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-rw-r--r--sangria-contextual/src/test/java/com/tavianator/sangria/contextual/ContextSensitiveBinderTest.java269
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diff --git a/sangria-contextual/src/test/java/com/tavianator/sangria/contextual/ContextSensitiveBinderTest.java b/sangria-contextual/src/test/java/com/tavianator/sangria/contextual/ContextSensitiveBinderTest.java
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+/*********************************************************************
+ * Sangria *
+ * Copyright (C) 2014 Tavian Barnes <tavianator@tavianator.com> *
+ * *
+ * This library is free software. It comes without any warranty, to *
+ * the extent permitted by applicable law. You can redistribute it *
+ * and/or modify it under the terms of the Do What The Fuck You Want *
+ * To Public License, Version 2, as published by Sam Hocevar. See *
+ * the COPYING file or http://www.wtfpl.net/ for more details. *
+ *********************************************************************/
+
+package com.tavianator.sangria.contextual;
+
+import javax.inject.Inject;
+import javax.inject.Named;
+
+import com.google.inject.AbstractModule;
+import com.google.inject.CreationException;
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+import com.google.inject.Key;
+import com.google.inject.MembersInjector;
+import com.google.inject.Provider;
+import com.google.inject.ProvisionException;
+import com.google.inject.TypeLiteral;
+import com.google.inject.name.Names;
+import com.google.inject.spi.InjectionPoint;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.*;
+
+/**
+ * Tests for {@link ContextSensitiveBinder}.
+ *
+ * @author Tavian Barnes (tavianator@tavianator.com)
+ * @version 1.0
+ * @since 1.0
+ */
+public class ContextSensitiveBinderTest {
+ public @Rule ExpectedException thrown = ExpectedException.none();
+
+ private static class SelfProvider implements ContextSensitiveProvider<String> {
+ @Override
+ public String getInContext(InjectionPoint injectionPoint) {
+ return injectionPoint.getDeclaringType().getRawType().getSimpleName();
+ }
+
+ @Override
+ public String getInUnknownContext() {
+ return "<unknown>";
+ }
+ }
+
+ private static class HasSelf {
+ @Inject @Named("self") String self;
+ @Inject @Named("self") Provider<String> selfProvider;
+ }
+
+ @Test
+ public void testProviderClass() {
+ Injector injector = Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ ContextSensitiveBinder.create(binder())
+ .bind(String.class)
+ .annotatedWith(Names.named("self"))
+ .toContextSensitiveProvider(SelfProvider.class);
+ }
+ });
+
+ HasSelf hasSelf = injector.getInstance(HasSelf.class);
+ assertThat(hasSelf.self, equalTo("HasSelf"));
+ assertThat(hasSelf.selfProvider.get(), equalTo("<unknown>"));
+ }
+
+ @Test
+ public void testProviderTypeLiteral() {
+ Injector injector = Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ ContextSensitiveBinder.create(binder())
+ .bind(String.class)
+ .annotatedWith(Names.named("self"))
+ .toContextSensitiveProvider(new TypeLiteral<SelfProvider>() { });
+ }
+ });
+
+ HasSelf hasSelf = injector.getInstance(HasSelf.class);
+ assertThat(hasSelf.self, equalTo("HasSelf"));
+ assertThat(hasSelf.selfProvider.get(), equalTo("<unknown>"));
+ }
+
+ @Test
+ public void testProviderKey() {
+ Injector injector = Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ bind(SelfProvider.class)
+ .annotatedWith(Names.named("self"))
+ .to(SelfProvider.class);
+
+ ContextSensitiveBinder.create(binder())
+ .bind(String.class)
+ .annotatedWith(Names.named("self"))
+ .toContextSensitiveProvider(new Key<SelfProvider>(Names.named("self")) { });
+ }
+ });
+
+ HasSelf hasSelf = injector.getInstance(HasSelf.class);
+ assertThat(hasSelf.self, equalTo("HasSelf"));
+ assertThat(hasSelf.selfProvider.get(), equalTo("<unknown>"));
+ }
+
+ @Test
+ public void testProviderInstance() {
+ Injector injector = Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ ContextSensitiveBinder.create(binder())
+ .bind(String.class)
+ .annotatedWith(Names.named("self"))
