1 files changed, 114 insertions, 0 deletions
diff --git a/test/core/slice/slice_buffer_test.cc b/test/core/slice/slice_buffer_test.cc
new file mode 100644
index 0000000000..338e8079dc
--- /dev/null
+++ b/test/core/slice/slice_buffer_test.cc
@@ -0,0 +1,114 @@
+/*
+ *
+ * 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 <grpc/slice_buffer.h>
+#include <grpc/support/log.h>
+#include "test/core/util/test_config.h"
+
+void test_slice_buffer_add() {
+  grpc_slice_buffer buf;
+  grpc_slice aaa = grpc_slice_from_copied_string("aaa");
+  grpc_slice bb = grpc_slice_from_copied_string("bb");
+  size_t i;
+
+  grpc_slice_buffer_init(&buf);
+  for (i = 0; i < 10; i++) {
+    grpc_slice_ref(aaa);
+    grpc_slice_ref(bb);
+    grpc_slice_buffer_add(&buf, aaa);
+    grpc_slice_buffer_add(&buf, bb);
+  }
+  GPR_ASSERT(buf.count > 0);
+  GPR_ASSERT(buf.length == 50);
+  grpc_slice_buffer_reset_and_unref(&buf);
+  GPR_ASSERT(buf.count == 0);
+  GPR_ASSERT(buf.length == 0);
+  for (i = 0; i < 10; i++) {
+    grpc_slice_ref(aaa);
+    grpc_slice_ref(bb);
+    grpc_slice_buffer_add(&buf, aaa);
+    grpc_slice_buffer_add(&buf, bb);
+  }
+  GPR_ASSERT(buf.count > 0);
+  GPR_ASSERT(buf.length == 50);
+  for (i = 0; i < 10; i++) {
+    grpc_slice_buffer_pop(&buf);
+    grpc_slice_unref(aaa);
+    grpc_slice_unref(bb);
+  }
+  GPR_ASSERT(buf.count == 0);
+  GPR_ASSERT(buf.length == 0);
+  grpc_slice_buffer_destroy(&buf);
+}
+
+void test_slice_buffer_move_first() {
+  grpc_slice slices[3];
+  grpc_slice_buffer src;
+  grpc_slice_buffer dst;
+  int idx = 0;
+  size_t src_len = 0;
+  size_t dst_len = 0;
+
+  slices[0] = grpc_slice_from_copied_string("aaa");
+  slices[1] = grpc_slice_from_copied_string("bbbb");
+  slices[2] = grpc_slice_from_copied_string("ccc");
+
+  grpc_slice_buffer_init(&src);
+  grpc_slice_buffer_init(&dst);
+  for (idx = 0; idx < 3; idx++) {
+    grpc_slice_ref(slices[idx]);
+    /* For this test, it is important that we add each slice at a new
+       slice index */
+    grpc_slice_buffer_add_indexed(&src, slices[idx]);
+    grpc_slice_buffer_add_indexed(&dst, slices[idx]);
+  }
+
+  /* Case 1: Move more than the first slice's length from src to dst */
+  src_len = src.length;
+  dst_len = dst.length;
+  grpc_slice_buffer_move_first(&src, 4, &dst);
+  src_len -= 4;
+  dst_len += 4;
+  GPR_ASSERT(src.length == src_len);
+  GPR_ASSERT(dst.length == dst_len);
+
+  /* src now has two slices ["bbb"] and  ["ccc"] */
+  /* Case 2: Move the first slice from src to dst */
+  grpc_slice_buffer_move_first(&src, 3, &dst);
+  src_len -= 3;
+  dst_len += 3;
+  GPR_ASSERT(src.length == src_len);
+  GPR_ASSERT(dst.length == dst_len);
+
+  /* src now has one slice ["ccc"] */
+  /* Case 3: Move less than the first slice's length from src to dst*/
+  grpc_slice_buffer_move_first(&src, 2, &dst);
+  src_len -= 2;
+  dst_len += 2;
+  GPR_ASSERT(src.length == src_len);
+  GPR_ASSERT(dst.length == dst_len);
+}
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+
+  test_slice_buffer_add();
+  test_slice_buffer_move_first();
+
+  return 0;
+}