Add new tests when patch error was provided

Author: corka149

test/jsonpatch/operation/add_test.exs

@@ -73,4 +73,11 @@ defmodule Jsonpatch.Operation.AddTest do
 
     assert %{"a" => [0, 1, 2, 3]} = Operation.apply_op(patch, target)
   end
+
+  test "Return error when patch error was provided to add operation" do
+    patch = %Add{path: "/a", value: false}
+    error = {:error, :invalid_index, "4"}
+
+    assert ^error = Operation.apply_op(patch, error)
+  end
 end

test/jsonpatch/operation/remove_test.exs

@@ -83,4 +83,11 @@ defmodule RemoveTest do
     remove_patch = %Remove{path: "/hobbies/1/description"}
     assert {:error, :invalid_index, "1"} = Jsonpatch.apply_patch(remove_patch, target)
   end
+
+  test "Return error when patch error was provided to remove operation" do
+    patch = %Remove{path: "/a"}
+    error = {:error, :invalid_index, "4"}
+
+    assert ^error = Operation.apply_op(patch, error)
+  end
 end

test/jsonpatch/operation/replace_test.exs

@@ -81,4 +81,11 @@ defmodule Jsonpatch.Operation.ReplaceTest do
 
     assert {:error, :invalid_index, "c"} = patched_target
   end
+
+  test "Return error when patch error was provided to replace operation" do
+    patch = %Replace{path: "/a", value: true}
+    error = {:error, :invalid_index, "4"}
+
+    assert ^error = Operation.apply_op(patch, error)
+  end
 end