tests: add tests for `LZ4_decompress_safe_partial_usingDict`

Signed-off-by: Qi Wang <wangqi@linux.alibaba.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/tests/decompress-partial-usingDict.c b/tests/decompress-partial-usingDict.c
new file mode 100644
index 0000000..cfcb971
--- /dev/null
+++ b/tests/decompress-partial-usingDict.c
@@ -0,0 +1,88 @@
+#include "stdio.h"
+#include "string.h"
+#include "stdlib.h"
+#include "lz4.h"
+
+const char source[] =
+  "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod\n"
+  "tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim\n"
+  "veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea\n"
+  "commodo consequat. Duis aute irure dolor in reprehenderit in voluptate\n"
+  "velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat\n"
+  "cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id\n"
+  "est laborum.\n"
+  "\n"
+  "Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium\n"
+  "doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore\n"
+  "veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim\n"
+  "ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia\n"
+  "consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque\n"
+  "porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur,\n"
+  "adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore\n"
+  "et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis\n"
+  "nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid\n"
+  "ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea\n"
+  "voluptate velit esse quam nihil molestiae consequatur, vel illum qui\n"
+  "dolorem eum fugiat quo voluptas nulla pariatur?\n";
+
+#define BUFFER_SIZE 2048
+
+int main(void)
+{
+  int srcLen = (int)strlen(source);
+  size_t const smallSize = 1024;
+  size_t const largeSize = 64 * 1024 - 1;
+  char cmpBuffer[BUFFER_SIZE];
+  char buffer[BUFFER_SIZE + largeSize];
+  char* outBuffer = buffer + largeSize;
+  char* const dict = (char*)malloc(largeSize);
+  char* const largeDict = dict;
+  char* const smallDict = dict + largeSize - smallSize;
+  int cmpSize;
+  int i;
+
+  cmpSize = LZ4_compress_default(source, cmpBuffer, srcLen, BUFFER_SIZE);
+
+  for (i = cmpSize; i < cmpSize + 10; ++i) {
+    int result = LZ4_decompress_safe_partial_usingDict(cmpBuffer, outBuffer, i, srcLen, BUFFER_SIZE, NULL, 0);
+    if ((result < 0) || (result != srcLen) || memcmp(source, outBuffer, srcLen)) {
+      printf("test decompress-partial-usingDict with no dict error \n");
+      return -1;
+    }
+  }
+  
+  for (i = cmpSize; i < cmpSize + 10; ++i) {
+    int result = LZ4_decompress_safe_partial_usingDict(cmpBuffer, outBuffer, i, srcLen, BUFFER_SIZE, outBuffer - smallSize, smallSize);
+    if ((result < 0) || (result != srcLen) || memcmp(source, outBuffer, srcLen)) {
+      printf("test decompress-partial-usingDict with small prefix error \n");
+      return -1;
+    }
+  }
+
+  for (i = cmpSize; i < cmpSize + 10; ++i) {
+    int result = LZ4_decompress_safe_partial_usingDict(cmpBuffer, outBuffer, i, srcLen, BUFFER_SIZE, buffer, largeSize);
+    if ((result < 0) || (result != srcLen) || memcmp(source, outBuffer, srcLen)) {
+      printf("test decompress-partial-usingDict with large prefix error \n");
+      return -1;
+    }
+  }
+
+  for (i = cmpSize; i < cmpSize + 10; ++i) {
+    int result = LZ4_decompress_safe_partial_usingDict(cmpBuffer, outBuffer, i, srcLen, BUFFER_SIZE, smallDict, smallSize);
+    if ((result < 0) || (result != srcLen) || memcmp(source, outBuffer, srcLen)) {
+      printf("test decompress-partial-usingDict with small external dict error \n");
+      return -1;
+    }
+  }
+
+  for (i = cmpSize; i < cmpSize + 10; ++i) {
+    int result = LZ4_decompress_safe_partial_usingDict(cmpBuffer, outBuffer, i, srcLen, BUFFER_SIZE, largeDict, largeSize);
+    if ((result < 0) || (result != srcLen) || memcmp(source, outBuffer, srcLen)) {
+      printf("test decompress-partial-usingDict with large external dict error \n");
+      return -1;
+    }
+  }
+
+  printf("test decompress-partial-usingDict OK \n");
+  return 0;
+}