#537 add unit test

processor/src/test/java/org/mapstruct/ap/test/bugs/_537/Issue537Mapper.java

@@ -0,0 +1,32 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.bugs._537;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.factory.Mappers;
+
+/**
+ * @author Christian Bandowski
+ */
+@Mapper(uses = ReferenceMapper.class, config = Issue537MapperConfig.class)
+public interface Issue537Mapper {
+    Issue537Mapper INSTANCE = Mappers.getMapper( Issue537Mapper.class );
+
+    Target mapDto(Source source);
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_537/Issue537MapperConfig.java

@@ -0,0 +1,29 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.bugs._537;
+
+import org.mapstruct.MapperConfig;
+
+/**
+ * @author Christian Bandowski
+ */
+@MapperConfig(uses = ReferenceMapper.class)
+public interface Issue537MapperConfig {
+
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_537/Issue537Test.java

@@ -0,0 +1,50 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.bugs._537;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mapstruct.ap.testutil.IssueKey;
+import org.mapstruct.ap.testutil.WithClasses;
+import org.mapstruct.ap.testutil.runner.AnnotationProcessorTestRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Christian Bandowski
+ */
+@RunWith(AnnotationProcessorTestRunner.class)
+@IssueKey("537")
+@WithClasses({
+    Issue537Mapper.class,
+    Issue537MapperConfig.class,
+    ReferenceMapper.class,
+    Source.class,
+    Target.class
+})
+public class Issue537Test {
+
+    @Test
+    public void testThatReferencedMapperWillBeUsed() {
+        Target target = Issue537Mapper.INSTANCE.mapDto( new Source( "abc" ) );
+
+        assertThat( target ).isNotNull();
+        assertThat( target.getValue() ).isEqualTo( 3 );
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_537/ReferenceMapper.java

@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.bugs._537;
+
+/**
+ * @author Christian Bandowski
+ */
+public class ReferenceMapper {
+    public Integer stringLength(String source) {
+        return source == null ? null : source.length();
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_537/Source.java

@@ -0,0 +1,41 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.bugs._537;
+
+/**
+ * @author Christian Bandowski
+ */
+public class Source {
+    private String value;
+
+    public Source() {
+    }
+
+    public Source(String value) {
+        this.value = value;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_537/Target.java

@@ -0,0 +1,41 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.bugs._537;
+
+/**
+ * @author Christian Bandowski
+ */
+public class Target {
+    private Integer value;
+
+    public Target() {
+    }
+
+    public Target(Integer value) {
+        this.value = value;
+    }
+
+    public Integer getValue() {
+        return value;
+    }
+
+    public void setValue(Integer value) {
+        this.value = value;
+    }
+}