View tests: use fixed screen density

app/src/androidTest/java/org/isoron/uhabits/BaseAndroidTest.java

@@ -78,6 +78,7 @@ public class BaseAndroidTest
         targetContext = InstrumentationRegistry.getTargetContext();
         testContext = InstrumentationRegistry.getContext();
 
+        InterfaceUtils.setFixedResolution(2.0f);
         DateUtils.setFixedLocalTime(FIXED_LOCAL_TIME);
         setTheme(R.style.AppBaseTheme);
         setLocale("en", "US");

app/src/androidTest/java/org/isoron/uhabits/BaseViewTest.java

@@ -100,17 +100,18 @@ public class BaseViewTest extends BaseAndroidTest
         return view;
     }
 
-    protected int dpToPixels(int dp)
+    protected float dpToPixels(int dp)
     {
-        return (int) InterfaceUtils.dpToPixels(targetContext, dp);
+        return InterfaceUtils.dpToPixels(targetContext, dp);
     }
 
-    protected void measureView(View view, int width, int height)
+    protected void measureView(View view, float width, float height)
     {
-        int specWidth = makeMeasureSpec(width, View.MeasureSpec.EXACTLY);
-        int specHeight = makeMeasureSpec(height, View.MeasureSpec.EXACTLY);
+        int specWidth = makeMeasureSpec((int) width, View.MeasureSpec.EXACTLY);
+        int specHeight = makeMeasureSpec((int) height, View.MeasureSpec.EXACTLY);
 
-        view.setLayoutParams(new ViewGroup.LayoutParams(width, height));
+        view.setLayoutParams(
+            new ViewGroup.LayoutParams((int) width, (int) height));
         view.measure(specWidth, specHeight);
         view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
     }

app/src/androidTest/java/org/isoron/uhabits/activities/common/views/ScoreChartTest.java

@@ -21,7 +21,6 @@ package org.isoron.uhabits.activities.common.views;
 
 import android.support.test.runner.*;
 import android.test.suitebuilder.annotation.*;
-import android.util.*;
 
 import org.isoron.uhabits.*;
 import org.isoron.uhabits.models.*;
@@ -58,8 +57,6 @@ public class ScoreChartTest extends BaseViewTest
     @Test
     public void testRender() throws Throwable
     {
-        Log.d("HabitScoreViewTest",
-            String.format("height=%d", dpToPixels(100)));
         assertRenders(view, BASE_PATH + "render.png");
     }
 

app/src/main/java/org/isoron/uhabits/utils/InterfaceUtils.java

@@ -32,6 +32,14 @@ public abstract class InterfaceUtils
 {
     private static Typeface fontAwesome;
 
+    @Nullable
+    private static Float fixedResolution = null;
+
+    public static void setFixedResolution(@Nullable Float f)
+    {
+        fixedResolution = f;
+    }
+
     public static Typeface getFontAwesome(Context context)
     {
         if(fontAwesome == null) fontAwesome =
@@ -43,6 +51,8 @@ public abstract class InterfaceUtils
 
     public static float dpToPixels(Context context, float dp)
     {
+        if(fixedResolution != null) return dp * fixedResolution;
+
         Resources resources = context.getResources();
         DisplayMetrics metrics = resources.getDisplayMetrics();
         return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, metrics);
@@ -50,6 +60,8 @@ public abstract class InterfaceUtils
 
     public static float spToPixels(Context context, float sp)
     {
+        if(fixedResolution != null) return sp * fixedResolution;
+
         Resources resources = context.getResources();
         DisplayMetrics metrics = resources.getDisplayMetrics();
         return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, sp, metrics);