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MimeTypeTests.java
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MimeTypeTests.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.util;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;
import org.junit.jupiter.api.Test;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.support.DefaultConversionService;
import org.springframework.core.testfixture.io.SerializationTestUtils;
import static java.util.Collections.singletonMap;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
/**
* Unit tests for {@link MimeType}.
*
* @author Arjen Poutsma
* @author Juergen Hoeller
* @author Sam Brannen
* @author Dimitrios Liapis
*/
class MimeTypeTests {
@Test
void slashInSubtype() {
assertThatIllegalArgumentException().isThrownBy(() ->
new MimeType("text", "/"));
}
@Test
void valueOfNoSubtype() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeType.valueOf("audio"));
}
@Test
void valueOfNoSubtypeSlash() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeType.valueOf("audio/"));
}
@Test
void valueOfIllegalType() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeType.valueOf("audio(/basic"));
}
@Test
void valueOfIllegalSubtype() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeType.valueOf("audio/basic)"));
}
@Test
void valueOfIllegalCharset() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeType.valueOf("text/html; charset=foo-bar"));
}
@Test
void parseCharset() {
String s = "text/html; charset=iso-8859-1";
MimeType mimeType = MimeType.valueOf(s);
assertThat(mimeType.getType()).as("Invalid type").isEqualTo("text");
assertThat(mimeType.getSubtype()).as("Invalid subtype").isEqualTo("html");
assertThat(mimeType.getCharset()).as("Invalid charset").isEqualTo(StandardCharsets.ISO_8859_1);
}
@Test
void parseQuotedCharset() {
String s = "application/xml;charset=\"utf-8\"";
MimeType mimeType = MimeType.valueOf(s);
assertThat(mimeType.getType()).as("Invalid type").isEqualTo("application");
assertThat(mimeType.getSubtype()).as("Invalid subtype").isEqualTo("xml");
assertThat(mimeType.getCharset()).as("Invalid charset").isEqualTo(StandardCharsets.UTF_8);
}
@Test
void parseQuotedSeparator() {
String s = "application/xop+xml;charset=utf-8;type=\"application/soap+xml;action=\\\"https://x.y.z\\\"\"";
MimeType mimeType = MimeType.valueOf(s);
assertThat(mimeType.getType()).as("Invalid type").isEqualTo("application");
assertThat(mimeType.getSubtype()).as("Invalid subtype").isEqualTo("xop+xml");
assertThat(mimeType.getCharset()).as("Invalid charset").isEqualTo(StandardCharsets.UTF_8);
assertThat(mimeType.getParameter("type")).isEqualTo("\"application/soap+xml;action=\\\"https://x.y.z\\\"\"");
}
@Test
void withConversionService() {
ConversionService conversionService = new DefaultConversionService();
assertThat(conversionService.canConvert(String.class, MimeType.class)).isTrue();
MimeType mimeType = MimeType.valueOf("application/xml");
assertThat(conversionService.convert("application/xml", MimeType.class)).isEqualTo(mimeType);
}
@Test
void includes() {
MimeType textPlain = MimeTypeUtils.TEXT_PLAIN;
assertThat(textPlain.includes(textPlain)).as("Equal types is not inclusive").isTrue();
MimeType allText = new MimeType("text");
assertThat(allText.includes(textPlain)).as("All subtypes is not inclusive").isTrue();
assertThat(textPlain.includes(allText)).as("All subtypes is inclusive").isFalse();
assertThat(MimeTypeUtils.ALL.includes(textPlain)).as("All types is not inclusive").isTrue();
assertThat(textPlain.includes(MimeTypeUtils.ALL)).as("All types is inclusive").isFalse();
assertThat(MimeTypeUtils.ALL.includes(textPlain)).as("All types is not inclusive").isTrue();
assertThat(textPlain.includes(MimeTypeUtils.ALL)).as("All types is inclusive").isFalse();
MimeType applicationSoapXml = new MimeType("application", "soap+xml");
MimeType applicationWildcardXml = new MimeType("application", "*+xml");
MimeType suffixXml = new MimeType("application", "x.y+z+xml"); // SPR-15795
assertThat(applicationSoapXml.includes(applicationSoapXml)).isTrue();
