1 files changed, 98 insertions, 0 deletions
diff --git a/libs/zip/test/test_offset.c b/libs/zip/test/test_offset.c
new file mode 100644
index 0000000..d4abdc1
--- /dev/null
+++ b/libs/zip/test/test_offset.c
@@ -0,0 +1,98 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <zip.h>
+
+#include "minunit.h"
+
+#if defined(_WIN32) || defined(_WIN64)
+#include <io.h>
+
+#define MKTEMP _mktemp
+#define UNLINK _unlink
+#else
+#define MKTEMP mkstemp
+#define UNLINK unlink
+#endif
+
+static char ZIPNAME[L_tmpnam + 1] = {0};
+
+#define HEADERDATA1 "this precedes the zip header"
+#define TESTDATA1 "Some test data 1...\0"
+#define TESTDATA2 "Some test data 2...\0"
+#define CRC32DATA1 2220805626
+#define CRC32DATA2 2532008468
+
+void test_setup(void) {
+  strncpy(ZIPNAME, "z-XXXXXX\0", L_tmpnam);
+  MKTEMP(ZIPNAME);
+
+  FILE *fp = fopen(ZIPNAME, "wb");
+  mu_check(fp != NULL);
+  fwrite(HEADERDATA1, 1, strlen(HEADERDATA1), fp);
+
+  struct zip_t *zip = zip_cstream_open(fp, ZIP_DEFAULT_COMPRESSION_LEVEL, 'w');
+  mu_check(zip != NULL);
+
+  mu_assert_int_eq(0, zip_entry_open(zip, "test/test-1.txt"));
+  mu_assert_int_eq(0, zip_entry_write(zip, TESTDATA1, strlen(TESTDATA1)));
+  mu_assert_int_eq(0, zip_entry_close(zip));
+
+  zip_close(zip);
+  fclose(fp);
+
+  zip = zip_open(ZIPNAME, ZIP_DEFAULT_COMPRESSION_LEVEL, 'a');
+  mu_check(zip != NULL);
+
+  mu_assert_int_eq(0, zip_entry_open(zip, "test/test-2.txt"));
+  mu_assert_int_eq(0, zip_entry_write(zip, TESTDATA2, strlen(TESTDATA2)));
+  mu_assert_int_eq(0, zip_entry_close(zip));
+
+  zip_close(zip);
+}
+
+void test_teardown(void) { remove(ZIPNAME); }
+
+MU_TEST(test_read) {
+  char *buf = NULL;
+  ssize_t bufsize;
+  size_t buftmp;
+  uint64_t archive_offset;
+
+  struct zip_t *zip = zip_open(ZIPNAME, 0, 'r');
+  mu_check(zip != NULL);
+
+  zip_offset(zip, &archive_offset);
+  mu_assert_int_eq(strlen(HEADERDATA1), archive_offset);
+
+  mu_assert_int_eq(2, zip_entries_total(zip));
+
+  mu_assert_int_eq(0, zip_entry_open(zip, "test/test-1.txt"));
+  mu_assert_int_eq(strlen(TESTDATA1), zip_entry_size(zip));
+  mu_check(CRC32DATA1 == zip_entry_crc32(zip));
+  bufsize = zip_entry_read(zip, (void **)&buf, &buftmp);
+  mu_assert_int_eq(strlen(TESTDATA1), bufsize);
+  mu_assert_int_eq((size_t)bufsize, buftmp);
+  mu_assert_int_eq(0, strncmp(buf, TESTDATA1, bufsize));
+  mu_assert_int_eq(0, zip_entry_close(zip));
+  zip_close(zip);
+  free(buf);
+  buf = NULL;
+}
+
+MU_TEST_SUITE(test_offset_suite) {
+  MU_SUITE_CONFIGURE(&test_setup, &test_teardown);
+
+  MU_RUN_TEST(test_read);
+}
+
+#define UNUSED(x) (void)x
+
+int main(int argc, char *argv[]) {
+  UNUSED(argc);
+  UNUSED(argv);
+
+  MU_RUN_SUITE(test_offset_suite);
+  MU_REPORT();
+  return MU_EXIT_CODE;
+}
+\ No newline at end of file