S
- the "self" type of this assertion class. Please read "Emulating
'self types' using Java Generics to simplify fluent API implementation" for more details.A
- the type of the "actual" value.public interface FloatingPointNumberAssert<S extends FloatingPointNumberAssert<S,A>,A extends Number> extends NumberAssert<S,A>
Number
s.Modifier and Type | Method and Description |
---|---|
S |
isCloseTo(A expected,
Offset<A> offset)
Verifies that the actual number is close to the given one within the given offset.
If difference is equal to offset value, assertion is considered valid. |
S |
isEqualTo(A expected,
Offset<A> offset)
Verifies that the actual value is close to the given one by less than the given offset.
If difference is equal to offset value, assertion is considered valid. |
S |
isNaN()
Verifies that the actual value is equal to
NaN . |
S |
isNotNaN()
Verifies that the actual value is not equal to
NaN . |
isBetween, isCloseTo, isNegative, isNotNegative, isNotPositive, isNotZero, isPositive, isStrictlyBetween, isZero
S isEqualTo(A expected, Offset<A> offset)
Example with double:
// assertion will pass:
assertThat(8.1).isEqualTo(new Double(8.0), offset(0.2));
// if difference is exactly equals to the offset (0.1), it's ok
assertThat(8.1).isEqualTo(new Double(8.0), offset(0.1));
// within is an alias of offset
assertThat(8.1).isEqualTo(new Double(8.0), within(0.1));
// assertion will fail
assertThat(8.1).isEqualTo(new Double(8.0), offset(0.01));
expected
- the given value to compare the actual value to.offset
- the given positive offset.this
assertion object.NullPointerException
- if the given offset is null
.NullPointerException
- if the expected number is null
.AssertionError
- if the actual value is not equal to the given one.S isCloseTo(A expected, Offset<A> offset)
Example with double:
// assertions will pass:
assertThat(8.1).isCloseTo(new Double(8.0), within(0.2));
// you can use offset if you prefer
assertThat(8.1).isCloseTo(new Double(8.0), offset(0.2));
// if difference is exactly equals to the offset (0.1), it's ok
assertThat(8.1).isCloseTo(new Double(8.0), within(0.1));
// assertion will fail
assertThat(8.1).isCloseTo(new Double(8.0), within(0.01));
isCloseTo
in interface NumberAssert<S extends FloatingPointNumberAssert<S,A>,A extends Number>
expected
- the given number to compare the actual value to.offset
- the given positive offset.this
assertion object.NullPointerException
- if the given offset is null
.NullPointerException
- if the expected number is null
.AssertionError
- if the actual value is not equal to the given one.S isNaN()
NaN
.
Example:
// assertions will pass
assertThat(Double.NaN).isNaN();
assertThat(0.0 / 0.0).isNaN();
assertThat(0.0F * Float.POSITIVE_INFINITY).isNaN();
// assertions will fail
assertThat(1.0).isNaN();
assertThat(-1.0F).isNaN();
AssertionError
- if the actual value is not equal to NaN
.S isNotNaN()
NaN
.
Example:
// assertions will pass
assertThat(1.0).isNotNaN();
assertThat(-1.0F).isNotNaN();
// assertions will fail
assertThat(Double.NaN).isNotNaN();
assertThat(0.0 / 0.0).isNotNaN();
assertThat(0.0F * Float.POSITIVE_INFINITY).isNotNaN();
AssertionError
- if the actual value is equal to NaN
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