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Android example source code file (TypefaceTest.java)

This example Android source code file (TypefaceTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

android, drawing, exception, graphics, mediumtest, paint, smalltest, test, testcase, typeface, typefacetest, ui

The TypefaceTest.java Android example source code

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.graphics;

import android.graphics.Paint;
import android.graphics.Typeface;
import android.test.suitebuilder.annotation.MediumTest;
import android.test.suitebuilder.annotation.SmallTest;
import junit.framework.TestCase;


public class TypefaceTest extends TestCase {

    // create array of all std faces
    private final Typeface[] mFaces = new Typeface[] {
        Typeface.create(Typeface.SANS_SERIF, 0),
        Typeface.create(Typeface.SANS_SERIF, 1),
        Typeface.create(Typeface.SERIF, 0),
        Typeface.create(Typeface.SERIF, 1),
        Typeface.create(Typeface.SERIF, 2),
        Typeface.create(Typeface.SERIF, 3),
        Typeface.create(Typeface.MONOSPACE, 0)
    };
    
    @SmallTest
    public void testBasic() throws Exception {
        assertTrue("basic", Typeface.DEFAULT != null);
        assertTrue("basic", Typeface.DEFAULT_BOLD != null);
        assertTrue("basic", Typeface.SANS_SERIF != null);
        assertTrue("basic", Typeface.SERIF != null);
        assertTrue("basic", Typeface.MONOSPACE != null);
    }
    
    @SmallTest
    public void testUnique() throws Exception {
        final int n = mFaces.length;
        for (int i = 0; i < n; i++) {
            for (int j = i + 1; j < n; j++) {
                assertTrue("unique", mFaces[i] != mFaces[j]);
            }
        }
    }

    @SmallTest
    public void testStyles() throws Exception {
        assertTrue("style", mFaces[0].getStyle() == Typeface.NORMAL);
        assertTrue("style", mFaces[1].getStyle() == Typeface.BOLD);
        assertTrue("style", mFaces[2].getStyle() == Typeface.NORMAL);
        assertTrue("style", mFaces[3].getStyle() == Typeface.BOLD);
        assertTrue("style", mFaces[4].getStyle() == Typeface.ITALIC);
        assertTrue("style", mFaces[5].getStyle() == Typeface.BOLD_ITALIC);
        assertTrue("style", mFaces[6].getStyle() == Typeface.NORMAL);
    }

    @MediumTest
    public void testUniformY() throws Exception {
        Paint p = new Paint();
        final int n = mFaces.length;
        for (int i = 1; i <= 36; i++) {
            p.setTextSize(i);
            float ascent = 0;
            float descent = 0;
            for (int j = 0; j < n; j++) {
                p.setTypeface(mFaces[j]);
                Paint.FontMetrics fm = p.getFontMetrics();
                if (j == 0) {
                    ascent = fm.ascent;
                    descent = fm.descent;
                } else {
                    assertTrue("fontMetrics", fm.ascent == ascent);
                    assertTrue("fontMetrics", fm.descent == descent);
                }
            }
        }
    }

}

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