Spock - approximate comparisions
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I’ve been looking for the Spock equivalent of the following convenience method in JUnit whereby you can do “approximate” comparisons. Does anyone know if such a thing exists?
/**
* Asserts that two doubles or floats are equal to within a positive delta.
*/
assertEquals(double expected, double actual, double delta)
grails junit spock
edited Nov 22 '18 at 23:34
Dónal
124k156487753
asked Nov 22 '18 at 14:19
dredre
4981621
add a comment |
I’ve been looking for the Spock equivalent of the following convenience method in JUnit whereby you can do “approximate” comparisons. Does anyone know if such a thing exists?
/**
* Asserts that two doubles or floats are equal to within a positive delta.
*/
assertEquals(double expected, double actual, double delta)
grails junit spock
edited Nov 22 '18 at 23:34
Dónal
124k156487753
asked Nov 22 '18 at 14:19
dredre
4981621
You may want to use Hamcrest matchers.
– Jeff Scott Brown
Nov 22 '18 at 15:49
add a comment |
I’ve been looking for the Spock equivalent of the following convenience method in JUnit whereby you can do “approximate” comparisons. Does anyone know if such a thing exists?
/**
* Asserts that two doubles or floats are equal to within a positive delta.
*/
assertEquals(double expected, double actual, double delta)
grails junit spock
edited Nov 22 '18 at 23:34
Dónal
124k156487753
asked Nov 22 '18 at 14:19
dredre
4981621
I’ve been looking for the Spock equivalent of the following convenience method in JUnit whereby you can do “approximate” comparisons. Does anyone know if such a thing exists?
/**
* Asserts that two doubles or floats are equal to within a positive delta.
*/
assertEquals(double expected, double actual, double delta)
grails junit spock
grails junit spock
edited Nov 22 '18 at 23:34
Dónal
124k156487753
asked Nov 22 '18 at 14:19
dredre
4981621
edited Nov 22 '18 at 23:34
Dónal
124k156487753
asked Nov 22 '18 at 14:19
dredre
4981621
edited Nov 22 '18 at 23:34
Dónal
124k156487753
edited Nov 22 '18 at 23:34
Dónal
124k156487753
edited Nov 22 '18 at 23:34
Dónal
124k156487753
124k156487753
asked Nov 22 '18 at 14:19
dredre
4981621
asked Nov 22 '18 at 14:19
dredre
4981621
asked Nov 22 '18 at 14:19
dredre
4981621
4981621
You may want to use Hamcrest matchers.
– Jeff Scott Brown
Nov 22 '18 at 15:49
add a comment |
You may want to use Hamcrest matchers.
– Jeff Scott Brown
Nov 22 '18 at 15:49
You may want to use Hamcrest matchers.
– Jeff Scott Brown
Nov 22 '18 at 15:49
You may want to use Hamcrest matchers.
– Jeff Scott Brown
Nov 22 '18 at 15:49
add a comment |
2 Answers
2
active
oldest
votes
There is build in function for that, described in official docs:
when:
def x = computeValue()
then:
expect x, closeTo(42, 0.01)
Check the specs.
answered Nov 22 '18 at 20:33
Michal_SzulcMichal_Szulc
2,30832145
This answers the question more specifically. Thanks @Michal_Szulc
– dre
Nov 23 '18 at 12:40
See also Spock release notes mentioning Hamcrest support here and there.
– kriegaex
Dec 20 '18 at 6:49
add a comment |
I don't know if there's a Spock equivalent but it's easy to write your own
class Foo extends Specification {
private boolean compareApproximately(Number expected, Number actual, Number delta) {
Math.abs(expected - actual) <= delta
}
def "approximate test"() {
expect:
compareApproximately(4, 4.5, 1)
!compareApproximately(4, 4.5, 0.1)
}
}
In practice, you'd probably want to make compareApproximately reusable across specs by defining it in a trait, subclass of Specification, or a static method in a utility class.
answered Nov 22 '18 at 16:24
DónalDónal
124k156487753
1
Ah.. the infamous Murtag! Indeed you are powerful. Internet points for you!!!
– dre
Nov 22 '18 at 16:27
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
There is build in function for that, described in official docs:
when:
def x = computeValue()
then:
expect x, closeTo(42, 0.01)
Check the specs.
answered Nov 22 '18 at 20:33
Michal_SzulcMichal_Szulc
2,30832145
This answers the question more specifically. Thanks @Michal_Szulc
– dre
Nov 23 '18 at 12:40
See also Spock release notes mentioning Hamcrest support here and there.
– kriegaex
Dec 20 '18 at 6:49
add a comment |
There is build in function for that, described in official docs:
when:
def x = computeValue()
then:
expect x, closeTo(42, 0.01)
Check the specs.
answered Nov 22 '18 at 20:33
Michal_SzulcMichal_Szulc
2,30832145
This answers the question more specifically. Thanks @Michal_Szulc
– dre
Nov 23 '18 at 12:40
See also Spock release notes mentioning Hamcrest support here and there.
