1 files changed, 219 insertions, 0 deletions
diff --git a/test/core/slice/b64_test.cc b/test/core/slice/b64_test.cc
new file mode 100644
index 0000000000..479198f9f9
--- /dev/null
+++ b/test/core/slice/b64_test.cc
@@ -0,0 +1,219 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include "src/core/lib/slice/b64.h"
+
+#include <string.h>
+
+#include <grpc/slice.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/slice/slice_internal.h"
+#include "test/core/util/test_config.h"
+
+static int buffers_are_equal(const unsigned char* buf1,
+                             const unsigned char* buf2, size_t size) {
+  size_t i;
+  for (i = 0; i < size; i++) {
+    if (buf1[i] != buf2[i]) {
+      gpr_log(GPR_ERROR, "buf1 and buf2 differ: buf1[%d] = %x vs buf2[%d] = %x",
+              (int)i, buf1[i], (int)i, buf2[i]);
+      return 0;
+    }
+  }
+  return 1;
+}
+
+static void test_simple_encode_decode_b64(int url_safe, int multiline) {
+  const char* hello = "hello";
+  char* hello_b64 =
+      grpc_base64_encode(hello, strlen(hello), url_safe, multiline);
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_slice hello_slice = grpc_base64_decode(&exec_ctx, hello_b64, url_safe);
+  GPR_ASSERT(GRPC_SLICE_LENGTH(hello_slice) == strlen(hello));
+  GPR_ASSERT(strncmp((const char*)GRPC_SLICE_START_PTR(hello_slice), hello,
+                     GRPC_SLICE_LENGTH(hello_slice)) == 0);
+
+  grpc_slice_unref_internal(&exec_ctx, hello_slice);
+  grpc_exec_ctx_finish(&exec_ctx);
+  gpr_free(hello_b64);
+}
+
+static void test_full_range_encode_decode_b64(int url_safe, int multiline) {
+  unsigned char orig[256];
+  size_t i;
+  char* b64;
+  grpc_slice orig_decoded;
+  for (i = 0; i < sizeof(orig); i++) orig[i] = (uint8_t)i;
+
+  /* Try all the different paddings. */
+  for (i = 0; i < 3; i++) {
+    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+    b64 = grpc_base64_encode(orig, sizeof(orig) - i, url_safe, multiline);
+    orig_decoded = grpc_base64_decode(&exec_ctx, b64, url_safe);
+    GPR_ASSERT(GRPC_SLICE_LENGTH(orig_decoded) == (sizeof(orig) - i));
+    GPR_ASSERT(buffers_are_equal(orig, GRPC_SLICE_START_PTR(orig_decoded),
+                                 sizeof(orig) - i));
+    grpc_slice_unref_internal(&exec_ctx, orig_decoded);
+    gpr_free(b64);
+    grpc_exec_ctx_finish(&exec_ctx);
+  }
+}
+
+static void test_simple_encode_decode_b64_no_multiline(void) {
+  test_simple_encode_decode_b64(0, 0);
+}
+
+static void test_simple_encode_decode_b64_multiline(void) {
+  test_simple_encode_decode_b64(0, 1);
+}
+
+static void test_simple_encode_decode_b64_urlsafe_no_multiline(void) {
+  test_simple_encode_decode_b64(1, 0);
+}
+
+static void test_simple_encode_decode_b64_urlsafe_multiline(void) {
+  test_simple_encode_decode_b64(1, 1);
+}
+
+static void test_full_range_encode_decode_b64_no_multiline(void) {
+  test_full_range_encode_decode_b64(0, 0);
+}
+
+static void test_full_range_encode_decode_b64_multiline(void) {
+  test_full_range_encode_decode_b64(0, 1);
+}
+
+static void test_full_range_encode_decode_b64_urlsafe_no_multiline(void) {
+  test_full_range_encode_decode_b64(1, 0);
+}
+
+static void test_full_range_encode_decode_b64_urlsafe_multiline(void) {
+  test_full_range_encode_decode_b64(1, 1);
+}
+
+static void test_url_safe_unsafe_mismatch_failure(void) {
+  unsigned char orig[256];
