Include int tests

test/int.jl

@@ -0,0 +1,68 @@
+@testset "add_to! / add!" begin
+    @test MA.mutability(Int, MA.add_to!, Int, Int) isa MA.NotMutable
+    @test MA.mutability(Int, MA.add!, Int) isa MA.NotMutable
+    a = 5
+    b = 28
+    c = 41
+    @test MA.add_to!(a, b, c) == 69
+    @test MA.add!(b, c) == 69
+    a = 165
+    b = 255
+    @test MA.add!(a, b) == 420
+end
+
+@testset "mul_to! / mul!" begin
+    @test MA.mutability(Int, MA.mul_to!, Int, Int) isa MA.NotMutable
+    @test MA.mutability(Int, MA.mul!, Int) isa MA.NotMutable
+    a = 5
+    b = 23
+    c = 3
+    @test MA.mul_to!(a, b, c) == 69
+    @test MA.mul!(b, c) == 69
+    a = 15
+    b = 28
+    @test MA.mul!(a, b) == 420
+end
+
+@testset "muladd_to! / muladd! / muladd_buf_to! /muladd_buf!" begin
+    @test MA.mutability(Int, MA.muladd_to!, Int, Int, Int) isa MA.NotMutable
+    @test MA.mutability(Int, MA.muladd!, Int, Int) isa MA.NotMutable
+    @test MA.mutability(Int, MA.muladd_buf_to!, Int, Int, Int, Int) isa MA.NotMutable
+    @test MA.mutability(Int, MA.muladd_buf!, Int, Int, Int) isa MA.NotMutable
+    a = 5
+    b = 9
+    c = 3
+    d = 20
+    buf = 24
+    @test MA.muladd_to!(a, b, c, d) == 69
+    @test MA.muladd!(b, c, d) == 69
+    @test MA.muladd_buf_to!(buf, a, b, c, d) == 69
+    @test MA.muladd_buf!(buf, b, c, d) == 69
+    a = 148
+    b = 16
+    c = 17
+    @test MA.muladd!(a, b, c) == 420
+    a = 148
+    b = 16
+    c = 17
+    buf = 56
+    @test MA.muladd_buf!(buf, a, b, c) == 420
+    a = 148
+    b = 16
+    c = 17
+    d = 42
+    buf = 56
+    @test MA.muladd_buf_to!(buf, d, a, b, c) == 420
+end
+
+@testset "zero!" begin
+    @test MA.mutability(Int, MA.zero!) isa MA.NotMutable
+    a = 5
+    @test MA.zero!(a) == 0
+end
+
+@testset "one!" begin
+    @test MA.mutability(Int, MA.one!) isa MA.NotMutable
+    a = 5
+    @test MA.one!(a) == 1
+end

test/runtests.jl

@@ -2,6 +2,9 @@ using Test
 import MutableArithmetics
 const MA = MutableArithmetics
 
+@testset "Int" begin
+    include("int.jl")
+end
 @testset "BigInt" begin
     include("bigint.jl")
 end