Basic test for Convolver variants (NativeType, NumericType, etc)

Author: tpietzsch

src/test/java/net/imglib2/algorithm/convolution/kernel/ConvolverTest.java

@@ -0,0 +1,75 @@
+package net.imglib2.algorithm.convolution.kernel;
+
+import static org.junit.Assert.assertArrayEquals;
+
+import net.imglib2.img.array.ArrayImgs;
+import net.imglib2.type.numeric.real.DoubleType;
+
+import org.junit.Test;
+
+/**
+ * @author Tobias Pietzsch
+ */
+public class ConvolverTest
+{
+	private final double[] kernel = { 1.0, 2.0, 3.0, 4.0 };
+	private final int center = 2;
+
+	private final double[] in = { 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 };
+
+	@Test
+	public void testConvolverNativeType()
+	{
+		final double[] out = new double[ kernel.length ];
+		final ConvolverNativeType< DoubleType > convolver = new ConvolverNativeType<>(
+				Kernel1D.asymmetric( kernel, center ),
+				ArrayImgs.doubles( in, in.length ).randomAccess(),
+				ArrayImgs.doubles( out, out.length ).randomAccess(),
+				0,
+				out.length );
+		convolver.run();
+		assertArrayEquals( kernel, out, 0 );
+	}
+
+	@Test
+	public void testConvolverNumericType()
+	{
+		final double[] out = new double[ kernel.length ];
+		final ConvolverNumericType< DoubleType > convolver = new ConvolverNumericType<>(
+				Kernel1D.asymmetric( kernel, center ),
+				ArrayImgs.doubles( in, in.length ).randomAccess(),
+				ArrayImgs.doubles( out, out.length ).randomAccess(),
+				0,
+				out.length );
+		convolver.run();
+		assertArrayEquals( kernel, out, 0 );
+	}
+
+	@Test
+	public void testDoubleConvolverRealType()
+	{
+		final double[] out = new double[ kernel.length ];
+		final DoubleConvolverRealType convolver = new DoubleConvolverRealType(
+				Kernel1D.asymmetric( kernel, center ),
+				ArrayImgs.doubles( in, in.length ).randomAccess(),
+				ArrayImgs.doubles( out, out.length ).randomAccess(),
+				0,
+				out.length );
+		convolver.run();
+		assertArrayEquals( kernel, out, 0 );
+	}
+
+	@Test
+	public void testFloatConvolverRealType()
+	{
+		final double[] out = new double[ kernel.length ];
+		final FloatConvolverRealType convolver = new FloatConvolverRealType(
+				Kernel1D.asymmetric( kernel, center ),
+				ArrayImgs.doubles( in, in.length ).randomAccess(),
+				ArrayImgs.doubles( out, out.length ).randomAccess(),
+				0,
+				out.length );
+		convolver.run();
+		assertArrayEquals( kernel, out, 0 );
+	}
+}