Add thenThrow(Exception)

CHANGELOG

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+0.5.0
+-----
+
+* Add `thenThrow(Exception)`
+
 0.4.0
 -----
 

src/main/java/net/kemitix/conditional/Condition.java

@@ -123,4 +123,12 @@ public interface Condition {
         return where(clause.get());
     }
 
+    /**
+     * Throw then exception if the {@code Condition} is {@code true}.
+     *
+     * @param exception the Exception to throw
+     * @throws Exception the exception
+     */
+    @SuppressWarnings({"illegalthrows", "PMD.SignatureDeclareThrowsException"})
+    void thenThrow(Exception exception) throws Exception;
 }

src/main/java/net/kemitix/conditional/FalseCondition.java

@@ -53,4 +53,9 @@ final class FalseCondition implements Condition {
         response.perform();
     }
 
+    @Override
+    public void thenThrow(final Exception exception) {
+        // do nothing
+    }
+
 }

src/main/java/net/kemitix/conditional/TrueCondition.java

@@ -54,4 +54,9 @@ final class TrueCondition implements Condition {
         // do nothing
     }
 
+    @Override
+    public void thenThrow(final Exception exception) throws Exception {
+        throw exception;
+    }
+
 }

src/test/java/net/kemitix/conditional/ConditionalTest.java

@@ -1,16 +1,16 @@
 package net.kemitix.conditional;
 
+import org.assertj.core.api.WithAssertions;
 import org.junit.Before;
 import org.junit.Test;
 
+import java.io.IOException;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import static org.assertj.core.api.Assertions.assertThat;
-
 /**
  * @author Paul Campbell (pcampbell@kemitix.net).
  */
-public class ConditionalTest {
+public class ConditionalTest implements WithAssertions {
 
     private Action thenResponse;
 
@@ -311,4 +311,18 @@ public class ConditionalTest {
         assertThatTheThenResponseDidNotRun();
         assertThat(atomicInteger).hasValue(0);
     }
+
+    @Test
+    public void whereTrue_thenThrowException() {
+        //given
+        assertThatExceptionOfType(IOException.class)
+                .isThrownBy(() -> Condition.where(true)
+                        .thenThrow(new IOException()));
+    }
+
+    @Test
+    public void whereFalse_thenDoNotThrowException() throws Exception {
+        Condition.where(false)
+                .thenThrow(new IOException());
+    }
 }