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Update Tests to get multiple extensions

This commit is contained in:
rajatgarg 2023-09-06 02:12:57 +05:30
parent f1c7b8b2b0
commit 869b931e73
1 changed files with 31 additions and 14 deletions
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45
core-java-modules/core-java-io/src/test/java/com/baeldung/extension/ExtensionFromMimeTypeUnitTest.java
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@ -1,8 +1,14 @@
package com.baeldung.extension;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.tika.mime.MimeType;
import org.apache.tika.mime.MimeTypeException;
@ -12,36 +18,47 @@ import org.junit.Test;
import com.j256.simplemagic.ContentInfo;
public class ExtensionFromMimeTypeUnitTest {
public static final String PNG_EXT = "image/png";
public static final String JPEG_EXT = "image/jpeg";
@Test
public void whenUsingTika_thenGetFileExtension() throws MimeTypeException {
List<String> SUPPORTED_EXTENSIONS = Arrays.asList(".jpg", ".jpeg", ".jpe", ".jif", ".jfif", ".jfi");
MimeTypes allTypes = MimeTypes.getDefaultMimeTypes();
MimeType type = allTypes.forName(PNG_EXT);
MimeType type = allTypes.forName(JPEG_EXT);
String extension = type.getExtension();
assertEquals(".png", extension);
assertEquals(".jpg", extension);
List<String> supportedExtensions = type.getExtensions();
assertEquals(SUPPORTED_EXTENSIONS, supportedExtensions);
}
@Test
public void whenUsingJodd_thenGetFileExtension() {
String fileExtension = jodd.net.MimeTypes.findExtensionsByMimeTypes(PNG_EXT,false)[0];
assertEquals("png", fileExtension);
String[] supportedExtensions = {"jpeg","jpg","jpe"};
String[] extensionsByMimeTypes = jodd.net.MimeTypes.findExtensionsByMimeTypes(JPEG_EXT, false);
assertArrayEquals(supportedExtensions, extensionsByMimeTypes);
}
@Test
public void whenUsingMimetypesFileTypeMap_thenGetFileExtension() {
ContentInfo contentInfo = new ContentInfo("", PNG_EXT, "", true);
String[] supportedExtensions = {"jpeg","jpg","jpe"};
ContentInfo contentInfo = new ContentInfo("", JPEG_EXT, "", true);
String[] fileExtensions = contentInfo.getFileExtensions();
assertEquals("png", fileExtensions[0]);
assertArrayEquals(supportedExtensions, fileExtensions);
}
@Test
public void whenUsingCustomLogic_thenGetFileExtension() {
Map<String, String> mimeToExtensionMap = new HashMap<>();
mimeToExtensionMap.put("application/pdf", "pdf");
mimeToExtensionMap.put("image/jpeg", "jpg");
mimeToExtensionMap.put("image/png", "png");
String fileExtension = mimeToExtensionMap.get(PNG_EXT);
if (fileExtension!= null)
assertEquals("png", fileExtension);
Map<String, Set<String>> mimeExtensionsMap = new HashMap<>();
Set<String> supportedExtensions = new HashSet<>(Arrays.asList(".jpeg",".jpg",".jpe"));
addMimeExtensions(mimeExtensionsMap, "image/jpeg", ".jpeg");
addMimeExtensions(mimeExtensionsMap, "image/jpeg", ".jpg");
addMimeExtensions(mimeExtensionsMap, "image/jpeg", ".jpe");
String mimeTypeToLookup = "image/jpeg";
Set<String> extensions = mimeExtensionsMap.get(mimeTypeToLookup);
assertEquals(supportedExtensions, extensions);
}
private void addMimeExtensions(Map<String, Set<String>> map, String mimeType, String extension) {
map.computeIfAbsent(mimeType, k -> new HashSet<>()).add(extension);
}
}