1 files changed, 66 insertions, 0 deletions
diff --git a/neozip/test/test_deflate_pending.cc b/neozip/test/test_deflate_pending.cc
new file mode 100644
index 0000000000..8ccedbf33d
--- /dev/null
+++ b/neozip/test/test_deflate_pending.cc
@@ -0,0 +1,66 @@
+/* test_deflate_pending.cc - Test deflatePending() with small buffers */
+
+#include "zbuild.h"
+#ifdef ZLIB_COMPAT
+#  include "zlib.h"
+#else
+#  include "zlib-ng.h"
+#endif
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <gtest/gtest.h>
+
+#include "test_shared.h"
+
+TEST(deflate, pending) {
+    PREFIX3(stream) c_stream;
+    uint8_t compr[128];
+    z_size_t compr_len = sizeof(compr);
+    int *bits;
+    unsigned *ped;
+    int err;
+
+
+    bits = (int *)calloc(256, 1);
+    ASSERT_TRUE(bits != NULL);
+    ped = (unsigned *)calloc(256, 1);
+    ASSERT_TRUE(ped != NULL);
+
+    memset(&c_stream, 0, sizeof(c_stream));
+
+    err = PREFIX(deflateInit)(&c_stream, Z_DEFAULT_COMPRESSION);
+    EXPECT_EQ(err, Z_OK);
+
+    c_stream.next_in = (z_const unsigned char *)hello;
+    c_stream.next_out = compr;
+
+    while (c_stream.total_in != hello_len && c_stream.total_out < compr_len) {
+        c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
+        err = PREFIX(deflate)(&c_stream, Z_NO_FLUSH);
+        EXPECT_EQ(err, Z_OK);
+    }
+
+    err = PREFIX(deflatePending)(&c_stream, ped, bits);
+    EXPECT_EQ(err, Z_OK);
+
+    EXPECT_GE(*bits, 0);
+    EXPECT_LE(*bits, 7);
+
+    /* Finish the stream, still forcing small buffers: */
+    for (;;) {
+        c_stream.avail_out = 1;
+        err = PREFIX(deflate)(&c_stream, Z_FINISH);
+        if (err == Z_STREAM_END) break;
+        EXPECT_EQ(err, Z_OK);
+    }
+
+    err = PREFIX(deflateEnd)(&c_stream);
+    EXPECT_EQ(err, Z_OK);
+
+    free(bits);
+    free(ped);
+}