public class StringTemplates {
 val month = "(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)"
 fun getPattern(): String = """\d{2} $month \d{4}"""
 fun matchString(string: String) : Boolean {
 return string.matches(
 getPattern().toRegex())
 }
}

public class StringTemplatesTest {
 ///region Test suites for executable koans.StringTemplates.matchString
 ///region
 /**
 * @utbot.classUnderTest {@link StringTemplates}
 * @utbot.methodUnderTest {@link StringTemplates#matchString(String)}
 */
 @Test
 @DisplayName("matchString: string = empty string -> return false")
 public void testMatchStringReturnsFalseWithEmptyString() {
 StringTemplates stringTemplates = new StringTemplates();
 boolean actual = stringTemplates.matchString("");
 assertFalse(actual);
 }
 ///endregion
 ///region FUZZER: SUCCESSFUL EXECUTIONS for method matchString(java.lang.String)
 /**
 * @utbot.classUnderTest {@link StringTemplates}
 * @utbot.methodUnderTest {@link StringTemplates#matchString(String)}
 */
 @Test
 @DisplayName("matchString: matchString: string = empty string -> return false")
 public void testMatchStringReturnsFalseWithEmptyString1() {
 StringTemplates stringTemplates = new StringTemplates();
 boolean actual = stringTemplates.matchString("");
 assertFalse(actual);
 }
 ///endregion
 ///endregion
}