– kriegaex
Dec 20 '18 at 6:49
add a comment |
There is build in function for that, described in official docs:
when:
def x = computeValue()
then:
expect x, closeTo(42, 0.01)
Check the specs.
answered Nov 22 '18 at 20:33
Michal_SzulcMichal_Szulc
2,30832145
There is build in function for that, described in official docs:
when:
def x = computeValue()
then:
expect x, closeTo(42, 0.01)
Check the specs.
answered Nov 22 '18 at 20:33
Michal_SzulcMichal_Szulc
2,30832145
answered Nov 22 '18 at 20:33
Michal_SzulcMichal_Szulc
2,30832145
answered Nov 22 '18 at 20:33
Michal_SzulcMichal_Szulc
2,30832145
answered Nov 22 '18 at 20:33
Michal_SzulcMichal_Szulc
2,30832145
2,30832145
This answers the question more specifically. Thanks @Michal_Szulc
– dre
Nov 23 '18 at 12:40
See also Spock release notes mentioning Hamcrest support here and there.
– kriegaex
Dec 20 '18 at 6:49
add a comment |
This answers the question more specifically. Thanks @Michal_Szulc
– dre
Nov 23 '18 at 12:40
See also Spock release notes mentioning Hamcrest support here and there.
– kriegaex
Dec 20 '18 at 6:49
This answers the question more specifically. Thanks @Michal_Szulc
– dre
Nov 23 '18 at 12:40
This answers the question more specifically. Thanks @Michal_Szulc
– dre
Nov 23 '18 at 12:40
See also Spock release notes mentioning Hamcrest support here and there.
– kriegaex
Dec 20 '18 at 6:49
See also Spock release notes mentioning Hamcrest support here and there.
– kriegaex
Dec 20 '18 at 6:49
add a comment |
I don't know if there's a Spock equivalent but it's easy to write your own
class Foo extends Specification {
private boolean compareApproximately(Number expected, Number actual, Number delta) {
Math.abs(expected - actual) <= delta
}
def "approximate test"() {
expect:
compareApproximately(4, 4.5, 1)
!compareApproximately(4, 4.5, 0.1)
}
}
In practice, you'd probably want to make compareApproximately reusable across specs by defining it in a trait, subclass of Specification, or a static method in a utility class.
answered Nov 22 '18 at 16:24
DónalDónal
124k156487753
1
Ah.. the infamous Murtag! Indeed you are powerful. Internet points for you!!!
– dre
Nov 22 '18 at 16:27
add a comment |
I don't know if there's a Spock equivalent but it's easy to write your own
class Foo extends Specification {
private boolean compareApproximately(Number expected, Number actual, Number delta) {
Math.abs(expected - actual) <= delta
}
def "approximate test"() {
expect:
compareApproximately(4, 4.5, 1)
!compareApproximately(4, 4.5, 0.1)
}
}
In practice, you'd probably want to make compareApproximately reusable across specs by defining it in a trait, subclass of Specification, or a static method in a utility class.
answered Nov 22 '18 at 16:24
DónalDónal
124k156487753
1
Ah.. the infamous Murtag! Indeed you are powerful. Internet points for you!!!
– dre
Nov 22 '18 at 16:27
add a comment |
I don't know if there's a Spock equivalent but it's easy to write your own
class Foo extends Specification {
private boolean compareApproximately(Number expected, Number actual, Number delta) {
Math.abs(expected - actual) <= delta
}
def "approximate test"() {
expect:
compareApproximately(4, 4.5, 1)
!compareApproximately(4, 4.5, 0.1)
}
}
In practice, you'd probably want to make compareApproximately reusable across specs by defining it in a trait, subclass of Specification, or a static method in a utility class.
answered Nov 22 '18 at 16:24
DónalDónal
124k156487753
I don't know if there's a Spock equivalent but it's easy to write your own
class Foo extends Specification {
private boolean compareApproximately(Number expected, Number actual, Number delta) {
Math.abs(expected - actual) <= delta
}
def "approximate test"() {
expect:
compareApproximately(4, 4.5, 1)
!compareApproximately(4, 4.5, 0.1)
}
}
In practice, you'd probably want to make compareApproximately reusable across specs by defining it in a trait, subclass of Specification, or a static method in a utility class.
answered Nov 22 '18 at 16:24
DónalDónal
124k156487753
edited Nov 22 '18 at 22:20
answered Nov 22 '18 at 16:24
DónalDónal
124k156487753
answered Nov 22 '18 at 16:24
DónalDónal
124k156487753
answered Nov 22 '18 at 16:24
DónalDónal
124k156487753
124k156487753
1
Ah.. the infamous Murtag! Indeed you are powerful. Internet points for you!!!
– dre
Nov 22 '18 at 16:27
add a comment |
1
Ah.. the infamous Murtag! Indeed you are powerful. Internet points for you!!!
– dre
Nov 22 '18 at 16:27
1
1
Ah.. the infamous Murtag! Indeed you are powerful. Internet points for you!!!
– dre
Nov 22 '18 at 16:27
Ah.. the infamous Murtag! Indeed you are powerful. Internet points for you!!!
– dre
Nov 22 '18 at 16:27
add a comment |
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You may want to use Hamcrest matchers.
– Jeff Scott Brown
Nov 22 '18 at 15:49