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Update ISBN verifier #3042

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Merged
merged 2 commits into from
Oct 31, 2025
Merged

Update ISBN verifier #3042

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9fde464
Update ISBN verifier
kahgoh Oct 31, 2025
d0d6189
Merge branch 'main' into update/isbn-verifier
jagdish-15 Oct 31, 2025
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6 changes: 6 additions & 0 deletions exercises/practice/isbn-verifier/.meta/tests.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,12 @@ description = "invalid character in isbn is not treated as zero"
[28025280-2c39-4092-9719-f3234b89c627]
description = "X is only valid as a check digit"

[8005b57f-f194-44ee-88d2-a77ac4142591]
description = "only one check digit is allowed"

[fdb14c99-4cf8-43c5-b06d-eb1638eff343]
description = "X is not substituted by the value 10"

[f6294e61-7e79-46b3-977b-f48789a4945b]
description = "valid isbn without separating dashes"

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14 changes: 14 additions & 0 deletions exercises/practice/isbn-verifier/src/test/java/IsbnVerifierTest.java
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Expand Up @@ -68,6 +68,20 @@ public void xIsOnlyValidAsACheckDigit() {
assertThat(isbnVerifier.isValid("3-598-2X507-9")).isFalse();
}

@Disabled("Remove to run test")
@Test
@DisplayName("only one check digit is allowed")
public void onlyOneCheckDigitIsAllowed() {
assertThat(isbnVerifier.isValid("3-598-21508-96")).isFalse();
}

@Disabled("Remove to run test")
@Test
@DisplayName("X is not substituted by the value 10")
public void xIsNotSubstitutedByTheValue10() {
assertThat(isbnVerifier.isValid("3-598-2X507-5")).isFalse();
}

@Disabled("Remove to run test")
@Test
@DisplayName("valid isbn without separating dashes")
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