blerer commented on PR #1878:
URL: https://github.com/apache/cassandra/pull/1878#issuecomment-1271573281
What I had in mind was something like:
```
@Test
public void testAbs()
{
assertAbsEquals(1, Int32Type.instance, 1);
assertAbsEquals(0, Int32Type.instance, 0);
assertAbsEquals(3, Int32Type.instance, -3);
assertAbsEquals((byte) 1, ByteType.instance, (byte) 1);
assertAbsEquals((byte) 0, ByteType.instance, (byte) 0);
assertAbsEquals((byte) 3, ByteType.instance, (byte) -3);
assertAbsEquals((short) 1, ShortType.instance, (short) 1);
assertAbsEquals((short) 0, ShortType.instance, (short) 0);
assertAbsEquals((short) 3, ShortType.instance, (short) -3);
assertAbsEquals(1F, FloatType.instance, 1F);
assertAbsEquals(1.5F, FloatType.instance, 1.5F);
assertAbsEquals(0F, FloatType.instance, 0F);
assertAbsEquals(3F, FloatType.instance, -3F);
assertAbsEquals(3.7F, FloatType.instance, -3.7F);
for (AbstractType<Long> type : new AbstractType[]{LongType.instance,
CounterColumnType.instance})
{
assertAbsEquals(1L, LongType.instance, 1L);
assertAbsEquals(0L, LongType.instance, 0L);
assertAbsEquals(3L, LongType.instance, -3L);
}
assertAbsEquals(1.0, DoubleType.instance, 1.0);
assertAbsEquals(1.5, DoubleType.instance, 1.5);
assertAbsEquals(0.0, DoubleType.instance, 0.0);
assertAbsEquals(3.0, DoubleType.instance, -3.0);
assertAbsEquals(3.7, DoubleType.instance, -3.7);
assertAbsEquals(BigInteger.ONE, IntegerType.instance,
BigInteger.ONE);
assertAbsEquals(BigInteger.ZERO, IntegerType.instance,
BigInteger.ZERO);
assertAbsEquals(BigInteger.valueOf(3), IntegerType.instance,
BigInteger.valueOf(-3));
assertAbsEquals(BigDecimal.ONE, DecimalType.instance,
BigDecimal.ONE);
assertAbsEquals(BigDecimal.valueOf(1.5), DecimalType.instance,
BigDecimal.valueOf(1.5));
assertAbsEquals(BigDecimal.ZERO, DecimalType.instance,
BigDecimal.ZERO);
assertAbsEquals(BigDecimal.valueOf(3), DecimalType.instance,
BigDecimal.valueOf(-3));
assertAbsEquals(BigDecimal.valueOf(3.7), DecimalType.instance,
BigDecimal.valueOf(-3.7));
}
private <T extends Number> void assertAbsEquals(T expected,
NumberType<T> inputType, T inputValue)
{
assertFctEquals(MathFcts.absFct(inputType), expected, inputType,
inputValue);
}
private <T extends Number> void assertFctEquals(ScalarFunction fct, T
expected, NumberType<T> inputType, T inputValue)
{
ByteBuffer input = inputType.decompose(inputValue);
assertEquals(expected, inputType.compose(executeFunction(fct,
input)));
}
```
It makes the test a bit easier to read and we test each functions with the
same input values
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