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-rw-r--r--src/test/java/au/id/zancanaro/javacheck/CollectionsTest.java23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/java/au/id/zancanaro/javacheck/CollectionsTest.java b/src/test/java/au/id/zancanaro/javacheck/CollectionsTest.java
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+++ b/src/test/java/au/id/zancanaro/javacheck/CollectionsTest.java
@@ -0,0 +1,23 @@
+package au.id.zancanaro.javacheck;
+
+import au.id.zancanaro.javacheck.annotations.Property;
+import au.id.zancanaro.javacheck.junit.Properties;
+import org.junit.runner.RunWith;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static java.util.Collections.reverse;
+import static org.junit.Assert.assertEquals;
+
+@RunWith(Properties.class)
+public class CollectionsTest {
+ @Property
+ public void reverseIsInvolution(List<Integer> list) {
+ List<Integer> newList = new ArrayList<>(list);
+ reverse(newList);
+ reverse(newList);
+
+ assertEquals(list, newList);
+ }
+}