#41 Adding test; Actual issue was fixed by previous refactorings

processor/src/test/java/org/mapstruct/ap/test/oneway/OnewayTest.java

@@ -44,4 +44,15 @@ public class OnewayTest extends MapperTestBase {
         assertThat( target ).isNotNull();
         assertThat( target.retrieveFoo() ).isEqualTo( Long.valueOf( 42 ) );
     }
+
+    @Test
+    @IssueKey("41")
+    public void shouldReverseMapAttributeWithoutSetterInTargetType() {
+        Target target = new Target();
+
+        Source source = SourceTargetMapper.INSTANCE.targetToSource( target );
+
+        assertThat( source ).isNotNull();
+        assertThat( source.retrieveBar() ).isEqualTo( 23 );
+    }
 }

processor/src/test/java/org/mapstruct/ap/test/oneway/Source.java

@@ -21,8 +21,17 @@ package org.mapstruct.ap.test.oneway;
 public class Source {
 
     private int foo = 42;
+    private int bar;
 
     public int getFoo() {
         return foo;
     }
+
+    public void setBar(int bar) {
+        this.bar = bar;
+    }
+
+    public int retrieveBar() {
+        return bar;
+    }
 }

processor/src/test/java/org/mapstruct/ap/test/oneway/SourceTargetMapper.java

@@ -27,4 +27,6 @@ public interface SourceTargetMapper {
     SourceTargetMapper INSTANCE = Mappers.getMapper( SourceTargetMapper.class );
 
     Target sourceToTarget(Source source);
+
+    Source targetToSource(Target target);
 }

processor/src/test/java/org/mapstruct/ap/test/oneway/Target.java

@@ -21,6 +21,7 @@ package org.mapstruct.ap.test.oneway;
 public class Target {
 
     private Long foo;
+    private int bar = 23;
 
     public void setFoo(Long foo) {
         this.foo = foo;
@@ -29,4 +30,8 @@ public class Target {
     public Long retrieveFoo() {
         return foo;
     }
+
+    public int getBar() {
+        return bar;
+    }
 }