Explicitly test printf %s with nullptr.
I haven't found a bug, but tests are good.
Bug: https://github.com/landley/toybox/issues/163
Change-Id: I57149800099abc699cc841b69a5a72aeac7c2bcc
diff --git a/tests/stdio_test.cpp b/tests/stdio_test.cpp
index a0cda1b..75abbd2 100644
--- a/tests/stdio_test.cpp
+++ b/tests/stdio_test.cpp
@@ -853,6 +853,20 @@
ASSERT_EQ(ENOMEM, errno);
}
+// Inspired by https://github.com/landley/toybox/issues/163.
+TEST(STDIO_TEST, printf_NULL) {
+ char buf[128];
+ char* null = nullptr;
+ EXPECT_EQ(4, snprintf(buf, sizeof(buf), "<%*.*s>", 2, 2, null));
+ EXPECT_STREQ("<(n>", buf);
+ EXPECT_EQ(8, snprintf(buf, sizeof(buf), "<%*.*s>", 2, 8, null));
+ EXPECT_STREQ("<(null)>", buf);
+ EXPECT_EQ(10, snprintf(buf, sizeof(buf), "<%*.*s>", 8, 2, null));
+ EXPECT_STREQ("< (n>", buf);
+ EXPECT_EQ(10, snprintf(buf, sizeof(buf), "<%*.*s>", 8, 8, null));
+ EXPECT_STREQ("< (null)>", buf);
+}
+
TEST(STDIO_TEST, fprintf) {
TemporaryFile tf;