assertThat(applicationWildcardXml.includes(applicationWildcardXml)).isTrue();
assertThat(applicationWildcardXml.includes(suffixXml)).isTrue();
assertThat(applicationWildcardXml.includes(applicationSoapXml)).isTrue();
assertThat(applicationSoapXml.includes(applicationWildcardXml)).isFalse();
assertThat(suffixXml.includes(applicationWildcardXml)).isFalse();
assertThat(applicationWildcardXml.includes(MimeTypeUtils.APPLICATION_JSON)).isFalse();
}
@Test
void isCompatible() {
MimeType textPlain = MimeTypeUtils.TEXT_PLAIN;
assertThat(textPlain.isCompatibleWith(textPlain)).as("Equal types is not compatible").isTrue();
MimeType allText = new MimeType("text");
assertThat(allText.isCompatibleWith(textPlain)).as("All subtypes is not compatible").isTrue();
assertThat(textPlain.isCompatibleWith(allText)).as("All subtypes is not compatible").isTrue();
assertThat(MimeTypeUtils.ALL.isCompatibleWith(textPlain)).as("All types is not compatible").isTrue();
assertThat(textPlain.isCompatibleWith(MimeTypeUtils.ALL)).as("All types is not compatible").isTrue();
assertThat(MimeTypeUtils.ALL.isCompatibleWith(textPlain)).as("All types is not compatible").isTrue();
assertThat(textPlain.isCompatibleWith(MimeTypeUtils.ALL)).as("All types is compatible").isTrue();
MimeType applicationSoapXml = new MimeType("application", "soap+xml");
MimeType applicationWildcardXml = new MimeType("application", "*+xml");
MimeType suffixXml = new MimeType("application", "x.y+z+xml"); // SPR-15795
assertThat(applicationSoapXml.isCompatibleWith(applicationSoapXml)).isTrue();
assertThat(applicationWildcardXml.isCompatibleWith(applicationWildcardXml)).isTrue();
assertThat(applicationWildcardXml.isCompatibleWith(suffixXml)).isTrue();
assertThat(applicationWildcardXml.isCompatibleWith(applicationSoapXml)).isTrue();
assertThat(applicationSoapXml.isCompatibleWith(applicationWildcardXml)).isTrue();
assertThat(suffixXml.isCompatibleWith(applicationWildcardXml)).isTrue();
assertThat(applicationWildcardXml.isCompatibleWith(MimeTypeUtils.APPLICATION_JSON)).isFalse();
}
@Test
void testToString() {
MimeType mimeType = new MimeType("text", "plain");
String result = mimeType.toString();
assertThat(result).as("Invalid toString() returned").isEqualTo("text/plain");
}
@Test
void parseMimeType() {
String s = "audio/*";
MimeType mimeType = MimeTypeUtils.parseMimeType(s);
assertThat(mimeType.getType()).as("Invalid type").isEqualTo("audio");
assertThat(mimeType.getSubtype()).as("Invalid subtype").isEqualTo("*");
}
@Test
void parseMimeTypeNoSubtype() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio"));
}
@Test
void parseMimeTypeNoSubtypeSlash() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio/"));
}
@Test
void parseMimeTypeTypeRange() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("*/json"));
}
@Test
void parseMimeTypeIllegalType() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio(/basic"));
}
@Test
void parseMimeTypeIllegalSubtype() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio/basic)"));
}
@Test
void parseMimeTypeMissingTypeAndSubtype() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType(" ;a=b"));
}
@Test
void parseMimeTypeEmptyParameterAttribute() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio/*;=value"));
}
@Test
void parseMimeTypeEmptyParameterValue() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio/*;attr="));
}
@Test
void parseMimeTypeIllegalParameterAttribute() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio/*;attr<=value"));
}
@Test
void parseMimeTypeIllegalParameterValue() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio/*;attr=v>alue"));
}
@Test
void parseMimeTypeIllegalCharset() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("text/html; charset=foo-bar"));
}
@Test // SPR-8917
void parseMimeTypeQuotedParameterValue() {
MimeType mimeType = MimeTypeUtils.parseMimeType("audio/*;attr=\"v>alue\"");
assertThat(mimeType.getParameter("attr")).isEqualTo("\"v>alue\"");
}
@Test // SPR-8917
void parseMimeTypeSingleQuotedParameterValue() {
