Fix the equals method of JsonPrimitive to work with BigInteger
#2311
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MaicolAntali
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equals method of JsonPrimitive to work with BigIntegerequals method of JsonPrimitive to work withBigInteger
MaicolAntali
changed the title
equals method of JsonPrimitive to work withBigIntegerequals method of JsonPrimitive to work with BigInteger
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We could also create a method called like: public String getNumberAsString() {
return getAsNumber().toString();
}But, I don't know if it's worth |
eamonnmcmanus
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Feb 6, 2023
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Thanks for taking this on!
| public void testEqualsIntegerAndBigInteger() { | ||
| JsonPrimitive a = new JsonPrimitive(5L); | ||
| JsonPrimitive b = new JsonPrimitive(new BigInteger("18446744073709551621")); // 2^64 + 5 | ||
| // Ideally, the following assertion should have failed but the price is too much to pay |
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FWIW I vigorously disagree with this assessment. Saying values are equal when they aren't is pretty bad, and the fix is neither difficult nor expensive.
| // assertFalse(a + " equals " + b, a.equals(b)); | ||
| assertWithMessage("%s equals %s", a, b).that(a.equals(b)).isTrue(); | ||
| JsonPrimitive b = new JsonPrimitive(new BigInteger("18446744073709551621")); | ||
| assertWithMessage("%s not equals %s", a, b).that(a.equals(b)).isFalse(); |
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This may become irrelevant if we start using EqualsTester, but for now could you also check that b.equals(a) is false?
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We could leave it until we implement EqualsTester
eamonnmcmanus
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Feb 6, 2023
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Sep 14, 2024
…oogle#2311) * Fix the `equals` method of `JsonPrimitive` to work with BigInteger * Improve the `equals` & `getAsBigInteger` methods in `JsonPrimitive`
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This PR should fix the issue #2144.
The
getAsNumber().longValue()caused an overflow because theBigIntegerwas converted to along.The idea here is: create a
BigInteger(that's the biggest int we could rappresent) using the string value and then compare it.