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Added tests for math.jl functions #9568

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Jan 3, 2015
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Added tests for math.jl functions #9568

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19 changes: 19 additions & 0 deletions test/math.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -362,3 +362,22 @@ end
for z in (1.234, 1.234 + 5.678im, [1.234, 5.678])
@test_approx_eq cis(z) exp(im*z)
end

# modf
for elty in (Float32, Float64)
@test_approx_eq modf( convert(elty,1.2) )[1] convert(elty,0.2)
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I guess one slightly more concise syntax for testing approximate equality of a tuple-returning function would be by splatting into an array like @test_approx_eq [modf(convert(elty,1.2))...] elty[0.2, 1.0]. There's more syntax features going on there so maybe that's unnecessarily complicated.

@test_approx_eq modf( convert(elty,1.2) )[2] convert(elty,1.0)
@test_approx_eq modf( convert(elty,1.0) )[1] convert(elty,0.0)
@test_approx_eq modf( convert(elty,1.0) )[2] convert(elty,1.0)
end

# frexp
for elty in (Float32, Float64)
@test frexp( convert(elty,0.5) ) == (convert(elty,0.5),0)
@test frexp( convert(elty,4.0) ) == (convert(elty,0.5),3)
@test_approx_eq frexp( convert(elty,10.5) )[1] convert(elty,0.65625)
@test frexp( convert(elty,10.5) )[2] == 4
@test_approx_eq frexp( [ convert(elty,4.0) convert(elty,10.5) ] )[1][1] convert(elty,0.5)
@test_approx_eq frexp( [ convert(elty,4.0) convert(elty,10.5) ] )[1][2] convert(elty,0.65625)
@test frexp( [ convert(elty,4.0) convert(elty,10.5) ] )[2] == [ 3 4 ]
end