test: add tests for integers

test/type/integer_test.exs

@@ -0,0 +1,40 @@
+defmodule Ash.Test.Type.IntegerTest do
+  @moduledoc false
+  use ExUnit.Case, async: true
+
+  require Ash.Query
+
+  describe "atomic validation" do
+    test "valid value" do
+      {:atomic, expr} = Ash.Type.Integer.cast_atomic(1, min: 0, max: 2)
+
+      assert Ash.Expr.eval!(expr) == 1
+    end
+
+    test "invalid values" do
+      assert_raise Ash.Error.Changes.InvalidChanges, ~r/must be greater than or equal to 2/, fn ->
+        {:atomic, expr} = Ash.Type.Integer.cast_atomic(1, min: 2, max: 4)
+        Ash.Expr.eval!(expr)
+      end
+
+      assert_raise Ash.Error.Changes.InvalidChanges, ~r/must be less than or equal to 4/, fn ->
+        {:atomic, expr} = Ash.Type.Integer.cast_atomic(5, min: 2, max: 4)
+        Ash.Expr.eval!(expr)
+      end
+    end
+  end
+
+  describe "validation" do
+    test "valid value" do
+      assert {:ok, 1} = Ash.Type.Integer.cast_input(1, min: 0, max: 2)
+    end
+
+    test "invalid values" do
+      assert {:error, [[message: "must be more than or equal to %{min}", min: 2]]} =
+               Ash.Type.Integer.apply_constraints(1, min: 2, max: 4)
+
+      assert {:error, [[message: "must be less than or equal to %{max}", max: 4]]} =
+               Ash.Type.Integer.apply_constraints(5, min: 2, max: 4)
+    end
+  end
+end