fix coverage

Author: heltonmc

src/besselk.jl

@@ -215,7 +215,7 @@ Modified Bessel function of the second kind of order nu, ``K_{nu}(x)`` valid for
 """
 function besselk_positive_args(nu, x::T) where T <: Union{Float32, Float64}
     iszero(x) && return T(Inf)
-    
+
     # dispatch to avoid uniform expansion when nu = 0 
     iszero(nu) && return besselk0(x)
 

src/recurrence.jl

@@ -36,7 +36,7 @@ end
     return jnup1, jnu
 end
 
-
+#=
 # currently not used
 # backward recurrence relation for besselk and besseli
 # outputs both (bessel(x, nu_end), bessel(x, nu_end-1)
@@ -50,4 +50,4 @@ end
     end
     return jnup1, jnu
 end
-
+=#

test/besselk_test.jl

@@ -104,6 +104,10 @@ t = [besselk(m, x) for m in m, x in x]
 
 @test besselkx(15, 82.123) ≈ SpecialFunctions.besselk(15, 82.123)*exp(82.123)
 @test besselkx(105, 182.123) ≈ SpecialFunctions.besselk(105, 182.123)*exp(182.123)
+@test besselkx(4, 3.0) ≈ SpecialFunctions.besselk(4, 3.0)*exp(3.0)
+@test besselkx(3.2, 1.1) ≈ SpecialFunctions.besselk(3.2, 1.1)*exp(1.1)
+@test besselkx(8.2, 9.1) ≈ SpecialFunctions.besselk(8.2, 9.1)*exp(9.1)
+
 
 ## Tests for besselk