+  size_t i;
+  char* b64;
+  grpc_slice orig_decoded;
+  int url_safe = 1;
+  for (i = 0; i < sizeof(orig); i++) orig[i] = (uint8_t)i;
+
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  b64 = grpc_base64_encode(orig, sizeof(orig), url_safe, 0);
+  orig_decoded = grpc_base64_decode(&exec_ctx, b64, !url_safe);
+  GPR_ASSERT(GRPC_SLICE_IS_EMPTY(orig_decoded));
+  gpr_free(b64);
+  grpc_slice_unref_internal(&exec_ctx, orig_decoded);
+
+  b64 = grpc_base64_encode(orig, sizeof(orig), !url_safe, 0);
+  orig_decoded = grpc_base64_decode(&exec_ctx, b64, url_safe);
+  GPR_ASSERT(GRPC_SLICE_IS_EMPTY(orig_decoded));
+  gpr_free(b64);
+  grpc_slice_unref_internal(&exec_ctx, orig_decoded);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void test_rfc4648_test_vectors(void) {
+  char* b64;
+
+  b64 = grpc_base64_encode("", 0, 0, 0);
+  GPR_ASSERT(strcmp("", b64) == 0);
+  gpr_free(b64);
+
+  b64 = grpc_base64_encode("f", 1, 0, 0);
+  GPR_ASSERT(strcmp("Zg==", b64) == 0);
+  gpr_free(b64);
+
+  b64 = grpc_base64_encode("fo", 2, 0, 0);
+  GPR_ASSERT(strcmp("Zm8=", b64) == 0);
+  gpr_free(b64);
+
+  b64 = grpc_base64_encode("foo", 3, 0, 0);
+  GPR_ASSERT(strcmp("Zm9v", b64) == 0);
+  gpr_free(b64);
+
+  b64 = grpc_base64_encode("foob", 4, 0, 0);
+  GPR_ASSERT(strcmp("Zm9vYg==", b64) == 0);
+  gpr_free(b64);
+
+  b64 = grpc_base64_encode("fooba", 5, 0, 0);
+  GPR_ASSERT(strcmp("Zm9vYmE=", b64) == 0);
+  gpr_free(b64);
+
+  b64 = grpc_base64_encode("foobar", 6, 0, 0);
+  GPR_ASSERT(strcmp("Zm9vYmFy", b64) == 0);
+  gpr_free(b64);
+}
+
+static void test_unpadded_decode(void) {
+  grpc_slice decoded;
+
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  decoded = grpc_base64_decode(&exec_ctx, "Zm9vYmFy", 0);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "foobar") == 0);
+  grpc_slice_unref(decoded);
+
+  decoded = grpc_base64_decode(&exec_ctx, "Zm9vYmE", 0);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "fooba") == 0);
+  grpc_slice_unref(decoded);
+
+  decoded = grpc_base64_decode(&exec_ctx, "Zm9vYg", 0);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "foob") == 0);
+  grpc_slice_unref(decoded);
+
+  decoded = grpc_base64_decode(&exec_ctx, "Zm9v", 0);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "foo") == 0);
+  grpc_slice_unref(decoded);
+
+  decoded = grpc_base64_decode(&exec_ctx, "Zm8", 0);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "fo") == 0);
+  grpc_slice_unref(decoded);
+
+  decoded = grpc_base64_decode(&exec_ctx, "Zg", 0);
+  GPR_ASSERT(!GRPC_SLICE_IS_EMPTY(decoded));
+  GPR_ASSERT(grpc_slice_str_cmp(decoded, "f") == 0);
+  grpc_slice_unref(decoded);
+
+  decoded = grpc_base64_decode(&exec_ctx, "", 0);
+  GPR_ASSERT(GRPC_SLICE_IS_EMPTY(decoded));
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  test_simple_encode_decode_b64_no_multiline();
+  test_simple_encode_decode_b64_multiline();
+  test_simple_encode_decode_b64_urlsafe_no_multiline();
+  test_simple_encode_decode_b64_urlsafe_multiline();
+  test_full_range_encode_decode_b64_no_multiline();
+  test_full_range_encode_decode_b64_multiline();
+  test_full_range_encode_decode_b64_urlsafe_no_multiline();
+  test_full_range_encode_decode_b64_urlsafe_multiline();
+  test_url_safe_unsafe_mismatch_failure();
+  test_rfc4648_test_vectors();
+  test_unpadded_decode();
+  return 0;
+}