Added unit test to ensure that inflate with adler32 hash works on previously failed test case.

1 files changed, 59 insertions, 0 deletions

diff --git a/test/inflate_adler32.c b/test/inflate_adler32.c
new file mode 100644
index 0000000000..3def08e42d
--- /dev/null
+++ b/test/inflate_adler32.c
@@ -0,0 +1,59 @@
+/* GH-1066 - inflate small amount of data and validate with adler32 checksum. */
+
+#include "zbuild.h"
+#ifdef ZLIB_COMPAT
+#  include "zlib.h"
+#else
+#  include "zlib-ng.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+const char* original = "The quick brown fox jumped over the lazy dog";
+
+z_const unsigned char compressed[] = {
+    0x78, 0x9c, 0x0b, 0xc9, 0x48, 0x55, 0x28, 0x2c, 0xcd, 0x4c, 0xce, 0x56, 0x48, 
+    0x2a, 0xca, 0x2f, 0xcf, 0x53, 0x48, 0xcb, 0xaf, 0x50, 0xc8, 0x2a, 0xcd, 0x2d, 
+    0x48, 0x4d, 0x51, 0xc8, 0x2f, 0x4b, 0x2d, 0x52, 0x28, 0xc9, 0x48, 0x55, 0xc8, 
+    0x49, 0xac, 0xaa, 0x54, 0x48, 0xc9, 0x4f, 0x07, 0x00, 0x6b, 0x93, 0x10, 0x30
+};
+
+int main()
+{
+    unsigned char uncompressed[1024];
+    PREFIX3(stream) strm;
+
+    memset(&strm, 0, sizeof(strm));
+
+    int ret = PREFIX(inflateInit2)(&strm, 32 + MAX_WBITS);
+    if (ret != Z_OK) {
+        fprintf(stderr, "inflateInit2() failed with code %d\n", ret);
+        return EXIT_FAILURE;
+    }
+
+    strm.next_in = compressed;
+    strm.avail_in = sizeof(compressed);
+    strm.next_out = uncompressed;
+    strm.avail_out = sizeof(uncompressed);
+
+    ret = PREFIX(inflate)(&strm, Z_NO_FLUSH);
+    if (ret != Z_STREAM_END) {
+        fprintf(stderr, "inflate() failed with code %d\n", ret);
+        return EXIT_FAILURE;
+    }
+
+    ret = PREFIX(inflateEnd)(&strm);
+    if (ret != Z_OK) {
+        fprintf(stderr, "inflateEnd() failed with code %d\n", ret);
+        return EXIT_FAILURE;
+    }
+
+    if (memcmp(uncompressed, original, MIN(strm.total_out, strlen(original))) != 0) {
+        fprintf(stderr, "expected output does not match\n");
+        return EXIT_FAILURE;
+    }
+
+    return 0;
+}