Add compression tests.

tests/lzip.cpp

@@ -76,3 +76,53 @@ TEST_F(lzipFixture, lzip)
 
     EXPECT_EQ(crc, EXPECTED_CRC32);
 }
+
+TEST_F(lzipFixture, lzipCompress)
+{
+    int32_t        original_len = 8388608;
+    int32_t        cmp_len      = original_len;
+    int32_t        decmp_len    = original_len;
+    char           path[PATH_MAX];
+    char           filename[PATH_MAX * 2];
+    FILE*          file;
+    uint32_t       original_crc, decmp_crc;
+    const uint8_t* original;
+    uint8_t*       cmp_buffer;
+    uint8_t*       decmp_buffer;
+    int32_t        newSize;
+
+    // Allocate buffers
+    original     = (const uint8_t*)malloc(original_len);
+    cmp_buffer   = (uint8_t*)malloc(cmp_len);
+    decmp_buffer = (uint8_t*)malloc(decmp_len);
+
+    // Read the file
+    getcwd(path, PATH_MAX);
+    snprintf(filename, PATH_MAX, "%s/data/data.bin", path);
+
+    file = fopen(filename, "rb");
+    fread((void*)original, 1, original_len, file);
+    fclose(file);
+
+    // Calculate the CRC
+    original_crc = crc32_data(original, original_len);
+
+    // Compress
+    newSize = lzip_encode_buffer(cmp_buffer, cmp_len, original, original_len, 1048576, 273);
+    cmp_len = newSize;
+
+    // Decompress
+    newSize   = lzip_decode_buffer(decmp_buffer, decmp_len, cmp_buffer, cmp_len);
+    decmp_len = newSize;
+
+    EXPECT_EQ(decmp_len, original_len);
+
+    decmp_crc = crc32_data(decmp_buffer, decmp_len);
+
+    // Free buffers
+    free((void*)original);
+    free(cmp_buffer);
+    free(decmp_buffer);
+
+    EXPECT_EQ(decmp_crc, original_crc);
+}