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Rails测试“ ActionController :: UnknownFormat:缺少此请求格式和变体的模板”

[英]Rails Test “ActionController::UnknownFormat: is missing a template for this request format and variant”

我正在为一个名为“ Canary”的Twitter克隆应用程序创建一个测试套件,并且很难编写针对chirps#reply和chirps#rechirps的集成测试

线性调频控制器

def reply
    @chirp = current_user.chirps.new
    @parent = Chirp.find_by(id: params[:parent_id])
    @chirp.parent_id = params[:parent_id]
    respond_to do |format|
        format.js
        format.html
    end
end

def rechirp
    @chirp = current_user.chirps.new
    @reference = Chirp.find_by(id: params[:reference_id])
    @chirp.reference_id = params[:reference_id]
    respond_to do |format|
        format.js
        format.html
    end 
end

rp视图

<%= link_to reply_chirp_path(current_user, parent_id: chirp.id), remote: true, data: { target: '#modal_container', toggle: 'modal' } do %>
    <%= icon('far', 'comment') %> <%= chirp.children.size if chirp.children.size > 0 %>
<% end %>

<%= link_to rechirp_chirp_path(current_user, reference_id: chirp.id), remote: true, data: { target: '#modal_container', toggle: 'modal' } do %>
    <%= icon('fas', 'retweet') %> <%= count_rechirps(chirp) %>
<% end %>

Reply.js.erb

$("#modal_container").find(".modal-content").html("<%= j render 'chirps/modal_reply' %>");
$("#modal_container").modal('show', 'focus');

Rechirp.js.erb

$("#modal_container").find(".modal-content").html("<%= j render 'chirps/modal_rechirp' %>");
$("#modal_container").modal('show', 'focus');

线性调频接口测试

# Try to reply to chirp
assert_select 'a[href=?]', reply_chirp_path(@user, parent_id: @chirp.id)
assert_difference 'Chirp.count', 1 do
    get reply_chirp_path(@user, parent_id: @chirp)
    assert_select 'div#modal_container > div.modal-dialog > div.modal-content > div.modal-body'
    post chirps_path, params: { chirp: { content: content, parent_id: @chirp.id } }
    assert :success
end
assert_redirected_to root_url
follow_redirect!
# Try to rechirp chirp
assert_select 'a[href=?]', rechirp_chirp_path(@user, reference_id: @chirp.id)

当我运行chirp_interface_test.rb时,我总是遇到相同的错误:

错误:ChirpsInterfaceTest#test_chirp_interface:

ActionController :: UnknownFormat:ChirpsController#reply缺少此请求格式和变体的模板。

request.formats:[“ text / html”]

request.variant:[]

 test/integration/chirps_interface_test.rb:30:in `block (2 levels) in <class:ChirpsInterfaceTest>' test/integration/chirps_interface_test.rb:29:in `block in <class:ChirpsInterfaceTest>' 

我知道路由在应用程序中有效,因为我已成功通过答复提交并通过本地主机多次提交。 如何在Rails测试中测试这些动作是否正常工作?

错误:ChirpsInterfaceTest#test_chirp_interface:

ActionController :: UnknownFormat:ChirpsController#reply缺少此请求格式和变体的模板。

request.formats:[“ text / html”]

request.variant:[]

您的链接具有remote: true 这意味着请求是JS 要测试这样的链接,您应该像这样使用xhr: true

get reply_chirp_path(@user, parent_id: @chirp), xhr: true

由于您未指定此选项,因此该请求被视为HTML并因该异常而失败。

有关更多信息,请阅读测试XHR(AJAX)请求

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