diff --git a/test/floatfuncs.jl b/test/floatfuncs.jl
index e246e8df5cac6..4bed2e18170de 100644
--- a/test/floatfuncs.jl
+++ b/test/floatfuncs.jl
@@ -35,12 +35,6 @@ for elty in (Float16,Float32,Float64)
     @test !isinteger(elty(NaN))
 end
 
-# num2hex, hex2num
-for elty in (Float16,Float32,Float64), _ = 1:10
-    x = rand(elty)
-    @test hex2num(num2hex(x)) ≈ x
-end
-
 # round
 for elty in (Float32,Float64)
     x = rand(elty)
diff --git a/test/intfuncs.jl b/test/intfuncs.jl
index 0c6fc028a11c8..f89c065cfab6f 100644
--- a/test/intfuncs.jl
+++ b/test/intfuncs.jl
@@ -123,7 +123,6 @@ end
 
 @test hex(12) == "c"
 @test hex(-12, 3) == "-00c"
-@test num2hex(1243) == (Int == Int32 ? "000004db" : "00000000000004db")
 
 @test base(2, 5, 7) == "0000101"
 
diff --git a/test/numbers.jl b/test/numbers.jl
index 24fcb24a1864a..a508c0f2580ad 100644
--- a/test/numbers.jl
+++ b/test/numbers.jl
@@ -386,20 +386,6 @@ end
 @test base(12,typemin(Int128)) == "-2a695925806818735399a37a20a31b3534a8"
 @test base(12,typemax(Int128)) == "2a695925806818735399a37a20a31b3534a7"
 
-@test hex2num("3ff0000000000000") == 1.
-@test hex2num("bff0000000000000") == -1.
-@test hex2num("4000000000000000") == 2.
-@test hex2num("7ff0000000000000") == Inf
-@test hex2num("fff0000000000000") == -Inf
-@test isnan(hex2num("7ff8000000000000"))
-@test isnan(hex2num("fff8000000000000"))
-@test hex2num("3f800000") == 1.0f0
-@test hex2num("bf800000") == -1.0f0
-@test hex2num("7f800000") == Inf32
-@test hex2num("ff800000") == -Inf32
-@test isnan(hex2num("7fc00000"))
-@test isnan(hex2num("ffc00000"))
-
 # floating-point printing
 @test repr(1.0) == "1.0"
 @test repr(-1.0) == "-1.0"