/
YamlProcessorTests.java
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/
YamlProcessorTests.java
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/*
* Copyright 2002-2020 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
*
* https://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.beans.factory.config;
import java.net.URL;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.junit.jupiter.api.Test;
import org.yaml.snakeyaml.constructor.ConstructorException;
import org.yaml.snakeyaml.parser.ParserException;
import org.yaml.snakeyaml.scanner.ScannerException;
import org.springframework.core.io.ByteArrayResource;
import static java.util.stream.Collectors.toList;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.assertj.core.api.Assertions.entry;
/**
* Tests for {@link YamlProcessor}.
*
* @author Dave Syer
* @author Juergen Hoeller
* @author Sam Brannen
*/
class YamlProcessorTests {
private final YamlProcessor processor = new YamlProcessor() {};
@Test
void arrayConvertedToIndexedBeanReference() {
setYaml("foo: bar\nbar: [1,2,3]");
this.processor.process((properties, map) -> {
assertThat(properties.size()).isEqualTo(4);
assertThat(properties.get("foo")).isEqualTo("bar");
assertThat(properties.getProperty("foo")).isEqualTo("bar");
assertThat(properties.get("bar[0]")).isEqualTo(1);
assertThat(properties.getProperty("bar[0]")).isEqualTo("1");
assertThat(properties.get("bar[1]")).isEqualTo(2);
assertThat(properties.getProperty("bar[1]")).isEqualTo("2");
assertThat(properties.get("bar[2]")).isEqualTo(3);
assertThat(properties.getProperty("bar[2]")).isEqualTo("3");
});
}
@Test
void stringResource() {
setYaml("foo # a document that is a literal");
this.processor.process((properties, map) -> assertThat(map.get("document")).isEqualTo("foo"));
}
@Test
void badDocumentStart() {
setYaml("foo # a document\nbar: baz");
assertThatExceptionOfType(ParserException.class)
.isThrownBy(() -> this.processor.process((properties, map) -> {}))
.withMessageContaining("line 2, column 1");
}
@Test
void badResource() {
setYaml("foo: bar\ncd\nspam:\n foo: baz");
assertThatExceptionOfType(ScannerException.class)
.isThrownBy(() -> this.processor.process((properties, map) -> {}))
.withMessageContaining("line 3, column 1");
}
@Test
void mapConvertedToIndexedBeanReference() {
setYaml("foo: bar\nbar:\n spam: bucket");
this.processor.process((properties, map) -> {
assertThat(properties.get("bar.spam")).isEqualTo("bucket");
assertThat(properties).hasSize(2);
});
}
@Test
void integerKeyBehaves() {
setYaml("foo: bar\n1: bar");
this.processor.process((properties, map) -> {
assertThat(properties.get("[1]")).isEqualTo("bar");
assertThat(properties).hasSize(2);
});
}
@Test
void integerDeepKeyBehaves() {
setYaml("foo:\n 1: bar");
this.processor.process((properties, map) -> {
assertThat(properties.get("foo[1]")).isEqualTo("bar");
assertThat(properties).hasSize(1);
});
}
@Test
@SuppressWarnings("unchecked")
void flattenedMapIsSameAsPropertiesButOrdered() {
setYaml("cat: dog\nfoo: bar\nbar:\n spam: bucket");
this.processor.process((properties, map) -> {
Map<String, Object> flattenedMap = processor.getFlattenedMap(map);
assertThat(flattenedMap).isInstanceOf(LinkedHashMap.class);
assertThat(properties).hasSize(3);
assertThat(flattenedMap).hasSize(3);
assertThat(properties.get("bar.spam")).isEqualTo("bucket");
assertThat(flattenedMap.get("bar.spam")).isEqualTo("bucket");
Map<String, Object> bar = (Map<String, Object>) map.get("bar");
assertThat(bar.get("spam")).isEqualTo("bucket");
List<Object> keysFromProperties = properties.keySet().stream().collect(toList());
List<String> keysFromFlattenedMap = flattenedMap.keySet().stream().collect(toList());
assertThat(keysFromProperties).containsExactlyInAnyOrderElementsOf(keysFromFlattenedMap);
// Keys in the Properties object are sorted.
assertThat(keysFromProperties).containsExactly("bar.spam", "cat", "foo");
// But the flattened map retains the order from the input.
assertThat(keysFromFlattenedMap).containsExactly("cat", "foo", "bar.spam");
});
}
@Test
void customTypeSupportedByDefault() throws Exception {
URL url = new URL("https://localhost:9000/");
setYaml("value: !!java.net.URL [\"" + url + "\"]");
this.processor.process((properties, map) -> {
assertThat(properties).containsExactly(entry("value", url));
assertThat(map).containsExactly(entry("value", url));
});
}
@Test
void customTypesSupportedDueToExplicitConfiguration() throws Exception {
this.processor.setSupportedTypes(URL.class, String.class);
URL url = new URL("https://localhost:9000/");
setYaml("value: !!java.net.URL [!!java.lang.String [\"" + url + "\"]]");
this.processor.process((properties, map) -> {
assertThat(properties).containsExactly(entry("value", url));
assertThat(map).containsExactly(entry("value", url));
});
}
@Test
void customTypeNotSupportedDueToExplicitConfiguration() {
this.processor.setSupportedTypes(List.class);
setYaml("value: !!java.net.URL [\"https://localhost:9000/\"]");
assertThatExceptionOfType(ConstructorException.class)
.isThrownBy(() -> this.processor.process((properties, map) -> {}))
.withMessageContaining("Unsupported type encountered in YAML document: java.net.URL");
}
private void setYaml(String yaml) {
this.processor.setResources(new ByteArrayResource(yaml.getBytes()));
}
}