Add: julia-0.6.2

Former-commit-id: ccc667cf67d569f3fb3df39aa57c2134755a7551

julia-0.6.2/share/julia/test/combinatorics.jl

@@ -0,0 +1,70 @@
+# This file is a part of Julia. License is MIT: https://julialang.org/license
+
+@testset "binomial" begin
+    @test binomial(5,-1) == 0
+    @test binomial(5,10) == 0
+    @test binomial(5,3) == 10
+    @test binomial(2,1) == 2
+    @test binomial(1,2) == 0
+    @test binomial(-2,1) == -2 # let's agree
+    @test binomial(2,-1) == 0
+
+    #Issue 6154
+    @test binomial(Int32(34), Int32(15)) == binomial(BigInt(34), BigInt(15)) == 1855967520
+    @test binomial(Int64(67), Int64(29)) == binomial(BigInt(67), BigInt(29)) == 7886597962249166160
+    @test binomial(Int128(131), Int128(62)) == binomial(BigInt(131), BigInt(62)) == 157311720980559117816198361912717812000
+    @test_throws InexactError binomial(Int64(67), Int64(30))
+end
+
+@testset "permutations" begin
+    p = shuffle([1:1000;])
+    @test isperm(p)
+    @test all(invperm(invperm(p)) .== p)
+    @test isperm(()) == true
+    @test isperm((1,)) == true
+    @test isperm((2,)) == false
+    @test isperm((1,2)) == true
+    @test isperm((2,1)) == true
+    @test isperm((2,2)) == false
+    @test isperm((1,3)) == false
+    @test invperm(()) == ()
+    @test invperm((1,)) == (1,)
+    @test invperm((1,2)) == (1,2)
+    @test invperm((2,1)) == (2,1)
+    @test_throws ArgumentError invperm((1,3))
+
+    push!(p, 1)
+    @test !isperm(p)
+
+    a = randcycle(10)
+    @test ipermute!(permute!([1:10;], a),a) == [1:10;]
+
+    # PR 12785
+    let a = 2:-1:1
+        @test ipermute!(permute!([1, 2], a), a) == [1, 2]
+    end
+end
+
+@testset "factorial" begin
+    @test factorial(7) == 5040
+    @test factorial(Int8(7)) == 5040
+    @test factorial(UInt8(7)) == 5040
+    @test factorial(Int16(7)) == 5040
+    @test factorial(UInt16(7)) == 5040
+    @test factorial(Int32(7)) == 5040
+    @test factorial(UInt32(7)) == 5040
+    @test factorial(Int64(7)) == 5040
+    @test factorial(UInt64(7)) == 5040
+    @test factorial(Int128(7)) == 5040
+    @test factorial(UInt128(7)) == 5040
+    @test factorial(0) == 1
+    @test_throws DomainError factorial(-1)
+    @test factorial(Int64(20)) == 2432902008176640000
+    # issue #6579
+    @test_throws OverflowError factorial(Int64(21))
+    @test typeof(factorial(Int8(2))) == typeof(factorial(Int8(1)))
+    if Int === Int32
+        @test factorial(Int32(12)) === Int32(479001600)
+        @test_throws OverflowError factorial(Int32(13))
+    end
+end