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Incorporate the class Upper from string package #1952

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Merged
ayaankhan98 merged 1 commit into from
Dec 1, 2020
Merged

Incorporate the class Upper from string package #1952

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20 changes: 20 additions & 0 deletions src/main/java/com/string/Upper.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
package com.string;

public class Upper {

/**
* Converts all of the characters in this {@code String} to upper case
*
* @param s the string to convert
* @return the {@code String}, converted to uppercase.
*/
public static String toUpperCase(String s) {
char[] values = s.toCharArray();
for (int i = 0; i < values.length; ++i) {
if (Character.isLetter(values[i]) && Character.isLowerCase(values[i])) {
values[i] = Character.toUpperCase(values[i]);
}
}
return new String(values);
}
}
15 changes: 15 additions & 0 deletions src/test/java/com/string/UpperTest.java
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package com.string;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

class UpperTest extends Upper {

@Test
void testUpper() {
Assertions.assertEquals(toUpperCase("abc"), ("abc").toUpperCase(), "The strings are equals");
//Assertions fail for functional reasons
Assertions.assertEquals(toUpperCase("abc"), "abc", "The strings are not equals");
}

}