How to use

getDrawnPath

method

in

org.robolectric.shadows.ShadowCanvas

@Test
public void drawPath_shouldRecordThePointsOfEachPathEvenWhenItIsTheSameInstance() throws Exception {
 Canvas canvas = new Canvas(targetBitmap);
 Paint paint = new Paint();
 Path path = new Path();
 path.lineTo(10, 10);
 canvas.drawPath(path, paint);
 path.reset();
 path.lineTo(20, 20);
 canvas.drawPath(path, paint);
 ShadowCanvas shadow = shadowOf(canvas);
 assertThat(shadow.getPathPaintHistoryCount()).isEqualTo(2);
 assertEquals(shadowOf(shadow.getDrawnPath(0)).getPoints().get(0), new ShadowPath.Point(10, 10, LINE_TO));
 assertEquals(shadowOf(shadow.getDrawnPath(1)).getPoints().get(0), new ShadowPath.Point(20, 20, LINE_TO));
}

@Test
public void drawPath_shouldRecordThePathAndThePaint() throws Exception {
 Canvas canvas = new Canvas(targetBitmap);
 Path path = new Path();
 path.lineTo(10, 10);
 Paint paint = new Paint();
 paint.setColor(Color.RED);
 paint.setAlpha(7);
 canvas.drawPath(path, paint);
 // changing the values on this Paint shouldn't affect recorded painted path
 paint.setColor(Color.BLUE);
 paint.setAlpha(8);
 ShadowCanvas shadow = shadowOf(canvas);
 assertThat(shadow.getPathPaintHistoryCount()).isEqualTo(1);
 ShadowPath drawnPath = shadowOf(shadow.getDrawnPath(0));
 assertEquals(drawnPath.getPoints().get(0), new ShadowPath.Point(10, 10, LINE_TO));
 Paint drawnPathPaint = shadow.getDrawnPathPaint(0);
 assertThat(drawnPathPaint.getColor()).isEqualTo(Color.RED);
 assertThat(drawnPathPaint.getAlpha()).isEqualTo(7);
}