state);
 	null_test(s);
 }
 
@@ -130,13 +130,11 @@ test_pend(TestState *s)
 	);
 }
 
-static void
-null_state(TestState *)
+decl_test(null_state)
 {
 	print("\tnull state\n");
-
-	// make sure it doesn't crash
 	run_test(0, always_passes);
+	return test_success;
 }
 
 static void