1 package com.xtremelabs.robolectric.shadows; 2 3 import android.util.DisplayMetrics; 4 import android.view.Display; 5 import com.xtremelabs.robolectric.Robolectric; 6 import com.xtremelabs.robolectric.WithTestDefaultsRunner; 7 import org.junit.Test; 8 import org.junit.runner.RunWith; 9 10 import static org.junit.Assert.assertEquals; 11 12 @RunWith(WithTestDefaultsRunner.class) 13 public class DisplayTest { 14 @Test shouldProvideDisplayMetrics()15 public void shouldProvideDisplayMetrics() throws Exception { 16 17 Display display = Robolectric.newInstanceOf(Display.class); 18 ShadowDisplay shadow = Robolectric.shadowOf(display); 19 20 shadow.setDensity(1.5f); 21 shadow.setDensityDpi(DisplayMetrics.DENSITY_MEDIUM); 22 shadow.setScaledDensity(1.6f); 23 shadow.setWidth(1024); 24 shadow.setHeight(600); 25 shadow.setXdpi(183.0f); 26 shadow.setYdpi(184.0f); 27 28 DisplayMetrics metrics = new DisplayMetrics(); 29 30 display.getMetrics(metrics); 31 32 assertEquals(1.5f, metrics.density, 0.05); 33 assertEquals(DisplayMetrics.DENSITY_MEDIUM, metrics.densityDpi); 34 assertEquals(1.6f, metrics.scaledDensity, 0.05); 35 assertEquals(1024, metrics.widthPixels); 36 assertEquals(600, metrics.heightPixels); 37 assertEquals(183.0f, metrics.xdpi, 0.05); 38 assertEquals(184.0f, metrics.ydpi, 0.05); 39 } 40 41 } 42