| /* |
| * Copyright 2013-present Facebook, Inc. |
| * |
| * 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.facebook.buck.rules; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import com.facebook.buck.io.ProjectFilesystem; |
| import com.facebook.buck.parser.BuildTargetParser; |
| import com.facebook.buck.rules.coercer.TypeCoercerFactory; |
| import com.facebook.buck.testutil.FakeProjectFilesystem; |
| import com.google.common.base.Optional; |
| |
| import org.junit.Test; |
| |
| import java.lang.reflect.Field; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| |
| public class ParamInfoTest { |
| |
| private Path path = Paths.get("path"); |
| private TypeCoercerFactory typeCoercerFactory = new TypeCoercerFactory(); |
| |
| @Test |
| public void shouldReportWildcardsWithUpperBoundsAsUpperBound() throws NoSuchFieldException { |
| class Example<X extends SourcePath> { |
| @SuppressWarnings("unused") |
| public X path; |
| } |
| |
| Field field = Example.class.getField("path"); |
| ParamInfo<?> info = new ParamInfo<Object>(typeCoercerFactory, field); |
| |
| Class<?> type = info.getResultClass(); |
| assertEquals(SourcePath.class, type); |
| } |
| |
| @Test |
| public void anOptionalFieldMayBeWildcardedWithAnUpperBound() throws NoSuchFieldException { |
| class Example { |
| @SuppressWarnings("unused") |
| public Optional<? extends SourcePath> path; |
| } |
| |
| Field field = Example.class.getField("path"); |
| ParamInfo<?> info = new ParamInfo<Object>(typeCoercerFactory, field); |
| |
| Class<?> type = info.getResultClass(); |
| assertEquals(SourcePath.class, type); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void wildcardedFieldsWithNoUpperBoundAreNotAllowed() throws NoSuchFieldException { |
| class Example { |
| @SuppressWarnings("unused") |
| public Optional<?> bad; |
| } |
| |
| Field field = Example.class.getField("bad"); |
| new ParamInfo<Object>(typeCoercerFactory, field); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void superTypesForGenericsAreNotAllowedEither() throws NoSuchFieldException { |
| class Example { |
| @SuppressWarnings("unused") |
| public Optional<? super SourcePath> bad; |
| } |
| |
| Field field = Example.class.getField("bad"); |
| new ParamInfo<Object>(typeCoercerFactory, field); |
| } |
| |
| @Test |
| public void pythonNamesShouldBeCorrectlyGenerated() throws NoSuchFieldException { |
| @SuppressWarnings("unused") |
| class Example { |
| public String isDefaultName; |
| |
| @Hint(name = "not_the_default_name_123") |
| public String notDefaultName; |
| } |
| |
| ParamInfo<?> info; |
| |
| info = new ParamInfo<Object>(typeCoercerFactory, Example.class.getField("isDefaultName")); |
| assertEquals("is_default_name", info.getPythonName()); |
| |
| info = new ParamInfo<Object>(typeCoercerFactory, Example.class.getField("notDefaultName")); |
| assertEquals("not_the_default_name_123", info.getPythonName()); |
| } |
| |
| @Test |
| public void fieldSetForOptionalFields() throws NoSuchFieldException, ParamInfoException { |
| class Example { |
| public Optional<String> field; |
| } |
| Example example = new Example(); |
| |
| BuildTargetParser buildTargetParser = new BuildTargetParser(); |
| ProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| |
| ParamInfo<?> info = new ParamInfo<Object>(typeCoercerFactory, Example.class.getField("field")); |
| |
| info.set(buildTargetParser, filesystem, path, example, null); |
| assertEquals(Optional.<String>absent(), example.field); |
| |
| info.set(buildTargetParser, filesystem, path, example, ""); |
| assertEquals(Optional.of(""), example.field); |
| |
| info.set(buildTargetParser, filesystem, path, example, "foo"); |
| assertEquals(Optional.of("foo"), example.field); |
| } |
| } |