@Test
public void testReverseWordsInString() {
// REVERSE WORDS IN A STRING
String string = "Could you pretty please reverse this sentence";
String check = "sentence this reverse please pretty you Could";
String result = StringFunctions.reverseWordsByCharWithAdditionalStorage(string);
assertTrue(
"Reverse Words By Char w/ Additional Storage error. expect=" + check + " got=" + result,
check.equals(result));
result = StringFunctions.reverseWordsUsingStringTokenizerWithAdditionalStorage(string);
assertTrue(
"Reverse Words Using String Tokenizer w/ Additional Storage error. expect="
+ check
+ " got="
+ result,
check.equals(result));
result = StringFunctions.reverseWordsUsingSplitWithAdditionalStorage(string);
assertTrue(
"Reverse Words Using Split w/ Additional Storage error. expect=" + check + " got=" + result,
check.equals(result));
result = StringFunctions.reverseWordsInPlace(string);
assertTrue(
"Reverse Words In-Place error. expect=" + check + " got=" + result, check.equals(result));
}
@Test
public void testReverseCharsInString() {
// REVERSE CHARS IN A STRING
String string = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
String check = "zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA";
String result = StringFunctions.reverseWithStringConcat(string);
assertTrue(
"Reverse With String Concat error. expect=" + check + " got=" + result,
check.equals(result));
result = StringFunctions.reverseWithStringBuilder(string);
assertTrue(
"Reverse With String String Builder error. expect=" + check + " got=" + result,
check.equals(result));
result = StringFunctions.reverseWithStringBuilderBuiltinMethod(string);
assertTrue(
"Reverse With Built-in error. expect=" + check + " got=" + result, check.equals(result));
result = StringFunctions.reverseWithSwaps(string);
assertTrue(
"Reverse With Swaps error. expect=" + check + " got=" + result, check.equals(result));
result = StringFunctions.reverseWithXOR(string);
assertTrue("Reverse With XOR error. expect=" + check + " got=" + result, check.equals(result));
}
@Test
public void testPermutation1() {
final String string = "abc";
final String[] list = StringFunctions.permutations(string);
Assert.assertTrue(list[0].equals("abc"));
Assert.assertTrue(list[5].equals("cba"));
}
@Test
public void testEditDistance() {
// Edit Distance
String string1 = "kitten";
String string2 = "sitting";
int check = 3;
int result = StringFunctions.levenshteinDistance(string1, string2);
assertTrue("Edit Distance error. expected=" + check + " got=" + result, (check == result));
}
@Test
public void testIsPalinDrone() {
// PALINDROME
String string = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
boolean result = StringFunctions.isPalindromeWithAdditionalStorage(string);
assertFalse(
"Is Palindrome With Additional Storage error. expected=false got=" + result, result);
result = StringFunctions.isPalindromeInPlace(string);
assertFalse("Is Palindrome In Place error. expected=false got=" + result, result);
string = "ABCDEFGHIJKKJIHGFEDCBA";
result = StringFunctions.isPalindromeWithAdditionalStorage(string);
assertTrue("Is Palindrome With Additional Storage error. expected=true got=" + result, result);
result = StringFunctions.isPalindromeInPlace(string);
assertTrue("Is Palindrome In Place error. expected=true got=" + result, result);
}
@Test
public void testGenerateSubSets() {
// COMBINATIONS
String string = "abc";
String[] check = new String[] {"", "c", "b", "cb", "a", "ca", "ba", "cba"};
String[] result = StringFunctions.generateSubsets(string);
assertTrue(
"Generate Subsets error. expected=" + print(check) + " got=" + print(result),
Arrays.equals(check, result));
}
@Test
public void testPermutation2() {
final String string = "abcd";
final String[] list = StringFunctions.permutations(string);
Assert.assertTrue(list[0].equals("abcd"));
Assert.assertTrue(list[5].equals("adcb"));
Assert.assertTrue(list[11].equals("bdca"));
Assert.assertTrue(list[17].equals("cdba"));
Assert.assertTrue(list[23].equals("dcba"));
}