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Handle null input in Maskify #107

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krotname wants to merge 1 commit into from
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Handle null input in Maskify #107

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2 changes: 1 addition & 1 deletion src/main/java/kyu7/Maskify.java
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ public class Maskify {
//7 https://www.codewars.com/kata/5412509bd436bd33920011bc/train/java

public static String maskify(String str) {
if (str.length() < 5) return str;
if (str == null || str.length() < 5) return str;
return "#".repeat(str.length() - 4) + str.substring(str.length() - 4);
}

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5 changes: 5 additions & 0 deletions src/test/java/kyu7/MaskifyTest.java
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Expand Up @@ -17,6 +17,11 @@
import static kyu7.Maskify.*;
@Tag("smoke")
public class MaskifyTest {
@Test
void nullInputShouldRemainNull() {
assertNull(maskify(null));
}

@Test
void smokeTestsShouldExecuteApi() {
quality.SmokeMethodTestHarness.verify(kyu7.Maskify.class);
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