Merge pull request #18641 from JuliaLang/ksh/misctest

Few miscellaneous tests

Author: tkelman

test/arrayops.jl

@@ -68,6 +68,8 @@ a[1,1,2,2,1] = 30
 @test a[1,2,1,1,2] == 20
 @test a[1,1,2,2,1] == 30
 
+@test_throws ArgumentError reinterpret(Int8, a)
+
 b = reshape(a, (32,))
 @test b[1]  == 10
 @test b[19] == 20

test/intfuncs.jl

@@ -87,6 +87,7 @@ end
 let n = rand(Int)
     @test ndigits(n) == ndigits(big(n)) == ndigits(n, 10)
 end
+@test ndigits(Int8(5)) == ndigits(5)
 
 @test bin('3') == "110011"
 @test bin('3',7) == "0110011"
@@ -124,10 +125,14 @@ end
 @test count_zeros(Int64(1)) == 63
 
 @test factorial(3) == 6
+@test factorial(Int8(3)) === 6
 @test_throws DomainError factorial(-3)
+@test_throws DomainError factorial(Int8(-3))
 
 @test isqrt(4) == 2
 @test isqrt(5) == 2
+@test isqrt(Int8(4)) === Int8(2)
+@test isqrt(Int8(5)) === Int8(2)
 # issue #4884
 @test isqrt(9223372030926249000) == 3037000498
 @test isqrt(typemax(Int128)) == parse(Int128,"13043817825332782212")

test/numbers.jl

@@ -1020,6 +1020,7 @@ f9085() = typemax(UInt64) != 2.0^64
 
 @test @inferred(rationalize(Int, 3.0, 0.0)) === 3//1
 @test @inferred(rationalize(Int, 3.0, 0)) === 3//1
+@test_throws ArgumentError rationalize(Int, big(3.0), -1.)
 
 for a = -5:5, b = -5:5
     if a == b == 0; continue; end