fix tests

Author: oscardssmith

test/gamma_test.jl

@@ -1,10 +1,12 @@
 for (T, max) in ((Float16, 13), (Float32, 43), (Float64, 170))
-    x = rand(T, 10000)*max
-    @test T.(SpecialFunctions.gamma.(widen.(x))) ≈ Bessels.gamma.(x)
-    if isinteger(x)
-        @test_throws DomainError Bessels.gamma.(-x)
-    else
-        @test T.(SpecialFunctions.gamma.(widen.(-x))) ≈ Bessels.gamma.(-x)
+    v = rand(T, 10000)*max
+    for x in v
+        @test T(SpecialFunctions.gamma(widen(x))) ≈ Bessels.gamma(x)
+        if isinteger(x)
+            @test_throws DomainError Bessels.gamma(-x)
+        else
+            @test T(SpecialFunctions.gamma(widen(-x))) ≈ Bessels.gamma(-x)
+        end
     end
     @test isnan(Bessels.gamma(T(NaN)))
     @test isinf(Bessels.gamma(T(Inf)))