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-rw-r--r--lib/printf_test.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/lib/printf_test.c b/lib/printf_test.c
new file mode 100644
index 00000000..a2683d93
--- /dev/null
+++ b/lib/printf_test.c
@@ -0,0 +1,79 @@
+/*
+ * BIRD Library -- String Functions Tests
+ *
+ * (c) 2015 CZ.NIC z.s.p.o.
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#include "test/birdtest.h"
+
+#include "lib/string.h"
+
+#define BSPRINTF(nw, res, buf, fmt, ...) \
+ do { \
+ int n = bsprintf(buf, fmt, ##__VA_ARGS__); \
+ bt_assert_msg(n == nw, "fmt=\"%s\" returns n=%d, want %d", fmt, n, nw); \
+ bt_assert_msg(buf[n] == 0, "fmt=\"%s\" buf[%d] should be \'\\0\', found 0x%02x", fmt, n, buf[n]); \
+ bt_assert_msg(memcmp(buf, res, nw) == 0, "fmt=\"%s\" writes \"%*s\", want \"%*s\"", fmt, (n < nw ? n : nw), buf, nw, res); \
+ } while (0)
+
+static int
+t_simple(void)
+{
+ char buf[256];
+ memset(buf, 0xa5, 256);
+
+ BSPRINTF(0, "", buf, "", NULL);
+ BSPRINTF(1, "%", buf, "%%", NULL);
+ BSPRINTF(2, "%%", buf, "%%%%", NULL);
+
+ BSPRINTF(1, "\x00", buf, "%c", 0);
+ BSPRINTF(1, "@", buf, "@", 64);
+ BSPRINTF(1, "\xff", buf, "%c", 0xff);
+
+ errno = 5;
+ BSPRINTF(18, "Input/output error", buf, "%m");
+ errno = 0;
+
+ BSPRINTF(18, "Input/output error", buf, "%M", 5);
+
+ BSPRINTF(11, "TeSt%StRiNg", buf, "%s", "TeSt%StRiNg");
+
+ if (sizeof(void *) == 4)
+ BSPRINTF(8, "1a15600d", buf, "%p", (void *) 0x1a15600d);
+ else
+ BSPRINTF(16, "00000fee1a15600d", buf, "%p", (void *) 0xfee1a15600d);
+
+ long ln = 0;
+ BSPRINTF(10, "TeStStRiNg", buf, "TeStS%lntRiNg", &ln);
+ bt_assert_msg(ln == 5, "fmt=\"TeStS%%lntRiNg\", &ln makes ln=%ld, want 5", ln);
+
+ BSPRINTF(2, "%d", buf, "%%d", 1);
+ BSPRINTF(1, "1", buf, "%d", 1);
+ BSPRINTF(2, "+1", buf, "%+d", 1);
+ BSPRINTF(2, " 1", buf, "% d", 1);
+ BSPRINTF(2, "-1", buf, "%d", -1);
+ BSPRINTF(11, "-2147483648", buf, "%d", -2147483648);
+
+ BSPRINTF(7, "123.456", buf, "%t", (btime) 123456789);
+ BSPRINTF(7, "123.456", buf, "%2t", (btime) 123456789);
+ BSPRINTF(8, " 123.456", buf, "%8t", (btime) 123456789);
+ BSPRINTF(4, " 123", buf, "%4.0t", (btime) 123456789);
+ BSPRINTF(8, "123.4567", buf, "%8.4t", (btime) 123456789);
+ BSPRINTF(9, "0123.4567", buf, "%09.4t", (btime) 123456789);
+ BSPRINTF(12, " 123.456789", buf, "%12.10t", (btime) 123456789);
+ BSPRINTF(8, " 123.004", buf, "%8t", (btime) 123004 MS);
+
+ return 1;
+}
+
+int
+main(int argc, char *argv[])
+{
+ bt_init(argc, argv);
+
+ bt_test_suite(t_simple, "printf without varargs");
+
+ return bt_exit_value();
+}