fix tests on 1.7 (#253)

Co-authored-by: Johnny Chen <[email protected]>
Co-authored-by: kimikage <[email protected]>

Author: 3 people

test/fixed.jl

@@ -474,7 +474,7 @@ end
     @test length(r) == 256
     QInt1 = Fixed{Int,1}
     @test length(QInt1(0):eps(QInt1):typemax(QInt1)-eps(QInt1)) == typemax(Int)
-    @test Base.unsafe_length(typemin(QInt1):eps(QInt1):typemax(QInt1)-eps(QInt1)) == -1
+    @test_throws OverflowError length(typemin(QInt1):eps(QInt1):typemax(QInt1)-eps(QInt1))
     @test_throws OverflowError length(QInt1(-1):eps(QInt1):typemax(QInt1)-eps(QInt1))
 end
 

test/normed.jl

@@ -477,7 +477,6 @@ end
     NInt1 = Normed{UInt,1}
     @test length(NInt1(0):typemax(NInt1)-oneunit(NInt1)) == typemax(UInt)
     @test_throws OverflowError length(NInt1(0):typemax(NInt1))
-    @test Base.unsafe_length(NInt1(0):typemax(NInt1)) == 0  # overflow
     N64f64 = Normed{UInt128,64}
     @test_broken length(N64f64(0):typemax(N64f64)) == UInt128(typemax(UInt64)) + 1
     @test length(N1f63(2):N1f63(0)) == 0