start adding some tests for comparison operators

test/comparison_operators.jl

@@ -0,0 +1,25 @@
+@testset verbose = true "Comparison operators" begin
+    @testset "Test ==" begin
+        DACE.init(10, 4)
+
+        x = 1 + DA(1, 1.0)
+        @test 1 == x
+
+        y = DA(1)
+        @test 1 == y
+
+        @test x == y
+    end
+
+    @testset "Test >=" begin
+        DACE.init(10, 4)
+
+        x = 1 + DA(1, 1)
+        y = DA(2)
+        @test y >= x
+        @test y >= 1
+        @test y >= 2
+
+    end
+
+end

test/runtests.jl

@@ -12,4 +12,8 @@ include("utils.jl")
         include("validation_1.jl")
         include("validation_2.jl")
     end
+
+    @testset verbose = true "Operators" begin
+        include("comparison_operators.jl")
+    end
 end