From d814b12bd39172bc59fcefa5815bc3776b793177 Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Wed, 7 May 2014 21:58:15 -0400 Subject: listbinder: Add an implementation of ListBinder. --- .../sangria/listbinder/ListBinderTest.java | 210 +++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 sangria-listbinder/src/test/java/com/tavianator/sangria/listbinder/ListBinderTest.java (limited to 'sangria-listbinder/src/test/java/com') diff --git a/sangria-listbinder/src/test/java/com/tavianator/sangria/listbinder/ListBinderTest.java b/sangria-listbinder/src/test/java/com/tavianator/sangria/listbinder/ListBinderTest.java new file mode 100644 index 0000000..4c7c86b --- /dev/null +++ b/sangria-listbinder/src/test/java/com/tavianator/sangria/listbinder/ListBinderTest.java @@ -0,0 +1,210 @@ +/**************************************************************************** + * Sangria * + * Copyright (C) 2014 Tavian Barnes * + * * + * 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.listbinder; + +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; +import java.util.*; +import javax.inject.Provider; +import javax.inject.Qualifier; + +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.TypeLiteral; +import com.google.inject.name.Names; +import org.junit.Rule; +import org.junit.Test; +import org.junit.rules.ExpectedException; + +import com.tavianator.sangria.core.TypeLiterals; + +import static org.hamcrest.Matchers.*; +import static org.junit.Assert.*; + +/** + * Tests for {@link ListBinder}. + * + * @author Tavian Barnes (tavianator@tavianator.com) + * @version 1.1 + * @since 1.1 + */ +public class ListBinderTest { + public @Rule ExpectedException thrown = ExpectedException.none(); + + @Retention(RetentionPolicy.RUNTIME) + @Qualifier + private @interface Simple { + } + + private static final TypeLiteral> LIST_OF_STRINGS = TypeLiterals.listOf(String.class); + private static final TypeLiteral>> LIST_OF_STRING_PROVIDERS = TypeLiterals.listOf(TypeLiterals.providerOf(String.class)); + + @Test + public void testBasicLists() { + Injector injector = Guice.createInjector(new AbstractModule() { + @Override + protected void configure() { + ListBinder listBinder = ListBinder.build(binder(), String.class) + .withDefaultPriority(); + listBinder.addBinding().toInstance("a"); + listBinder.addBinding().toInstance("b"); + listBinder.addBinding().toInstance("c"); + + listBinder = ListBinder.build(binder(), String.class) + .annotatedWith(Simple.class) + .withDefaultPriority(); + listBinder.addBinding().toInstance("d"); + listBinder.addBinding().toInstance("e"); + listBinder.addBinding().toInstance("f"); + + listBinder = ListBinder.build(binder(), String.class) + .annotatedWith(Names.named("name")) + .withDefaultPriority(); + listBinder.addBinding().toInstance("g"); + listBinder.addBinding().toInstance("h"); + listBinder.addBinding().toInstance("i"); + } + }); + List list = injector.getInstance(Key.get(LIST_OF_STRINGS)); + assertThat(list, contains("a", "b", "c")); + + List> providers = injector.getInstance(Key.get(LIST_OF_STRING_PROVIDERS)); + assertThat(providers, hasSize(3)); + assertThat(providers.get(0).get(), equalTo("a")); + assertThat(providers.get(1).get(), equalTo("b")); + assertThat(providers.get(2).get(), equalTo("c")); + + list = injector.getInstance(Key.get(LIST_OF_STRINGS, Simple.class)); + assertThat(list, contains("d", "e", "f")); + + list = injector.getInstance(Key.get(LIST_OF_STRINGS, Names.named("name"))); + assertThat(list, contains("g", "h", "i")); + } + + @Test + public void testSplitBinders() { + Injector injector = Guice.createInjector(new AbstractModule() { + @Override + protected void configure() { + ListBinder listBinder = ListBinder.build(binder(), String.class) + .withPriority(1); + listBinder.addBinding().toInstance("c"); + listBinder.addBinding().toInstance("d"); + } + }, new AbstractModule() { + @Override + protected void configure() { + ListBinder listBinder = ListBinder.build(binder(), String.class) + .withPriority(0); + listBinder.addBinding().toInstance("a"); + listBinder.addBinding().toInstance("b"); + } + }); + List list = injector.getInstance(Key.get(LIST_OF_STRINGS)); + assertThat(list, contains("a", "b", "c", "d")); + } + + @Test + public void testConflictingDefaultPriorities() { + thrown.expect(CreationException.class); + thrown.expectMessage(containsString("2 errors")); + thrown.expectMessage(containsString("1) Duplicate ListBinder with default priority")); + thrown.expectMessage(containsString("2) Duplicate ListBinder with default priority")); + thrown.expectMessage(containsString("at com.tavianator.sangria.listbinder.ListBinderTest")); + + Guice.createInjector(new AbstractModule() { + @Override + protected void configure() { + ListBinder.build(binder(), String.class) + .withDefaultPriority(); + } + }, new AbstractModule() { + @Override + protected void configure() { + ListBinder.build(binder(), String.class) + .withDefaultPriority(); + } + }); + } + + @Test + public void testConflictingExplicitPriorities() { + thrown.expect(CreationException.class); + thrown.expectMessage(containsString("2 errors")); + thrown.expectMessage(containsString("1) Duplicate ListBinder with priority [1]")); + thrown.expectMessage(containsString("2) Duplicate ListBinder with priority [1]")); + thrown.expectMessage(containsString("at com.tavianator.sangria.listbinder.ListBinderTest")); + + Guice.createInjector(new AbstractModule() { + @Override + protected void configure() { + ListBinder.build(binder(), String.class) + .withPriority(1); + } + }, new AbstractModule() { + @Override + protected void configure() { + ListBinder.build(binder(), String.class) + .withPriority(1); + } + }); + } + + @Test + public void testConflictingDefaultAndExplicitPriorities() { + thrown.expect(CreationException.class); + thrown.expectMessage(containsString("2 errors")); + thrown.expectMessage(containsString(") ListBinder with default priority conflicts with ListBinder with explicit priority")); + thrown.expectMessage(containsString(") ListBinder with priority [1] conflicts with ListBinder with default priority")); + thrown.expectMessage(containsString("at com.tavianator.sangria.listbinder.ListBinderTest")); + + Guice.createInjector(new AbstractModule() { + @Override + protected void configure() { + ListBinder.build(binder(), String.class) + .withDefaultPriority(); + } + }, new AbstractModule() { + @Override + protected void configure() { + ListBinder.build(binder(), String.class) + .withPriority(1); + } + }); + } + + @Test + public void testToString() { + Guice.createInjector(new AbstractModule() { + @Override + protected void configure() { + ListBinder listBinder = ListBinder.build(binder(), String.class) + .annotatedWith(Names.named("name")) + .withDefaultPriority(); + assertThat(listBinder.toString(), equalTo("ListBinder annotated with @com.google.inject.name.Named(value=name) with default priority")); + + ListBinder objectListBinder = ListBinder.build(binder(), Object.class) + .withPriority(1, 2); + assertThat(objectListBinder.toString(), equalTo("ListBinder with priority [1, 2]")); + } + }); + } +} -- cgit v1.2.3