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authorCarlo Zancanaro <carlo@zancanaro.id.au>2015-05-31 23:47:38 +1000
committerCarlo Zancanaro <carlo@zancanaro.id.au>2015-05-31 23:47:38 +1000
commita4b5a5f904fe9f21697cd8fc8998c7e6e86306af (patch)
treeb5f66d8825219f05c4e1903434a121eb40e48cbe /src/test
parent199037f9c80afd885f1f536d91b40a8397cd6bf2 (diff)
Lots more updates
+ add a list generator, and some more number generators. + bugfix the assumption checking stuff: if it failed once it would pretty likely continue to fail! + write some simple actualy properties: - reverse . reverse = id - sort . sort = sort
Diffstat (limited to 'src/test')
-rw-r--r--src/test/java/au/id/zancanaro/PropertyTests.java43
1 files changed, 33 insertions, 10 deletions
diff --git a/src/test/java/au/id/zancanaro/PropertyTests.java b/src/test/java/au/id/zancanaro/PropertyTests.java
index 374a974..dd595e1 100644
--- a/src/test/java/au/id/zancanaro/PropertyTests.java
+++ b/src/test/java/au/id/zancanaro/PropertyTests.java
@@ -1,35 +1,58 @@
package au.id.zancanaro;
import au.id.zancanaro.annotations.Property;
+import au.id.zancanaro.annotations.Seed;
+import org.hamcrest.CoreMatchers;
import org.junit.*;
import org.junit.experimental.theories.DataPoint;
+import org.junit.matchers.JUnitMatchers;
import org.junit.runner.RunWith;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
@RunWith(PropertyTestRunner.class)
public class PropertyTests {
public static Generator<Integer> gen = Generators.integer();
+ public static Generator<List<Integer>> list = Generators.listOf(Generators.integer());
- @Test
- public void testblah() throws Exception {
- Assert.assertEquals(10, 11);
-
- }
-
+ @Ignore
@Property
public void aIsNotOdd(int a, int b) {
- Assume.assumeFalse(a % 2 == 1);
Assert.assertFalse(a % 2 == 1);
}
+ @Ignore
@Property
public void aIsNotLessThanB(int a, int b) {
- Assume.assumeFalse(a < b);
Assert.assertFalse(a < b);
}
+ @Ignore
@Property
public void aPlusBLessThanOneHundred(int a, int b) {
- Assert.assertTrue("a plus b is five", a + b == 5);
- Assert.assertEquals(a + b, 5);
+ Assert.assertTrue(a + b < 100);
+ }
+
+ @Property
+ public void sortingIsIdempotent(List<Integer> list) {
+ List<Integer> left = new ArrayList<>(list);
+ Collections.sort(left);
+
+ List<Integer> right = new ArrayList<>(list);
+ Collections.sort(right);
+ Collections.sort(right);
+
+ Assert.assertEquals(left, right);
+ }
+
+ @Property
+ public void reverseIsItsOwnInverse(List<Integer> list) {
+ List<Integer> reversed = new ArrayList<>(list);
+ Collections.reverse(reversed);
+ Collections.reverse(reversed);
+
+ Assert.assertEquals(list, reversed);
}
}