aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/node/test/channel_test.js
blob: c0ae2b769a0ea99d3128aed3c011ea644219b398 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
/*
 *
 * Copyright 2015-2016, 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.
 *
 */

'use strict';

var assert = require('assert');
var grpc = require('../src/grpc_extension');

/**
 * This is used for testing functions with multiple asynchronous calls that
 * can happen in different orders. This should be passed the number of async
 * function invocations that can occur last, and each of those should call this
 * function's return value
 * @param {function()} done The function that should be called when a test is
 *     complete.
 * @param {number} count The number of calls to the resulting function if the
 *     test passes.
 * @return {function()} The function that should be called at the end of each
 *     sequence of asynchronous functions.
 */
function multiDone(done, count) {
  return function() {
    count -= 1;
    if (count <= 0) {
      done();
    }
  };
}
var insecureCreds = grpc.ChannelCredentials.createInsecure();

describe('channel', function() {
  describe('constructor', function() {
    it('should require a string for the first argument', function() {
      assert.doesNotThrow(function() {
        new grpc.Channel('hostname', insecureCreds);
      });
      assert.throws(function() {
        new grpc.Channel();
      }, TypeError);
      assert.throws(function() {
        new grpc.Channel(5);
      });
    });
    it('should require a credential for the second argument', function() {
      assert.doesNotThrow(function() {
        new grpc.Channel('hostname', insecureCreds);
      });
      assert.throws(function() {
        new grpc.Channel('hostname', 5);
      });
      assert.throws(function() {
        new grpc.Channel('hostname');
      });
    });
    it('should accept an object for the third argument', function() {
      assert.doesNotThrow(function() {
        new grpc.Channel('hostname', insecureCreds, {});
      });
      assert.throws(function() {
        new grpc.Channel('hostname', insecureCreds, 'abc');
      });
    });
    it('should only accept objects with string or int values', function() {
      assert.doesNotThrow(function() {
        new grpc.Channel('hostname', insecureCreds,{'key' : 'value'});
      });
      assert.doesNotThrow(function() {
        new grpc.Channel('hostname', insecureCreds, {'key' : 5});
      });
      assert.throws(function() {
        new grpc.Channel('hostname', insecureCreds, {'key' : null});
      });
      assert.throws(function() {
        new grpc.Channel('hostname', insecureCreds, {'key' : new Date()});
      });
    });
    it('should succeed without the new keyword', function() {
      assert.doesNotThrow(function() {
        var channel = grpc.Channel('hostname', insecureCreds);
        assert(channel instanceof grpc.Channel);
      });
    });
  });
  describe('close', function() {
    var channel;
    beforeEach(function() {
      channel = new grpc.Channel('hostname', insecureCreds, {});
    });
    it('should succeed silently', function() {
      assert.doesNotThrow(function() {
        channel.close();
      });
    });
    it('should be idempotent', function() {
      assert.doesNotThrow(function() {
        channel.close();
        channel.close();
      });
    });
  });
  describe('getTarget', function() {
    var channel;
    beforeEach(function() {
      channel = new grpc.Channel('hostname', insecureCreds, {});
    });
    it('should return a string', function() {
      assert.strictEqual(typeof channel.getTarget(), 'string');
    });
  });
  describe('getConnectivityState', function() {
    var channel;
    beforeEach(function() {
      channel = new grpc.Channel('hostname', insecureCreds, {});
    });
    it('should return IDLE for a new channel', function() {
      assert.strictEqual(channel.getConnectivityState(),
                         grpc.connectivityState.IDLE);
    });
  });
  describe('watchConnectivityState', function() {
    var channel;
    beforeEach(function() {
      channel = new grpc.Channel('localhost', insecureCreds, {});
    });
    afterEach(function() {
      channel.close();
    });
    it('should time out if called alone', function(done) {
      var old_state = channel.getConnectivityState();
      var deadline = new Date();
      deadline.setSeconds(deadline.getSeconds() + 1);
      channel.watchConnectivityState(old_state, deadline, function(err, value) {
        assert(err);
        done();
      });
    });
    it('should complete if a connection attempt is forced', function(done) {
      var old_state = channel.getConnectivityState();
      var deadline = new Date();
      deadline.setSeconds(deadline.getSeconds() + 1);
      channel.watchConnectivityState(old_state, deadline, function(err, value) {
        assert.ifError(err);
        assert.notEqual(value.new_state, old_state);
        done();
      });
      channel.getConnectivityState(true);
    });
    it('should complete twice if called twice', function(done) {
      done = multiDone(done, 2);
      var old_state = channel.getConnectivityState();
      var deadline = new Date();
      deadline.setSeconds(deadline.getSeconds() + 1);
      channel.watchConnectivityState(old_state, deadline, function(err, value) {
        assert.ifError(err);
        assert.notEqual(value.new_state, old_state);
        done();
      });
      channel.watchConnectivityState(old_state, deadline, function(err, value) {
        assert.ifError(err);
        assert.notEqual(value.new_state, old_state);
        done();
      });
      channel.getConnectivityState(true);
    });
  });
});