Signal-Android/test/unitTest/java/org/thoughtcrime/securesms/util/UsernameUtilTest.java

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package org.thoughtcrime.securesms.util;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
public class UsernameUtilTest {
@Test
public void checkUsername_tooShort() {
assertEquals(UsernameUtil.InvalidReason.TOO_SHORT, UsernameUtil.checkUsername(null).get());
assertEquals(UsernameUtil.InvalidReason.TOO_SHORT, UsernameUtil.checkUsername("").get());
assertEquals(UsernameUtil.InvalidReason.TOO_SHORT, UsernameUtil.checkUsername("abc").get());
}
@Test
public void checkUsername_tooLong() {
assertEquals(UsernameUtil.InvalidReason.TOO_LONG, UsernameUtil.checkUsername("abcdefghijklmnopqrstuvwxyz1").get());
}
@Test
public void checkUsername_startsWithNumber() {
assertEquals(UsernameUtil.InvalidReason.STARTS_WITH_NUMBER, UsernameUtil.checkUsername("0abcdefg").get());
assertEquals(UsernameUtil.InvalidReason.STARTS_WITH_NUMBER, UsernameUtil.checkUsername("9abcdefg").get());
assertEquals(UsernameUtil.InvalidReason.STARTS_WITH_NUMBER, UsernameUtil.checkUsername("8675309").get());
}
@Test
public void checkUsername_invalidCharacters() {
assertEquals(UsernameUtil.InvalidReason.INVALID_CHARACTERS, UsernameUtil.checkUsername("$abcd").get());
assertEquals(UsernameUtil.InvalidReason.INVALID_CHARACTERS, UsernameUtil.checkUsername(" abcd").get());
assertEquals(UsernameUtil.InvalidReason.INVALID_CHARACTERS, UsernameUtil.checkUsername("ab cde").get());
assertEquals(UsernameUtil.InvalidReason.INVALID_CHARACTERS, UsernameUtil.checkUsername("%%%%%").get());
assertEquals(UsernameUtil.InvalidReason.INVALID_CHARACTERS, UsernameUtil.checkUsername("-----").get());
assertEquals(UsernameUtil.InvalidReason.INVALID_CHARACTERS, UsernameUtil.checkUsername("asĸ_me").get());
assertEquals(UsernameUtil.InvalidReason.INVALID_CHARACTERS, UsernameUtil.checkUsername("+18675309").get());
}
@Test
public void checkUsername_validUsernames() {
assertFalse(UsernameUtil.checkUsername("abcd").isPresent());
assertFalse(UsernameUtil.checkUsername("abcdefghijklmnopqrstuvwxyz").isPresent());
assertFalse(UsernameUtil.checkUsername("ABCDEFGHIJKLMNOPQRSTUVWXYZ").isPresent());
assertFalse(UsernameUtil.checkUsername("web_head").isPresent());
assertFalse(UsernameUtil.checkUsername("Spider_Fan_1991").isPresent());
}
}