fop/test/java/org/apache/fop/render/ps/PSPainterTestCase.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
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package org.apache.fop.render.ps;

import java.awt.Color;
import java.awt.Rectangle;
import java.io.IOException;
import java.util.Collections;

import org.junit.Before;
import org.junit.Test;
import org.mockito.verification.VerificationMode;

import org.apache.xmlgraphics.ps.PSGenerator;

import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.fo.Constants;
import org.apache.fop.render.intermediate.IFContext;
import org.apache.fop.render.intermediate.IFState;
import org.apache.fop.traits.BorderProps;

import static org.junit.Assert.fail;
import static org.mockito.Matchers.anyFloat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

public class PSPainterTestCase {

    private PSDocumentHandler docHandler;
    private PSPainter psPainter;
    private PSGenerator gen;
    private IFState state;

    @Before
    public void setup() {
        state = IFState.create();
        FOUserAgent userAgent = mock(FOUserAgent.class);
        when(userAgent.getRendererOptions()).thenReturn(Collections.EMPTY_MAP);
        IFContext context = mock(IFContext.class);
        when(context.getUserAgent()).thenReturn(userAgent);
        docHandler = new PSDocumentHandler(context);
        gen = mock(PSGenerator.class);
        docHandler.gen = gen;
        state = IFState.create();
        psPainter = new PSPainter(docHandler, state);
    }

    @Test
    public void testNonZeroFontSize() throws IOException {
        testFontSize(6, times(1));
    }

    @Test
    public void testZeroFontSize() throws IOException {
        testFontSize(0, never());
    }

    private void testFontSize(int fontSize, VerificationMode test) throws IOException {
        state.setFontSize(fontSize);
        try {
            psPainter.drawText(10, 10, 2, 2, null, "Test");
        } catch (Exception ex) {
            //Expected
        }
        verify(gen, test).useColor(state.getTextColor());
    }

    @Test
    public void testDrawBorderRect() {
        // the goal of this test is to check that the drawing of rounded corners in PS calls
        // PSGraphicsPaiter.cubicBezierTo(); the check is done by verifying that a curveto command is written
        // to the PSGenerator
        // mock
        PSGenerator psGenerator = mock(PSGenerator.class);
        when(psGenerator.formatDouble(anyFloat())).thenReturn("20.0"); // simplify!
        // mock
        PSRenderingUtil psRenderingUtil = mock(PSRenderingUtil.class);
        // mock
        PSDocumentHandler psDocumentHandler = mock(PSDocumentHandler.class);
        when(psDocumentHandler.getGenerator()).thenReturn(psGenerator);
        when(psDocumentHandler.getPSUtil()).thenReturn(psRenderingUtil);
        // real instance, no mock
        PSPainter psPainter = new PSPainter(psDocumentHandler);
        // build rectangle 200 x 50 (points, which are converted to milipoints)
        Rectangle rectangle = new Rectangle(0, 0, 200000, 50000);
        // build border properties: width 4pt, radius 30pt
        int style = Constants.EN_SOLID;
        BorderProps.Mode mode = BorderProps.Mode.SEPARATE;
        Color color = Color.BLACK;
        int borderWidth = 4000;
        int radiusStart = 30000;
        int radiusEnd = 30000;
        BorderProps border1 = new BorderProps(style, borderWidth, radiusStart, radiusEnd, color, mode);
        BorderProps border2 = new BorderProps(style, borderWidth, radiusStart, radiusEnd, color, mode);
        BorderProps border3 = new BorderProps(style, borderWidth, radiusStart, radiusEnd, color, mode);
        BorderProps border4 = new BorderProps(style, borderWidth, radiusStart, radiusEnd, color, mode);
        try {
            psPainter.drawBorderRect(rectangle, border1, border2, border3, border4, Color.WHITE);
            verify(psGenerator, times(16)).writeln("20.0 20.0 20.0 20.0 20.0 20.0 curveto ");
        } catch (Exception e) {
            fail("something broke...");
        }
    }

}