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-rw-r--r--src/lib/test-numpack.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/lib/test-numpack.c b/src/lib/test-numpack.c
new file mode 100644
index 0000000..9da8bb2
--- /dev/null
+++ b/src/lib/test-numpack.c
@@ -0,0 +1,64 @@
+/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */
+
+#include "test-lib.h"
+#include "buffer.h"
+#include "numpack.h"
+
+
+static const struct test {
+ uint64_t input;
+ uint8_t output[10];
+ unsigned int output_size;
+} enc_tests[] = {
+ { 0xffffffff, { 0xff, 0xff, 0xff, 0xff, 0xf }, 5 },
+ { 0, { 0 }, 1 },
+ { 0x7f, { 0x7f }, 1 },
+ { 0x80, { 0x80, 1 }, 2 },
+ { 0x81, { 0x81, 1 }, 2 },
+ { 0xdeadbeefcafe, { 0xfe, 0x95, 0xbf, 0xf7, 0xdb, 0xd5, 0x37 }, 7 },
+ { 0xffffffffffffffff, { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 1 }, 10 },
+ { 0xfffffffe, { 0xfe, 0xff, 0xff, 0xff, 0xf }, 5 },
+};
+static const struct fail {
+ uint8_t input[11];
+ unsigned int input_size;
+} dec_fails[] = {
+ { { 0 }, 0 }, /* has no termination byte */
+ { { 0x80 }, 1 }, /* ditto */
+ { { 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 }, 10 }, /* ditto*/
+ { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 2 }, 10 }, /* overflow */
+ { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f }, 11 }, /* ditto */
+};
+
+void test_numpack(void)
+{
+ buffer_t *buf = t_buffer_create(32);
+ unsigned int i;
+ const uint8_t *p, *end;
+ uint64_t num;
+ uint64_t magic=0x9669699669969669;
+
+ test_begin("numpack (good)");
+ for (i = 0; i < N_ELEMENTS(enc_tests); i++) {
+ buffer_set_used_size(buf, 0);
+ numpack_encode(buf, enc_tests[i].input);
+ test_assert_idx(buf->used == enc_tests[i].output_size, i);
+ test_assert_idx(memcmp(buf->data, enc_tests[i].output,
+ enc_tests[i].output_size) == 0,
+ i);
+
+ p = buf->data; end = p + buf->used;
+ test_assert_idx(numpack_decode(&p, end, &num) == 0, i);
+ test_assert_idx(num == enc_tests[i].input, i);
+ }
+ test_end();
+
+ test_begin("numpack (bad)");
+ for (i = 0; i < N_ELEMENTS(dec_fails); i++) {
+ p = dec_fails[i].input; end = p + dec_fails[i].input_size;
+ num = magic;
+ test_assert_idx(numpack_decode(&p, end, &num) == -1, i);
+ test_assert_idx(p == dec_fails[i].input && num == magic, i);
+ }
+ test_end();
+}