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This commit is contained in:
Gary Gregory 2024-09-22 09:24:13 -04:00
parent 0f28590306
commit 13706c851a
1 changed files with 70 additions and 70 deletions
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140
src/test/java/org/apache/commons/lang3/RandomStringUtilsTest.java
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@ -289,6 +289,76 @@ public class RandomStringUtilsTest extends AbstractLangTest {
assertTrue(msg.contains("end"), "Message (" + msg + ") must contain 'end'");
}
/**
* Test {@code RandomStringUtils.random} works appropriately when letters=true
* and the range does not only include ASCII letters.
* Fails with probability less than 2^-40 (in practice this never happens).
*/
@ParameterizedTest
@MethodSource("randomProvider")
void testNonASCIILetters(final RandomStringUtils rsu) {
// Check that the following create a string with 10 characters 0x4e00 (a non-ASCII letter)
String r1 = rsu.next(10, 0x4e00, 0x4e01, true, false);
assertEquals(10, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertEquals(0x4e00, r1.charAt(i), "characters not all equal to 0x4e00");
}
// Same with both letters=true and numbers=true
r1 = rsu.next(10, 0x4e00, 0x4e01, true, true);
assertEquals(10, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertEquals(0x4e00, r1.charAt(i), "characters not all equal to 0x4e00");
}
// Check that at least one letter is not ASCII
boolean found = false;
r1 = rsu.next(40, 'F', 0x3000, true, false);
assertEquals(40, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertTrue(Character.isLetter(r1.charAt(i)), "characters not all letters");
if (r1.charAt(i) > 0x7f) {
found = true;
}
}
assertTrue(found, "no non-ASCII letter generated");
}
/**
* Test {@code RandomStringUtils.random} works appropriately when numbers=true
* and the range does not only include ASCII numbers/digits.
* Fails with probability less than 2^-40 (in practice this never happens).
*/
@ParameterizedTest
@MethodSource("randomProvider")
void testNonASCIINumbers(final RandomStringUtils rsu) {
// Check that the following create a string with 10 characters 0x0660 (a non-ASCII digit)
String r1 = rsu.next(10, 0x0660, 0x0661, false, true);
assertEquals(10, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertEquals(0x0660, r1.charAt(i), "characters not all equal to 0x0660");
}
// Same with both letters=true and numbers=true
r1 = rsu.next(10, 0x0660, 0x0661, true, true);
assertEquals(10, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertEquals(0x0660, r1.charAt(i), "characters not all equal to 0x0660");
}
// Check that at least one letter is not ASCII
boolean found = false;
r1 = rsu.next(40, 'F', 0x3000, false, true);
assertEquals(40, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertTrue(Character.isDigit(r1.charAt(i)), "characters not all numbers");
if (r1.charAt(i) > 0x7f) {
found = true;
}
}
assertTrue(found, "no non-ASCII number generated");
}
/**
* Make sure boundary alpha characters are generated by randomAlphabetic This test will fail randomly with probability = 4 * (51/52)**1000 ~ 1.58E-8
*/
@ -732,74 +802,4 @@ public class RandomStringUtilsTest extends AbstractLangTest {
assertNotEquals(r1, r3);
assertNotEquals(r2, r3);
}
/**
* Test {@code RandomStringUtils.random} works appropriately when letters=true
* and the range does not only include ASCII letters.
* Fails with probability less than 2^-40 (in practice this never happens).
*/
@ParameterizedTest
@MethodSource("randomProvider")
void testNonASCIILetters(final RandomStringUtils rsu) {
// Check that the following create a string with 10 characters 0x4e00 (a non-ASCII letter)
String r1 = rsu.next(10, 0x4e00, 0x4e01, true, false);
assertEquals(10, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertEquals(0x4e00, r1.charAt(i), "characters not all equal to 0x4e00");
}
// Same with both letters=true and numbers=true
r1 = rsu.next(10, 0x4e00, 0x4e01, true, true);
assertEquals(10, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertEquals(0x4e00, r1.charAt(i), "characters not all equal to 0x4e00");
}
// Check that at least one letter is not ASCII
boolean found = false;
r1 = rsu.next(40, 'F', 0x3000, true, false);
assertEquals(40, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertTrue(Character.isLetter(r1.charAt(i)), "characters not all letters");
if (r1.charAt(i) > 0x7f) {
found = true;
}
}
assertTrue(found, "no non-ASCII letter generated");
}
/**
* Test {@code RandomStringUtils.random} works appropriately when numbers=true
* and the range does not only include ASCII numbers/digits.
* Fails with probability less than 2^-40 (in practice this never happens).
*/
@ParameterizedTest
@MethodSource("randomProvider")
void testNonASCIINumbers(final RandomStringUtils rsu) {
// Check that the following create a string with 10 characters 0x0660 (a non-ASCII digit)
String r1 = rsu.next(10, 0x0660, 0x0661, false, true);
assertEquals(10, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertEquals(0x0660, r1.charAt(i), "characters not all equal to 0x0660");
}
// Same with both letters=true and numbers=true
r1 = rsu.next(10, 0x0660, 0x0661, true, true);
assertEquals(10, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertEquals(0x0660, r1.charAt(i), "characters not all equal to 0x0660");
}
// Check that at least one letter is not ASCII
boolean found = false;
r1 = rsu.next(40, 'F', 0x3000, false, true);
assertEquals(40, r1.length(), "wrong length");
for (int i = 0; i < r1.length(); i++) {
assertTrue(Character.isDigit(r1.charAt(i)), "characters not all numbers");
if (r1.charAt(i) > 0x7f) {
found = true;
}
}
assertTrue(found, "no non-ASCII number generated");
}
}