MimeType mimeType = MimeTypeUtils.parseMimeType("audio/*;attr='v>alue'");
assertThat(mimeType.getParameter("attr")).isEqualTo("'v>alue'");
}
@Test // SPR-16630
void parseMimeTypeWithSpacesAroundEquals() {
MimeType mimeType = MimeTypeUtils.parseMimeType("multipart/x-mixed-replace;boundary = --myboundary");
assertThat(mimeType.getParameter("boundary")).isEqualTo("--myboundary");
}
@Test // SPR-16630
void parseMimeTypeWithSpacesAroundEqualsAndQuotedValue() {
MimeType mimeType = MimeTypeUtils.parseMimeType("text/plain; foo = \" bar \" ");
assertThat(mimeType.getParameter("foo")).isEqualTo("\" bar \"");
}
@Test
void parseMimeTypeIllegalQuotedParameterValue() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType("audio/*;attr=\""));
}
@Test
void parseMimeTypeNull() {
assertThatExceptionOfType(InvalidMimeTypeException.class).isThrownBy(() ->
MimeTypeUtils.parseMimeType(null));
}
@Test
void parseMimeTypes() {
String s = "text/plain, text/html, text/x-dvi, text/x-c";
List<MimeType> mimeTypes = MimeTypeUtils.parseMimeTypes(s);
assertThat(mimeTypes).as("No mime types returned").isNotNull();
assertThat(mimeTypes.size()).as("Invalid amount of mime types").isEqualTo(4);
mimeTypes = MimeTypeUtils.parseMimeTypes(null);
assertThat(mimeTypes).as("No mime types returned").isNotNull();
assertThat(mimeTypes.size()).as("Invalid amount of mime types").isEqualTo(0);
}
@Test // gh-23241
void parseMimeTypesWithTrailingComma() {
List<MimeType> mimeTypes = MimeTypeUtils.parseMimeTypes("text/plain, text/html,");
assertThat(mimeTypes).as("No mime types returned").isNotNull();
assertThat(mimeTypes.size()).as("Incorrect number of mime types").isEqualTo(2);
}
@Test // SPR-17459
void parseMimeTypesWithQuotedParameters() {
testWithQuotedParameters("foo/bar;param=\",\"");
testWithQuotedParameters("foo/bar;param=\"s,a,\"");
testWithQuotedParameters("foo/bar;param=\"s,\"", "text/x-c");
testWithQuotedParameters("foo/bar;param=\"a\\\"b,c\"");
testWithQuotedParameters("foo/bar;param=\"\\\\\"");
testWithQuotedParameters("foo/bar;param=\"\\,\\\"");
}
@Test
void parseSubtypeSuffix() {
MimeType type = new MimeType("application", "vdn.something+json");
assertThat(type.getSubtypeSuffix()).isEqualTo("json");
type = new MimeType("application", "vdn.something");
assertThat(type.getSubtypeSuffix()).isNull();
type = new MimeType("application", "vdn.something+");
assertThat(type.getSubtypeSuffix()).isEqualTo("");
type = new MimeType("application", "vdn.some+thing+json");
assertThat(type.getSubtypeSuffix()).isEqualTo("json");
}
@Test // gh-25350
void wildcardSubtypeCompatibleWithSuffix() {
MimeType applicationStar = new MimeType("application", "*");
MimeType applicationVndJson = new MimeType("application", "vnd.something+json");
assertThat(applicationStar.isCompatibleWith(applicationVndJson)).isTrue();
}
private void testWithQuotedParameters(String... mimeTypes) {
String s = String.join(",", mimeTypes);
List<MimeType> actual = MimeTypeUtils.parseMimeTypes(s);
assertThat(actual.size()).isEqualTo(mimeTypes.length);
for (int i = 0; i < mimeTypes.length; i++) {
assertThat(actual.get(i).toString()).isEqualTo(mimeTypes[i]);
}
}
@Test
void compareTo() {
MimeType audioBasic = new MimeType("audio", "basic");
MimeType audio = new MimeType("audio");
MimeType audioWave = new MimeType("audio", "wave");
MimeType audioBasicLevel = new MimeType("audio", "basic", singletonMap("level", "1"));
// equal
assertThat(audioBasic.compareTo(audioBasic)).as("Invalid comparison result").isEqualTo(0);
assertThat(audio.compareTo(audio)).as("Invalid comparison result").isEqualTo(0);
assertThat(audioBasicLevel.compareTo(audioBasicLevel)).as("Invalid comparison result").isEqualTo(0);
assertThat(audioBasicLevel.compareTo(audio) > 0).as("Invalid comparison result").isTrue();
List<MimeType> expected = new ArrayList<>();
expected.add(audio);
expected.add(audioBasic);
expected.add(audioBasicLevel);
expected.add(audioWave);
List<MimeType> result = new ArrayList<>(expected);
Random rnd = new Random();
// shuffle & sort 10 times
