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testing: improving PostfixEvaluatorTest #6405

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Merged
merged 3 commits into from
Jul 21, 2025
Merged

testing: improving PostfixEvaluatorTest #6405

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ef82cad
testing: improving PostfixEvaluatorTest
alxkm Jul 17, 2025
bc2d6b9
testing: redundant cases
alxkm Jul 17, 2025
5b6bfc4
Merge branch 'master' into test/PostfixEvaluatorTest
alxkm Jul 20, 2025
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testing: redundant cases
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@alxkm
alxkm committed Jul 17, 2025
commit bc2d6b95b3ba8211c441b690c6e7d6dffcbb79d0
10 changes: 2 additions & 8 deletions src/test/java/com/thealgorithms/stacks/PostfixEvaluatorTest.java
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Expand Up @@ -33,18 +33,12 @@ void testExtraOperands() {
@Test
@DisplayName("Should throw ArithmeticException for division by zero")
void testDivisionByZero() {
assertThrows(ArithmeticException.class, () -> PostfixEvaluator.evaluatePostfix("5 0 /"));
assertThrows(ArithmeticException.class, () -> PostfixEvaluator.evaluatePostfix("1 0 /"));
}

@Test
@DisplayName("Should throw IllegalArgumentException for invalid characters")
void testInvalidToken() {
assertThrows(IllegalArgumentException.class, () -> PostfixEvaluator.evaluatePostfix("5 a +"));
}

@Test
@DisplayName("Should throw EmptyStackException for empty input")
void testEmptyInput() {
assertThrows(EmptyStackException.class, () -> PostfixEvaluator.evaluatePostfix(""));
assertThrows(IllegalArgumentException.class, () -> PostfixEvaluator.evaluatePostfix("1 a +"));
}
}
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