Add minimal test for array types with generics

See #415

Author: imagejan

src/test/java/org/scijava/util/GenericTypesTest.java

@@ -0,0 +1,33 @@
+package org.scijava.util;
+
+import static org.junit.Assert.assertEquals;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Type;
+import java.util.List;
+
+import org.junit.Test;
+
+public class GenericTypesTest {
+
+	@Test
+	public void testArrayFields() throws NoSuchFieldException, SecurityException {
+		Field rawField = Types.field(ClassWithFields.class, "rawListArray");
+		Field genericField = Types.field(ClassWithFields.class, "genericListArray");
+
+		Type rawFieldType = Types.fieldType(rawField, ClassWithFields.class);
+		Type genericFieldType = Types.fieldType(genericField, ClassWithFields.class);
+
+		assertEquals(new List[0].getClass(), rawFieldType);
+		assertEquals(new List<?>[0].getClass(), genericFieldType);
+
+		assertEquals(List[].class, Types.raw(rawFieldType));
+		assertEquals(List[].class, Types.raw(genericFieldType));
+	}
+
+	@SuppressWarnings({ "rawtypes", "unused" })
+	private static class ClassWithFields {
+		public List[] rawListArray;
+		public List<?>[] genericListArray;
+	}
+}