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LocalizationConsistencyTest.java
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LocalizationConsistencyTest.java
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package org.jabref.logic.l10n;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Serial;
import java.nio.charset.StandardCharsets;
import java.nio.file.DirectoryStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.ResourceBundle;
import java.util.Set;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;
import org.testfx.framework.junit5.ApplicationExtension;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
// Need to run on JavaFX thread since we are parsing FXML files
@ExtendWith(ApplicationExtension.class)
class LocalizationConsistencyTest {
@Test
void allFilesMustBeInLanguages() throws IOException {
String bundle = "JabRef";
// e.g., "<bundle>_en.properties", where <bundle> is [JabRef, Menu]
Pattern propertiesFile = Pattern.compile("%s_.{2,}.properties".formatted(bundle));
Set<String> localizationFiles = new HashSet<>();
try (DirectoryStream<Path> directoryStream = Files.newDirectoryStream(Path.of("src/main/resources/l10n"))) {
for (Path fullPath : directoryStream) {
String fileName = fullPath.getFileName().toString();
if (propertiesFile.matcher(fileName).matches()) {
localizationFiles.add(fileName.substring(bundle.length() + 1, fileName.length() - ".properties".length()));
}
}
}
Set<String> knownLanguages = Stream.of(Language.values())
.map(Language::getId)
.collect(Collectors.toSet());
assertEquals(knownLanguages, localizationFiles, "There are some localization files that are not present in org.jabref.logic.l10n.Language or vice versa!");
}
@Test
void ensureNoDuplicates() {
String bundle = "JabRef";
for (Language lang : Language.values()) {
String propertyFilePath = "/l10n/%s_%s.properties".formatted(bundle, lang.getId());
// read in
DuplicationDetectionProperties properties = new DuplicationDetectionProperties();
try (InputStream is = LocalizationConsistencyTest.class.getResourceAsStream(propertyFilePath)) {
assert is != null;
try (InputStreamReader reader = new InputStreamReader(is, StandardCharsets.UTF_8)) {
properties.load(reader);
}
} catch (IOException e) {
throw new RuntimeException(e);
}
List<String> duplicates = properties.getDuplicates();
assertEquals(Collections.emptyList(), duplicates, "Duplicate keys inside bundle " + bundle + "_" + lang.getId());
}
}
@Test
void keyValueShouldBeEqualForEnglishPropertiesMessages() {
Properties englishKeys = LocalizationParser.getProperties("/l10n/%s_%s.properties".formatted("JabRef", "en"));
for (Map.Entry<Object, Object> entry : englishKeys.entrySet()) {
String expectedKeyEqualsKey = "%s=%s".formatted(entry.getKey(), entry.getKey().toString().replace("\n", "\\n"));
String actualKeyEqualsValue = "%s=%s".formatted(entry.getKey(), entry.getValue().toString().replace("\n", "\\n"));
assertEquals(expectedKeyEqualsKey, actualKeyEqualsValue);
}
}
@Test
void languageKeysShouldNotContainUnderscoresForSpaces() throws IOException {
final List<LocalizationEntry> quotedEntries = LocalizationParser
.findLocalizationParametersStringsInJavaFiles(LocalizationBundleForTest.LANG)
.stream()
.filter(key -> key.getKey().contains("\\_"))
.collect(Collectors.toList());
assertEquals(Collections.emptyList(), quotedEntries,
"Language keys must not use underscores for spaces! Use \"This is a message\" instead of \"This_is_a_message\".\n" +
"Please correct the following entries:\n" +
quotedEntries
.stream()
.map(key -> "\n%s (%s)\n".formatted(key.getKey(), key.getPath()))
.toList());
}
@Test
void languageKeysShouldNotContainHtmlBrAndHtmlP() throws IOException {
final List<LocalizationEntry> entriesWithHtml = LocalizationParser
.findLocalizationParametersStringsInJavaFiles(LocalizationBundleForTest.LANG)
.stream()
.filter(key -> key.getKey().contains("<br>") || key.getKey().contains("<p>"))
