Strings { public static boolean allHasText(String... strings) { checkVarargString(strings); for (String s : strings) { if (!hasText(s)) return false; } return true; } private  Strings(); static boolean isNullOrEmpty(String str); static boolean hasText(String s); static boolean allHasText(String... strings); static boolean allNullOrEmpty(String... strings); static String leftTrim(String s); static String rightTrim(String str); static boolean containsNone(String str, String invalidCharsStr); static boolean containsOnly(String str, String allowedChars); static String repeat(char c, int count); static String repeat(String str, int count); static String reverse(String str); static String insertFromLeft(String str, int interval, String stringToInsert); static String insertFromRight(String str, int interval, String stringToInsert); static String rightPad(String str, int size); static String rightPad(String str, int size, char padChar); static String rightPad(String str, int size, String padStr); static String leftPad(String str, int size); static String leftPad(String str, int size, char padChar); static String subStringUntilFirst(String str, String s); static String subStringUntilLast(String str, String s); static String subStringAfterFirst(String str, String s); static String subStringAfterLast(String str, String s); static String leftPad(String str, int size, String padStr); static String whiteSpacesToSingleSpace(String str); static String eliminateWhiteSpaces(String str); static String concatWithString(String str, Collection<?> collection); static String concatWithString(String str, Object... objects); static String[] separateGrams(String word, int gramSize); static final String EMPTY_STRING; static final String[] EMPTY_STRING_ARRAY; }
@Test public void testIfAllHasText() { assertTrue(allHasText("fg", "a", "hyh")); assertFalse(allHasText("fg", null, "hyh")); assertFalse(allHasText("fg", " ", "hyh")); }
@Test(expected = NullPointerException.class) public void testAllHasTextExceptionNPE() { allHasText(null); }
@Test(expected = IllegalArgumentException.class) public void testIfAllHasTextExceptionIAE() { allHasText(); }