From cb3788cf02ebc4f8ad4b10c6de9dedc12cffa31f Mon Sep 17 00:00:00 2001
From: jlamothe <jlamothe@9p>
Date: Tue, 21 Nov 2023 20:55:58 +0000
Subject: [PATCH] check next value for append_test_log() on empty log

---
 9unit.c                |  2 +-
 test/append-test-log.c | 21 +++++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/9unit.c b/9unit.c
index c9870f1..4ed2b8a 100644
--- a/9unit.c
+++ b/9unit.c
@@ -350,7 +350,7 @@ print_log(TestState *s)
 	TestLogEntry *e = s->first_log;
 	while(e)
 	{
-		if(e->text) print("%s\n", e->text);
+		if(e->text) print("\n%s", e->text);
 		else print("(empty message)\n");
 		e = e->next;
 	}
diff --git a/test/append-test-log.c b/test/append-test-log.c
index c616591..5168e95 100644
--- a/test/append-test-log.c
+++ b/test/append-test-log.c
@@ -39,6 +39,7 @@ struct LogData
 // Local Prototypes
 
 static void append_to_empty(TestState *);
+static void chk_empty_first(TestState *, void *);
 static void append_to_existing(TestState *);
 static void missing_last(TestState *);
 static void missing_first(TestState *);
@@ -77,11 +78,27 @@ append_to_empty(TestState *s)
 	TestState test;
 	mk_sample_state(&test);
 	append_test_log(&test, "foo");
-	chk_ptr_ne(s, "first_log", test.first_log, 0);
-	chk_str_eq(s, "first_log->text", test.first_log->text, "foo");
+
+	// first_log
+	test_context_with(
+		s,
+		"first_log",
+		chk_empty_first,
+		&test
+	);
+
+	// last_log
 	chk_ptr_eq(s, "last_log", test.last_log, test.first_log);
 }
 
+static void
+chk_empty_first(TestState *s, void *ptr)
+{
+	TestState *test = ptr;
+	chk_str_eq(s, "text", test->first_log->text, "foo");
+	chk_ptr_eq(s, "next", test->first_log->next, 0);
+}
+
 static void
 append_to_existing(TestState *s)
 {