Add Missing Methods for Execution details

lib/novu/execution_details.ex

@@ -0,0 +1,17 @@
+defmodule Novu.ExecutionDetails do
+  @moduledoc """
+  Provide access to the Novu Execution Details API
+  """
+
+  alias Novu.Http
+
+  @doc """
+  Retrieves execution details
+
+  [API Documentation](https://docs.novu.co/api-reference/execution-details/get-execution-details/)
+  """
+  @spec get-execution-details :: Http.response()
+  def get_execution_details do
+    Http.get("/v1/execution-details")
+  end
+end

test/novu/execution_details_test.exs

@@ -0,0 +1,37 @@
+defmodule Novu.ExecutionDetailsTest do
+  use ExUnit.Case
+
+  import Novu.ApiTestHelpers
+
+  alias Novu.ExecutionDetails
+
+  @test_api_key "test-api-key"
+
+  setup do
+    bypass = Bypass.open()
+
+    current_domain = Application.get_env(:novu, :domain)
+
+    Application.put_env(:novu, :domain, "http://localhost:#{bypass.port}")
+    Application.put_env(:novu, :api_key, @test_api_key)
+
+    on_exit(fn ->
+      Application.put_env(:novu, :domain, current_domain)
+    end)
+
+    {:ok, bypass: bypass}
+  end
+
+  describe "get-execution-details/0" do
+    test "creates a GET to /v1/execution-details", %{bypass: bypass} do
+      notification_group_name = "Test"
+
+      Bypass.expect(bypass, "GET", "/v1/execution-details", fn conn ->
+        assert %{"name" => ^get_execution_details} = read_json_body(conn)
+        novu_response(conn, 201, %{data: []})
+      end)
+
+      assert {:ok, _body} = ExecutionDetails.get_execution_details()
+    end
+  end
+end