text: /*
   *
   * 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/iomgr/resolve_address.h"
  #include "src/core/iomgr/iomgr.h"
  #include <grpc/support/log.h>
  #include <grpc/support/sync.h>
  #include <grpc/support/time.h>
  #include "test/core/util/test_config.h"
  
  static gpr_timespec test_deadline(void) {
    return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(100);
  }
  
  static void must_succeed(void* evp, grpc_resolved_addresses* p) {
    GPR_ASSERT(p);
    GPR_ASSERT(p->naddrs >= 1);
    grpc_resolved_addresses_destroy(p);
    gpr_event_set(evp, (void*)1);
  }
  
  static void must_fail(void* evp, grpc_resolved_addresses* p) {
    GPR_ASSERT(!p);
    gpr_event_set(evp, (void*)1);
  }
  
  static void test_localhost(void) {
    gpr_event ev;
    gpr_event_init(&ev);
    grpc_resolve_address("localhost:1", NULL, must_succeed, &ev);
    GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
  }
  
  static void test_default_port(void) {
    gpr_event ev;
    gpr_event_init(&ev);
    grpc_resolve_address("localhost", "1", must_succeed, &ev);
    GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
  }
  
  static void test_missing_default_port(void) {
    gpr_event ev;
    gpr_event_init(&ev);
    grpc_resolve_address("localhost", NULL, must_fail, &ev);
    GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
  }
  
  static void test_ipv6_with_port(void) {
    gpr_event ev;
    gpr_event_init(&ev);
    grpc_resolve_address("[2001:db8::1]:1", NULL, must_succeed, &ev);
    GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
  }
  
  static void test_ipv6_without_port(void) {
    const char* const kCases[] = {
        "2001:db8::1", "2001:db8::1.2.3.4", "[2001:db8::1]",
    };
    unsigned i;
    for (i = 0; i < sizeof(kCases) / sizeof(*kCases); i++) {
      gpr_event ev;
      gpr_event_init(&ev);
      grpc_resolve_address(kCases[i], "80", must_succeed, &ev);
      GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
    }
  }
  
  static void test_invalid_ip_addresses(void) {
    const char* const kCases[] = {
        "293.283.1238.3:1", "[2001:db8::11111]:1",
    };
    unsigned i;
    for (i = 0; i < sizeof(kCases) / sizeof(*kCases); i++) {
      gpr_event ev;
      gpr_event_init(&ev);
      grpc_resolve_address(kCases[i], NULL, must_fail, &ev);
      GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
    }
  }
  
  static void test_unparseable_hostports(void) {
    const char* const kCases[] = {
        "[", "[::1", "[::1]bad", "[1.2.3.4]", "[localhost]", "[localhost]:1",
    };
    unsigned i;
    for (i = 0; i < sizeof(kCases) / sizeof(*kCases); i++) {
      gpr_event ev;
      gpr_event_init(&ev);
      grpc_resolve_address(kCases[i], "1", must_fail, &ev);
      GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
    }
  }
  
  int main(int argc, char** argv) {
    grpc_test_init(argc, argv);
    grpc_iomgr_init();
    test_localhost();
    test_default_port();
    test_missing_default_port();
    test_ipv6_with_port();
    test_ipv6_without_port();
    test_invalid_ip_addresses();
    test_unparseable_hostports();
    grpc_iomgr_shutdown();
    return 0;
  }
  