Ensure TestImgs are not empty

hinerm · hinerm · commit 6d351ef4df11 · 2023-09-28T14:08:36.000-05:00
diff --git a/imagej/imagej-testutil/pom.xml b/imagej/imagej-testutil/pom.xml
@@ -115,5 +115,16 @@
 			<groupId>net.imglib2</groupId>
 			<artifactId>imglib2</artifactId>
 		</dependency>
+		<!-- Test scope dependencies -->
+		<dependency>
+			<groupId>org.junit.jupiter</groupId>
+			<artifactId>junit-jupiter-api</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.junit.jupiter</groupId>
+			<artifactId>junit-jupiter-engine</artifactId>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 </project>
diff --git a/imagej/imagej-testutil/src/test/java/net/imagej/testutil/TestImgGenerationTest.java b/imagej/imagej-testutil/src/test/java/net/imagej/testutil/TestImgGenerationTest.java
@@ -0,0 +1,43 @@
+package net.imagej.testutil;
+
+import net.imglib2.Cursor;
+import net.imglib2.img.array.ArrayImg;
+import net.imglib2.type.NativeType;
+import net.imglib2.type.logic.BitType;
+import net.imglib2.type.numeric.integer.*;
+import net.imglib2.type.numeric.real.DoubleType;
+import net.imglib2.type.numeric.real.FloatType;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestImgGenerationTest {
+
+	@Test
+	public void verifyImages() {
+		ensureNotEmpty(TestImgGeneration.byteArray(true, 10, 10), new ByteType());
+		ensureNotEmpty(TestImgGeneration.unsignedByteArray(true, 10, 10), new UnsignedByteType());
+		ensureNotEmpty(TestImgGeneration.intArray(true, 10, 10), new IntType());
+		ensureNotEmpty(TestImgGeneration.unsignedIntArray(true, 10, 10), new UnsignedIntType());
+		ensureNotEmpty(TestImgGeneration.floatArray(true, 10, 10), new FloatType());
+		ensureNotEmpty(TestImgGeneration.doubleArray(true, 10, 10), new DoubleType());
+		ensureNotEmpty(TestImgGeneration.bitArray(true, 10, 10), new BitType());
+		ensureNotEmpty(TestImgGeneration.longArray(true, 10, 10), new LongType());
+		ensureNotEmpty(TestImgGeneration.unsignedLongArray(true, 10, 10), new UnsignedLongType());
+		ensureNotEmpty(TestImgGeneration.shortArray(true, 10, 10), new ShortType());
+		ensureNotEmpty(TestImgGeneration.unsignedShortArray(true, 10, 10), new UnsignedShortType());
+		ensureNotEmpty(TestImgGeneration.unsigned2BitArray(true, 10, 10), new Unsigned2BitType());
+		ensureNotEmpty(TestImgGeneration.unsigned4BitArray(true, 10, 10), new Unsigned4BitType());
+		ensureNotEmpty(TestImgGeneration.unsigned12BitArray(true, 10, 10), new Unsigned12BitType());
+		ensureNotEmpty(TestImgGeneration.unsigned128BitArray(true, 10, 10), new Unsigned128BitType());
+	}
+
+	private void ensureNotEmpty(ArrayImg img, NativeType nt) {
+				Cursor<?> cursor = img.cursor();
+				boolean foundNonZero = false;
+				while (cursor.hasNext()) {
+					foundNonZero = (!cursor.next().equals(nt)) || foundNonZero;
+				}
+				assertTrue(foundNonZero, "Randomly generated " + nt.getClass() + " array contains all 0's");
+	}
+}