.collect(Collectors.toList());
assertEquals(Collections.emptyList(), entriesWithHtml,
"Language keys must not contain HTML <br> or <p>. Use \\n for a line break.\n" +
"Please correct the following entries:\n" +
entriesWithHtml
.stream()
.map(key -> "\n%s (%s)\n".formatted(key.getKey(), key.getPath()))
.toList());
}
@Test
void findMissingLocalizationKeys() throws IOException {
List<LocalizationEntry> missingKeys = new ArrayList<>(LocalizationParser.findMissingKeys(LocalizationBundleForTest.LANG));
assertEquals(Collections.emptyList(), missingKeys,
missingKeys.stream()
.map(key -> LocalizationKey.fromKey(key.getKey()))
.map(key -> "%s=%s".formatted(
key.getEscapedPropertiesKey(),
key.getValueForEnglishPropertiesFile()))
.collect(Collectors.joining("\n",
"""
DETECTED LANGUAGE KEYS WHICH ARE NOT IN THE ENGLISH LANGUAGE FILE
PASTE THESE INTO THE ENGLISH LANGUAGE FILE "JabRef_en.properties"
""",
"\n\n")));
}
@Test
void findObsoleteLocalizationKeys() throws IOException {
Set<String> obsoleteKeys = LocalizationParser.findObsolete(LocalizationBundleForTest.LANG);
assertEquals(Collections.emptySet(), obsoleteKeys,
obsoleteKeys.stream().collect(Collectors.joining("\n",
"Obsolete keys found in language properties file: \n\n",
"""
1. CHECK IF THE KEY IS REALLY NOT USED ANYMORE
2. REMOVE THESE FROM THE ENGLISH LANGUAGE FILE "JabRef_en.properties"
"""))
);
}
@Test
void localizationParameterMustIncludeAString() throws IOException {
// Must start with "
// - Localization.lang("test")
// - Localization.lang("test %1", var)
// - Localization.lang("Problem downloading from %1", address)
// - Localization.lang("test %1 %2", var1, var2)
Set<LocalizationEntry> keys = LocalizationParser.findLocalizationParametersStringsInJavaFiles(LocalizationBundleForTest.LANG);
for (LocalizationEntry e : keys) {
// TODO: Forbidden Localization.lang("test" + var2) not covered by the test
// In case this kind of code is found, an error should be reported
// JabRef's infrastructure only supports Localization.lang("Some Message"); and not something else.
assertTrue(e.getKey().startsWith("\""), "Illegal localization parameter found. Must include a String with potential concatenation or replacement parameters. Illegal parameter: Localization.lang(" + e.getKey());
}
keys = LocalizationParser.findLocalizationParametersStringsInJavaFiles(LocalizationBundleForTest.MENU);
for (LocalizationEntry e : keys) {
assertTrue(e.getKey().startsWith("\""), "Illegal localization parameter found. Must include a String with potential concatenation or replacement parameters. Illegal parameter: Localization.lang(" + e.getKey());
}
}
private static Language[] installedLanguages() {
return Language.values();
}
@ParameterizedTest
@MethodSource("installedLanguages")
void resourceBundleExists(Language language) {
Path messagesPropertyFile = Path.of("src/main/resources").resolve(Localization.RESOURCE_PREFIX + "_" + language.getId() + ".properties");
assertTrue(Files.exists(messagesPropertyFile));
}
@ParameterizedTest
@MethodSource("installedLanguages")
void languageCanBeLoaded(Language language) {
Locale oldLocale = Locale.getDefault();
try {
Locale locale = Language.convertToSupportedLocale(language).get();
Locale.setDefault(locale);
ResourceBundle messages = ResourceBundle.getBundle(Localization.RESOURCE_PREFIX, locale);
assertNotNull(messages);
} finally {
Locale.setDefault(oldLocale);
}
}
private static class DuplicationDetectionProperties extends Properties {
@Serial private static final long serialVersionUID = 1L;
private final List<String> duplicates = new ArrayList<>();
DuplicationDetectionProperties() {
super();
}
/**
* Overriding the HashTable put() so we can check for duplicates
*/
@Override
public synchronized Object put(Object key, Object value) {
// Have we seen this key before?
if (containsKey(key)) {
duplicates.add(String.valueOf(key));
}
return super.put(key, value);
}
List<String> getDuplicates() {
return duplicates;
}
}
}