Initial checkin of gRPC to third_party/

third_party/grpc/test/core/client_config/resolvers/dns_resolver_test.c

Index: third_party/grpc/test/core/client_config/resolvers/dns_resolver_test.c
diff --git a/third_party/grpc/test/core/client_config/resolvers/dns_resolver_test.c b/third_party/grpc/test/core/client_config/resolvers/dns_resolver_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..38e76d534240868c0b33e79dcc4104107b47524f
--- /dev/null
+++ b/third_party/grpc/test/core/client_config/resolvers/dns_resolver_test.c
@@ -0,0 +1,106 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/client_config/resolvers/dns_resolver.h"
+
+#include <string.h>
+
+#include <grpc/support/log.h>
+
+#include "src/core/client_config/resolver.h"
+#include "test/core/util/test_config.h"
+
+static void subchannel_factory_ref(grpc_subchannel_factory *scv) {}
+static void subchannel_factory_unref(grpc_exec_ctx *exec_ctx,
+                                     grpc_subchannel_factory *scv) {}
+static grpc_subchannel *subchannel_factory_create_subchannel(
+    grpc_exec_ctx *exec_ctx, grpc_subchannel_factory *factory,
+    grpc_subchannel_args *args) {
+  GPR_UNREACHABLE_CODE(return NULL);
+}
+
+static const grpc_subchannel_factory_vtable sc_vtable = {
+    subchannel_factory_ref, subchannel_factory_unref,
+    subchannel_factory_create_subchannel};
+
+static grpc_subchannel_factory sc_factory = {&sc_vtable};
+
+static void test_succeeds(grpc_resolver_factory *factory, const char *string) {
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_uri *uri = grpc_uri_parse(string, 0);
+  grpc_resolver_args args;
+  grpc_resolver *resolver;
+  gpr_log(GPR_DEBUG, "test: '%s' should be valid for '%s'", string,
+          factory->vtable->scheme);
+  GPR_ASSERT(uri);
+  memset(&args, 0, sizeof(args));
+  args.uri = uri;
+  args.subchannel_factory = &sc_factory;
+  resolver = grpc_resolver_factory_create_resolver(factory, &args);
+  GPR_ASSERT(resolver != NULL);
+  GRPC_RESOLVER_UNREF(&exec_ctx, resolver, "test_succeeds");
+  grpc_uri_destroy(uri);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void test_fails(grpc_resolver_factory *factory, const char *string) {
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_uri *uri = grpc_uri_parse(string, 0);
+  grpc_resolver_args args;
+  grpc_resolver *resolver;
+  gpr_log(GPR_DEBUG, "test: '%s' should be invalid for '%s'", string,
+          factory->vtable->scheme);
+  GPR_ASSERT(uri);
+  memset(&args, 0, sizeof(args));
+  args.uri = uri;
+  resolver = grpc_resolver_factory_create_resolver(factory, &args);
+  GPR_ASSERT(resolver == NULL);
+  grpc_uri_destroy(uri);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+int main(int argc, char **argv) {
+  grpc_resolver_factory *dns;
+  grpc_test_init(argc, argv);
+
+  dns = grpc_dns_resolver_factory_create();
+
+  test_succeeds(dns, "dns:10.2.1.1");
+  test_succeeds(dns, "dns:10.2.1.1:1234");
+  test_succeeds(dns, "ipv4:www.google.com");
+  test_fails(dns, "ipv4://8.8.8.8/8.8.8.8:8888");
+
+  grpc_resolver_factory_unref(dns);
+
+  return 0;
+}