+ .toContextSensitiveProvider(new SelfProvider());
+ }
+ });
+
+ HasSelf hasSelf = injector.getInstance(HasSelf.class);
+ assertThat(hasSelf.self, equalTo("HasSelf"));
+ assertThat(hasSelf.selfProvider.get(), equalTo("<unknown>"));
+ }
+
+ @Test
+ public void testDeDuplication() {
+ Injector injector = Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ ContextSensitiveBinder contextualBinder = ContextSensitiveBinder.create(binder());
+ contextualBinder
+ .bind(String.class)
+ .annotatedWith(Names.named("self"))
+ .toContextSensitiveProvider(SelfProvider.class);
+ contextualBinder
+ .bind(String.class)
+ .annotatedWith(Names.named("self"))
+ .toContextSensitiveProvider(SelfProvider.class);
+ }
+ });
+ HasSelf hasSelf = injector.getInstance(HasSelf.class);
+ assertThat(hasSelf.self, equalTo("HasSelf"));
+ assertThat(hasSelf.selfProvider.get(), equalTo("<unknown>"));
+ }
+
+ private static class RequiredContextProvider implements ContextSensitiveProvider<String> {
+ @Override
+ public String getInContext(InjectionPoint injectionPoint) {
+ return injectionPoint.getDeclaringType().getRawType().getSimpleName();
+ }
+
+ @Override
+ public String getInUnknownContext() {
+ throw new IllegalStateException("@Named(\"self\") injection not supported here");
+ }
+ }
+
+ @Test
+ public void testContextRequired() {
+ thrown.expect(ProvisionException.class);
+
+ Injector injector = Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ ContextSensitiveBinder.create(binder())
+ .bind(String.class)
+ .annotatedWith(Names.named("self"))
+ .toContextSensitiveProvider(RequiredContextProvider.class);
+ }
+ });
+
+ HasSelf hasSelf = injector.getInstance(HasSelf.class);
+ assertThat(hasSelf.self, equalTo("HasSelf"));
+ hasSelf.selfProvider.get();
+ }
+
+ private static class Recursive {
+ @Inject HasSelf hasSelf;
+ String self;
+ }
+
+ private static class RecursiveProvider implements ContextSensitiveProvider<Recursive> {
+ @Inject MembersInjector<Recursive> membersInjector;
+
+ @Override
+ public Recursive getInContext(InjectionPoint injectionPoint) {
+ Recursive result = new Recursive();
+ membersInjector.injectMembers(result);
+ result.self = injectionPoint.getDeclaringType().getRawType().getSimpleName();
+ return result;
+ }
+
+ @Override
+ public Recursive getInUnknownContext() {
+ Recursive result = new Recursive();
+ membersInjector.injectMembers(result);
+ result.self = "<unknown>";
+ return result;
+ }
+ }
+
+ private static class HasRecursive {
+ @Inject Recursive recursive;
+ }
+
+ @Test
+ public void testRecursiveProvision() {
+ Injector injector = Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ ContextSensitiveBinder contextualBinder = ContextSensitiveBinder.create(binder());
+ contextualBinder
+ .bind(String.class)
+ .annotatedWith(Names.named("self"))
+ .toContextSensitiveProvider(SelfProvider.class);
+ contextualBinder
+ .bind(Recursive.class)
+ .toContextSensitiveProvider(new RecursiveProvider());
+ }
+ });
+
+ HasRecursive hasRecursive = injector.getInstance(HasRecursive.class);
+ assertThat(hasRecursive.recursive.self, equalTo("HasRecursive"));
+ assertThat(hasRecursive.recursive.hasSelf.self, equalTo("HasSelf"));
+
+ Recursive recursive = injector.getInstance(Recursive.class);
+ assertThat(recursive.self, equalTo("<unknown>"));
+ assertThat(recursive.hasSelf.self, equalTo("HasSelf"));
+ }
+
+ @Test
+ public void testIncompleteEdsl1() {
+ thrown.expect(CreationException.class);
+ thrown.expectMessage("Missing call to toContextSensitiveProvider() for java.lang.String");
+
+ Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ ContextSensitiveBinder.create(binder())
+ .bind(String.class);
+ }
+ });
+ }
+
+ @Test
+ public void testIncompleteEdsl2() {
+ thrown.expect(CreationException.class);
+ thrown.expectMessage("Missing call to toContextSensitiveProvider() for java.lang.String annotated with "
+ + "@com.google.inject.name.Named(value=self)");
+
+ Guice.createInjector(new AbstractModule() {
+ @Override
+ protected void configure() {
+ ContextSensitiveBinder.create(binder())
+ .bind(String.class)
+ .annotatedWith(Names.named("self"));
+ }
+ });
+ }
+}