for (int i = 0; i < 10; i++) {
Collections.shuffle(result, rnd);
Collections.sort(result);
for (int j = 0; j < result.size(); j++) {
assertThat(result.get(j)).as("Invalid media type at " + j + ", run " + i).isSameAs(expected.get(j));
}
}
}
@Test
void compareToCaseSensitivity() {
MimeType m1 = new MimeType("audio", "basic");
MimeType m2 = new MimeType("Audio", "Basic");
assertThat(m1.compareTo(m2)).as("Invalid comparison result").isEqualTo(0);
assertThat(m2.compareTo(m1)).as("Invalid comparison result").isEqualTo(0);
m1 = new MimeType("audio", "basic", singletonMap("foo", "bar"));
m2 = new MimeType("audio", "basic", singletonMap("Foo", "bar"));
assertThat(m1.compareTo(m2)).as("Invalid comparison result").isEqualTo(0);
assertThat(m2.compareTo(m1)).as("Invalid comparison result").isEqualTo(0);
m1 = new MimeType("audio", "basic", singletonMap("foo", "bar"));
m2 = new MimeType("audio", "basic", singletonMap("foo", "Bar"));
assertThat(m1.compareTo(m2) != 0).as("Invalid comparison result").isTrue();
assertThat(m2.compareTo(m1) != 0).as("Invalid comparison result").isTrue();
}
@Test
void isMoreSpecific() {
MimeType audioBasic = new MimeType("audio", "basic");
MimeType audio = new MimeType("audio");
MimeType audioWave = new MimeType("audio", "wave");
MimeType audioBasicLevel = new MimeType("audio", "basic", singletonMap("level", "1"));
assertThat(audioBasic.isMoreSpecific(audioBasicLevel)).isFalse();
assertThat(audioBasicLevel.isMoreSpecific(audioBasic)).isTrue();
assertThat(audio.isMoreSpecific(MimeTypeUtils.ALL)).isTrue();
assertThat(MimeTypeUtils.ALL.isMoreSpecific(audio)).isFalse();
assertThat(audioBasicLevel.isMoreSpecific(audioBasic)).isTrue();
assertThat(audioBasic.isMoreSpecific(audioBasicLevel)).isFalse();
assertThat(audioBasic.isMoreSpecific(MimeTypeUtils.TEXT_HTML)).isFalse();
assertThat(audioBasic.isMoreSpecific(audioWave)).isFalse();
assertThat(audioBasicLevel.isMoreSpecific(MimeTypeUtils.TEXT_HTML)).isFalse();
}
@Test
void isLessSpecific() {
MimeType audioBasic = new MimeType("audio", "basic");
MimeType audio = new MimeType("audio");
MimeType audioWave = new MimeType("audio", "wave");
MimeType audioBasicLevel = new MimeType("audio", "basic", singletonMap("level", "1"));
assertThat(audioBasic.isLessSpecific(audioBasicLevel)).isTrue();
assertThat(audioBasicLevel.isLessSpecific(audioBasic)).isFalse();
assertThat(audio.isLessSpecific(MimeTypeUtils.ALL)).isFalse();
assertThat(MimeTypeUtils.ALL.isLessSpecific(audio)).isTrue();
assertThat(audioBasicLevel.isLessSpecific(audioBasic)).isFalse();
assertThat(audioBasic.isLessSpecific(audioBasicLevel)).isTrue();
assertThat(audioBasic.isLessSpecific(MimeTypeUtils.TEXT_HTML)).isFalse();
assertThat(audioBasic.isLessSpecific(audioWave)).isFalse();
assertThat(audioBasicLevel.isLessSpecific(MimeTypeUtils.TEXT_HTML)).isFalse();
}
@Test
void sortBySpecificity() {
MimeType audioBasic = new MimeType("audio", "basic");
MimeType audio = new MimeType("audio");
MimeType audioWave = new MimeType("audio", "wave");
MimeType audioBasicLevel = new MimeType("audio", "basic", singletonMap("level", "1"));
List<MimeType> mimeTypes = new ArrayList<>(List.of(MimeTypeUtils.ALL, audio, audioWave, audioBasic,
audioBasicLevel));
MimeTypeUtils.sortBySpecificity(mimeTypes);
assertThat(mimeTypes).containsExactly(audioWave, audioBasicLevel, audioBasic, audio, MimeTypeUtils.ALL);
}
@Test // SPR-13157
void equalsIsCaseInsensitiveForCharsets() {
MimeType m1 = new MimeType("text", "plain", singletonMap("charset", "UTF-8"));
MimeType m2 = new MimeType("text", "plain", singletonMap("charset", "utf-8"));
assertThat(m2).isEqualTo(m1);
assertThat(m1).isEqualTo(m2);
assertThat(m1.compareTo(m2)).isEqualTo(0);
assertThat(m2.compareTo(m1)).isEqualTo(0);
}
@Test // gh-26127
void serialize() throws Exception {
MimeType original = new MimeType("text", "plain", StandardCharsets.UTF_8);
MimeType deserialized = SerializationTestUtils.serializeAndDeserialize(original);
assertThat(deserialized).isEqualTo(original);
assertThat(original).isEqualTo(deserialized);
}
}