WifiActionTest.java

package com.mumux.androidtesting.actions;

import com.mumux.androidtesting.actions.impl.ActionUtils;
import com.mumux.androidtesting.actions.impl.WifiAction;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

import java.io.IOException;

import static org.mockito.Mockito.*;
import static org.powermock.api.mockito.PowerMockito.mockStatic;


@RunWith(PowerMockRunner.class)
@PrepareForTest({ActionUtils.class})
public class WifiActionTest {

    @Test
    public void testWifiSuccess() throws IOException {
        Action action = new WifiAction();
        action.setValues(new Object[]{true});
        Runtime runtime = mock(Runtime.class);
        mockStatic(ActionUtils.class);
        when(ActionUtils.readFile("/sys/class/net/wlan0/operstate"))
                .thenReturn("down")
                .thenReturn("down")
                .thenReturn("down")
                .thenReturn("up");

        long start = System.currentTimeMillis();
        Assert.assertNull(action.run(null, runtime));
        long end = System.currentTimeMillis();

        verify(runtime, times(1)).exec("su -c svc wifi enable");
        //System.err.println("duration=" + (end - start));
        Assert.assertTrue((end - start) >= 200);
    }

    @Test
    public void testWifiFailure() throws IOException {
        Action action = new WifiAction();
        action.setValues(new Object[]{true});
        Runtime runtime = mock(Runtime.class);
        mockStatic(ActionUtils.class);

        when(ActionUtils.readFile("/sys/class/net/wlan0/operstate"))
                .thenReturn("down");
        long start = System.currentTimeMillis();
        Assert.assertEquals("Wifi setting not updated", action.run(null, runtime));
        long end = System.currentTimeMillis();
        verify(runtime, times(1)).exec("su -c svc wifi enable");
        Assert.assertFalse((end - start) > 3200);
    }

    @Test
    public void testWifiAlreadyOn() throws IOException {
        Action action = new WifiAction();
        action.setValues(new Object[]{true});
        mockStatic(ActionUtils.class);

        when(ActionUtils.readFile("/sys/class/net/wlan0/operstate"))
                .thenReturn("up");
        long start = System.currentTimeMillis();
        Assert.assertNull(action.run(null, null));
        long end = System.currentTimeMillis();
        Assert.assertTrue((end - start) < 100);
    }
}