hackersleepyhead
render_submit() event of LiveViewComponent is not triggered during the test case, it always tries to look for the event in LiveView (parent) - but the actual event is defined in LiveComponent(child)
Live View
defmodule UserWeb.Users.Index do
use Phoenix.LiveView
alias UserWeb.UserView
@default_state %{
action?: nil,
user_id: nil,
users: [],
info_flash: nil
}
def render(assign) do
UserView.render("index.html", assign)
end
def mount(_params, _session, socket) do
users = get_users_list()
{:ok, assign(socket, %{@default_state | users: users})}
end
def handle_event("new", _params, socket) do
{:noreply,
live_redirect(socket,
to: UserWeb.Router.Helpers.users_new_path(socket, __MODULE__),
replace: false
)}
end
def handle_event("edit", %{"user-id" => user_id}, socket) do
new_socket =
socket
|> assign(:user_id, user_id)
{:noreply,
live_redirect(new_socket,
to:
UserWeb.Router.Helpers.users_edit_path(
new_socket,
__MODULE__,
user_id
),
replace: false
)}
end
def handle_params(_params, _uri, "new", socket) do
{:noreply, assign(socket, :action?, "new")}
end
def handle_params(_params, _uri, "edit", socket) do
{:noreply, assign(socket, :action?, "edit")}
end
end
index.html.leex
<div class="card">
<%= if @action? == "new" do %>
<%= live_component(@socket, UserWeb.Users.CreateComponent, id: :new) %>
<% end %>
<%= if @action? == "edit" do %>
<%= live_component(@socket, UserWeb.Users.EditComponent, id: :edit, user_id: @user_id) %>
<% end %>
<%= unless @action? do %>
<div class="card-header">
<strong>Users</strong>
<a class="btn btn-sm btn-success ml-3 pull-right" phx-click="new">
<i class="fa fa-plus mr-1"></i> Create
</a>
</div>
<div class="card-body">
<div class="row">
<%= if @users == [] do %>
<div class="col-lg-12">
<h5 class="text-center">No Records found for Users.</h5>
</div>
<% else %>
<div class="col-lg-12">
<table class="table table-responsive-md table-striped">
<thead>
<th>Name</th>
<th>E-mail</th>
</thead>
<tbody>
<%= for user <- @users do %>
<tr>
<td><%= user.name %></td>
<td><%= user.email %></td>
<td>
<button phx-click="edit" phx-value-user-id="<%= user.id %>" class="btn btn-sm btn-circle btn-info"><i class="fa fa-pencil mr-1"></i></button>
</td>
</tr>
<% end %>
</tbody>
</table>
</div>
<% end %>
</div>
</div>
<% end %>
</div>
create_component.ex
defmodule UserWeb.Users.CreateComponent do
use Phoenix.LiveComponent
alias UserWeb.UserView
def render(assigns) do
UserView.render("new.html", assigns)
end
def mount(socket) do
{:ok, assign(socket, changeset: %User{})}
end
def handle_event("insert", %{"user" => params}, socket) do
case add_user(params) do
{:ok, %User{}} ->
send(self(), :record_created)
{:noreply, socket}
{:error, _} ->
send(self(), :record_exists)
{:noreply, assign(socket, :changeset, %User{})}
end
end
def add_user(params) do
"code"
end
end
new.html.leex
<div class="card-header">
<strong>Create New User</strong>
</div>
<div class="card-body">
<div class="row">
<div class="col-lg-12">
<div id="<%= @id %>">
<%= f = form_for @changeset, "#", [phx_submit: :insert, "phx-target": "##{@id}"] %>
<div class="form-group">
<%= label f, :Name %>
<%= text_input f, :name, class: "form-control" %>
<%= error_tag f, :name %>
</div>
<div class="form-group">
<%= label f, :Email %>
<%= text_input f, :email, class: "form-control" %>
<%= error_tag f, :email %>
</div>
<div class="form-actions">
<%= submit class: "btn btn-primary" do %>
<i class="fa fa-save"></i> Create
<% end %>
<a phx-click="cancel" class="btn btn-danger">
<i class="fa fa-ban mr-1"></i> Cancel
</a>
</div>
</form>
</div>
</div>
</div>
</div>
test_live.ex
defmodule UserWeb.Users..IndexLiveTest do
use PaymentsFlaskWeb.ConnCase
import Phoenix.LiveViewTest
setup do
users = get_users()
%{users: users}
end
test "disconnected and connected mount", %{conn: conn, users: users} do
conn = get(conn, "/web-app/users")
html_response = html_response(conn, 200)
assert html_response =~ "Users Lisitng"
assert html_response =~ users.name)
assert {:ok, _view, _html} = live(conn)
end
test "open user registration form", %{conn: conn} do
assert {:ok, view, html} = live(conn, "/web-app/users")
assert html =~ "Users Lisitng"
assert render_click(view, :new) =~ "new"
end
test "render user registration form", %{conn: conn} do
new_user = %{name: "User 001", email: "some@email.com")
assert {:ok, view, html} = live(conn, "/web-app/users/new")
assert html =~ "Create new user"
render_submit(
[view, :new],
:insert,
%{"user" => new_user}
)
end
end
Below is the error
** (EXIT from pid<0.1046.0>) an exception was raised:
** (ArgumentError) no component with ID “new” found in view
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shankardevy
As seen in the source code: https://github.com/phoenixframework/phoenix_live_view/btelob/v0.11.1/lib/phoenix_live_view/test/live_view_test.ex#L510
Events are hardcoded to be sent to the LiveView module and makes no use of
phx-target.Currently, this looks like a limitation of LiveView testing that it cannot test events in the components but only in the parent view.
Most Liked
shankardevy
In the latest version of LiveView (0.12.0), you could test a component by using
element/2Last Post!
hackersleepyhead
Hello @shankardevy,
I found the issue, it was with the DB connection.
Anyways thanks for the suggestion. render_submit also worked.