chrome.bluetoothLowEnergy: Implement getCharacteristic.

chrome/test/data/extensions/api_test/bluetooth_low_energy/get_characteristic/runtest.js

Index: chrome/test/data/extensions/api_test/bluetooth_low_energy/get_characteristic/runtest.js
diff --git a/chrome/test/data/extensions/api_test/bluetooth_low_energy/get_characteristic/runtest.js b/chrome/test/data/extensions/api_test/bluetooth_low_energy/get_characteristic/runtest.js
new file mode 100644
index 0000000000000000000000000000000000000000..be2cd4584ece08733d12485237eff676f537d87f
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+++ b/chrome/test/data/extensions/api_test/bluetooth_low_energy/get_characteristic/runtest.js
@@ -0,0 +1,81 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function testGetCharacteristic() {
+  chrome.test.assertTrue(characteristic != null,
+                         'Characteristic is null.');
+  chrome.test.assertEq('char_id0', characteristic.instanceId);
+  chrome.test.assertEq('00001211-0000-1000-8000-00805f9b34fb',
+                       characteristic.uuid);
+  chrome.test.assertEq(false, characteristic.isLocal);
+  chrome.test.assertEq(serviceId, characteristic.service.instanceId);
+  chrome.test.assertEq(4, characteristic.properties.length);
+  chrome.test.assertTrue(characteristic.properties.indexOf('broadcast') > -1,
+                         '\'broadcast\' not in characteristic.properties');
+  chrome.test.assertTrue(characteristic.properties.indexOf('read') > -1,
+                         '\'read\' not in characteristic.properties');
+  chrome.test.assertTrue(characteristic.properties.indexOf('indicate') > -1,
+                         '\'indicate\' not in characteristic.properties');
+  chrome.test.assertTrue(
+      characteristic.properties.indexOf('writeWithoutResponse') > -1,
+      '\'writeWithoutResponse\' not in characteristic.properties');
+
+  var valueBytes = new Uint8Array(characteristic.value);
+  chrome.test.assertEq(5, characteristic.value.byteLength);
+  chrome.test.assertEq(0x01, valueBytes[0]);
+  chrome.test.assertEq(0x02, valueBytes[1]);
+  chrome.test.assertEq(0x03, valueBytes[2]);
+  chrome.test.assertEq(0x04, valueBytes[3]);
+  chrome.test.assertEq(0x05, valueBytes[4]);
+
+  chrome.test.succeed();
+}
+
+var serviceId = 'service_id0';
+var charId = 'char_id0';
+var badCharId = 'char_id1';
+
+var characteristic = null;
+
+// 1. Unknown characteristic instanceId.
+chrome.bluetoothLowEnergy.getCharacteristic(badCharId, function (result) {
+  if (result || !chrome.runtime.lastError) {
+    chrome.test.fail('getCharacteristics should have failed');
+  }
+
+  // 2. Known characteristic instanceId, but the mapped device is unknown.
+  chrome.bluetoothLowEnergy.getCharacteristic(charId, function (result) {
+    if (result || !chrome.runtime.lastError) {
+      chrome.test.fail('getCharacteristics should have failed');
+    }
+
+    // 3. Known characteristic instanceId, but the mapped service is unknown.
+    chrome.bluetoothLowEnergy.getCharacteristic(charId, function (result) {
+      if (result || !chrome.runtime.lastError) {
+        chrome.test.fail('getCharacteristics should have failed');
+      }
+
+      // 4. Known characteristic instanceId, but the mapped service does not
+      // know about the characteristic.
+      chrome.bluetoothLowEnergy.getCharacteristic(charId, function (result) {
+        if (result || !chrome.runtime.lastError) {
+          chrome.test.fail('getCharacteristics should have failed');
+        }
+
+        // 5. Success.
+        chrome.bluetoothLowEnergy.getCharacteristic(charId, function (result) {
+          if (chrome.runtime.lastError) {
+            chrome.test.fail(chrome.runtime.lastError.message);
+          }
+
+          characteristic = result;
+
+          chrome.test.sendMessage('ready', function (message) {
+            chrome.test.runTests([testGetCharacteristic]);
+          });
+        });
+      });
+    })
+  });
+});