add appium server tests

.travis.yml

@@ -4,6 +4,7 @@ jdk:
 - oraclejdk8
 install: true
 before_install:
+- npm install -g appium
 - test $TRAVIS_PULL_REQUEST = false && openssl aes-256-cbc -K $encrypted_45a1e02b23ba_key
   -iv $encrypted_45a1e02b23ba_iv -in gradle.properties.enc -out gradle.properties
   -d || true

src/test/java/ru/colibri/ui/settings/server/AppiumServerTest.java

@@ -0,0 +1,52 @@
+package ru.colibri.ui.settings.server;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.junit.MockitoJUnitRunner;
+
+import static org.mockito.Mockito.when;
+
+
+@RunWith(MockitoJUnitRunner.class)
+public class AppiumServerTest {
+
+    @InjectMocks
+    AppiumServer server;
+
+    @Mock
+    AbstractServerConfig config;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+    }
+
+    @Test
+    public void startAndStopServer() throws Exception {
+        when(config.getHost()).thenReturn("0.0.0.0");
+        when(config.getPort()).thenReturn("4723");
+        server.startServer();
+        server.stopServer();
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void startServerWithWrongHost() throws Exception {
+        when(config.getHost()).thenReturn("1.2.3.4.5.6.7");
+        when(config.getPort()).thenReturn("4723");
+        server.startServer();
+
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void startServerWithWrongPort() throws Exception {
+        when(config.getHost()).thenReturn("0.0.0.0");
+        when(config.getPort()).thenReturn("-4723");
+        server.startServer();
+
+    }
+
+}