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authorTavian Barnes <tavianator@tavianator.com>2014-05-07 21:32:35 -0400
committerTavian Barnes <tavianator@tavianator.com>2014-05-07 21:32:35 -0400
commit1eeacfdd9d747c2add6957794e541e3a022218a7 (patch)
tree379cb88477ca5d67361c34ebdec2ac8293eb040c /sangria-core/src/test
parent505b147bd23e26d21932af2c3336c9f4607bbcce (diff)
downloadsangria-1eeacfdd9d747c2add6957794e541e3a022218a7.tar.xz
core: Add PotentialAnnotation helper to store different annotation possibilities (none, type, insance).
Diffstat (limited to 'sangria-core/src/test')
-rw-r--r--sangria-core/src/test/java/com/tavianator/sangria/core/PotentialAnnotationTest.java126
1 files changed, 126 insertions, 0 deletions
diff --git a/sangria-core/src/test/java/com/tavianator/sangria/core/PotentialAnnotationTest.java b/sangria-core/src/test/java/com/tavianator/sangria/core/PotentialAnnotationTest.java
new file mode 100644
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--- /dev/null
+++ b/sangria-core/src/test/java/com/tavianator/sangria/core/PotentialAnnotationTest.java
@@ -0,0 +1,126 @@
+/****************************************************************************
+ * Sangria *
+ * Copyright (C) 2014 Tavian Barnes <tavianator@tavianator.com> *
+ * *
+ * 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 com.tavianator.sangria.core;
+
+import java.lang.annotation.Annotation;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import javax.inject.Qualifier;
+
+import com.google.inject.CreationException;
+import com.google.inject.Key;
+import com.google.inject.name.Names;
+import org.hamcrest.Matcher;
+import org.hamcrest.Matchers;
+import org.junit.Test;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.*;
+
+/**
+ * Tests for {@link PotentialAnnotation}s.
+ *
+ * @author Tavian Barnes (tavianator@tavianator.com)
+ * @version 1.1
+ * @since 1.1
+ */
+public class PotentialAnnotationTest {
+ @Retention(RetentionPolicy.RUNTIME)
+ @Qualifier
+ private @interface Simple {
+ }
+
+ private final PotentialAnnotation none = PotentialAnnotation.none();
+ private final Annotation nameAnnotation = Names.named("name");
+
+ @Test
+ public void testHasAnnotation() {
+ assertThat(none.hasAnnotation(), is(false));
+ assertThat(none.annotatedWith(Simple.class).hasAnnotation(), is(true));
+ assertThat(none.annotatedWith(nameAnnotation).hasAnnotation(), is(true));
+ }
+
+ @Test(expected = CreationException.class)
+ public void testInvalidAnnotatedWithType() {
+ none.annotatedWith(Simple.class)
+ .annotatedWith(Simple.class);
+ }
+
+ @Test(expected = CreationException.class)
+ public void testInvalidAnnotatedWithInstance() {
+ none.annotatedWith(Names.named("name"))
+ .annotatedWith(Names.named("name"));
+ }
+
+ @Test
+ public void testGetKey() {
+ assertThat(none.getKey(String.class),
+ equalTo(new Key<String>() { }));
+ assertThat(none.annotatedWith(Simple.class).getKey(String.class),
+ equalTo(new Key<String>(Simple.class) { }));
+ assertThat(none.annotatedWith(nameAnnotation).getKey(String.class),
+ equalTo(new Key<String>(nameAnnotation) { }));
+ }
+
+ @Test
+ public void testVisitor() {
+ PotentialAnnotation.Visitor<String> visitor = new PotentialAnnotation.Visitor<String>() {
+ @Override
+ public String visitNoAnnotation() {
+ return "none";
+ }
+
+ @Override
+ public String visitAnnotationType(Class<? extends Annotation> annotationType) {
+ assertThat((Object)annotationType, equalTo((Object)Simple.class));
+ return "type";
+ }
+
+ @Override
+ public String visitAnnotationInstance(Annotation annotation) {
+ assertThat(annotation, equalTo(nameAnnotation));
+ return "instance";
+ }
+ };
+
+ assertThat(none.accept(visitor), equalTo("none"));
+ assertThat(none.annotatedWith(Simple.class).accept(visitor), equalTo("type"));
+ assertThat(none.annotatedWith(nameAnnotation).accept(visitor), equalTo("instance"));
+ }
+
+ @Test
+ public void testToString() {
+ assertThat(none.toString(),
+ equalTo("[no annotation]"));
+ assertThat(none.annotatedWith(Simple.class).toString(),
+ equalTo("@com.tavianator.sangria.core.PotentialAnnotationTest.Simple"));
+ assertThat(none.annotatedWith(nameAnnotation).toString(),
+ equalTo("@com.google.inject.name.Named(value=name)"));
+ }
+
+ /**
+ * Needed to avoid compilation error to to inferred type being anonymous class.
+ */
+ private static <T> Matcher<Key<T>> equalTo(Key<T> key) {
+ return Matchers.equalTo(key);
+ }
+
+ private static <T> Matcher<T> equalTo(T object) {
+ return Matchers.equalTo(object);
+ }
+}