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Add shared test processor

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This commit adds a simple annotation processor that can be used to run
more fine grained assertions.
This commit is contained in:
Stephane Nicoll 2019-02-22 12:00:53 +01:00
parent adea7014a9
commit 4bee913fb2
2 changed files with 69 additions and 33 deletions
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36
spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationprocessor/TypeUtilsTests.java
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@ -18,15 +18,9 @@ package org.springframework.boot.configurationprocessor;
import java.io.IOException;
import java.time.Duration;
import java.util.Set;
import java.util.function.BiConsumer;
import javax.annotation.processing.AbstractProcessor;
import javax.annotation.processing.ProcessingEnvironment;
import javax.annotation.processing.RoundEnvironment;
import javax.annotation.processing.SupportedAnnotationTypes;
import javax.annotation.processing.SupportedSourceVersion;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
@ -35,6 +29,7 @@ import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.springframework.boot.configurationprocessor.TypeUtils.TypeDescriptor;
import org.springframework.boot.configurationprocessor.test.TestableAnnotationProcessor;
import org.springframework.boot.configurationsample.generic.AbstractGenericProperties;
import org.springframework.boot.configurationsample.generic.AbstractIntermediateGenericProperties;
import org.springframework.boot.configurationsample.generic.SimpleGenericProperties;
@ -102,35 +97,10 @@ public class TypeUtilsTests {
private void process(Class<?> target,
BiConsumer<RoundEnvironment, TypeUtils> consumer) throws IOException {
TestProcessor processor = new TestProcessor(consumer);
TestableAnnotationProcessor<TypeUtils> processor = new TestableAnnotationProcessor<>(
consumer, TypeUtils::new);
TestCompiler compiler = new TestCompiler(this.temporaryFolder);
compiler.getTask(target).call(processor);
}
@SupportedAnnotationTypes("*")
@SupportedSourceVersion(SourceVersion.RELEASE_8)
private final class TestProcessor extends AbstractProcessor {
private final BiConsumer<RoundEnvironment, TypeUtils> typeUtilsConsumer;
private TypeUtils typeUtils;
private TestProcessor(BiConsumer<RoundEnvironment, TypeUtils> typeUtils) {
this.typeUtilsConsumer = typeUtils;
}
@Override
public synchronized void init(ProcessingEnvironment env) {
this.typeUtils = new TypeUtils(env);
}
@Override
public boolean process(Set<? extends TypeElement> annotations,
RoundEnvironment roundEnv) {
this.typeUtilsConsumer.accept(roundEnv, this.typeUtils);
return false;
}
}
}

66
spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationprocessor/test/TestableAnnotationProcessor.java Normal file
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@ -0,0 +1,66 @@
/*
* Copyright 2012-2019 the original author or authors.
*
* 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.springframework.boot.configurationprocessor.test;
import java.util.Set;
import java.util.function.BiConsumer;
import java.util.function.Function;
import javax.annotation.processing.AbstractProcessor;
import javax.annotation.processing.ProcessingEnvironment;
import javax.annotation.processing.Processor;
import javax.annotation.processing.RoundEnvironment;
import javax.annotation.processing.SupportedAnnotationTypes;
import javax.annotation.processing.SupportedSourceVersion;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.TypeElement;
/**
* A testable {@link Processor}.
*
* @param <T> the type of element to help writing assertions
* @author Stephane Nicoll
*/
@SupportedAnnotationTypes("*")
@SupportedSourceVersion(SourceVersion.RELEASE_8)
public class TestableAnnotationProcessor<T> extends AbstractProcessor {
private final BiConsumer<RoundEnvironment, T> consumer;
private final Function<ProcessingEnvironment, T> factory;
private T target;
public TestableAnnotationProcessor(BiConsumer<RoundEnvironment, T> consumer,
Function<ProcessingEnvironment, T> factory) {
this.consumer = consumer;
this.factory = factory;
}
@Override
public synchronized void init(ProcessingEnvironment env) {
this.target = this.factory.apply(env);
}
@Override
public boolean process(Set<? extends TypeElement> annotations,
RoundEnvironment roundEnv) {
this.consumer.accept(roundEnv, this.target);
return false;
}
}