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require 'rails_helper'
RSpec.describe "template rendering", type: :controller do
context "without render_views" do
context "with the standard renderers" do
controller do
def index
render template: 'foo', layout: false
end
end
it "renders the 'foo' template" do
get :index
expect(response).to render_template(:foo)
end
it "renders an empty string" do
get :index
expect(response.body).to eq("")
end
end
context "with a String path prepended to the view path" do
controller do
def index
prepend_view_path('app/views/some_templates')
render template: 'bar', layout: false
end
end
it "renders the 'bar' template" do
get :index
expect(response).to render_template(:bar)
end
end
context "with a custom renderer prepended to the view path" do
controller do
def index
prepend_view_path(MyResolver.new)
render template: 'baz', layout: false
end
end
it "renders the 'baz' template" do
get :index
expect(response).to render_template(:baz)
end
it "renders an empty string" do
get :index
expect(response.body).to eq("")
end
end
end
context "with render_views enabled" do
render_views
context "with the standard renderers" do
controller do
def index
render template: 'foo', layout: false
end
end
it "renders the 'foo' template" do
get :index
expect(response).to render_template(:foo)
end
it "renders the contents of the template" do
get :index
expect(response.body).to include("Static template named 'foo.html'")
end
end
context "with a String path prepended to the view path" do
controller do
def index
prepend_view_path('app/views/some_templates')
render template: 'bar', layout: false
end
end
it "renders the 'bar' template" do
get :index
expect(response).to render_template(:bar)
end
it "renders the contents of the template" do
get :index
expect(response.body).to include("Static template named 'bar.html'")
end
end
context "with a custom renderer prepended to the view path" do
controller do
def index
prepend_view_path(MyResolver.new)
render template: 'baz', layout: false
end
end
it "renders the 'baz' template" do
get :index
expect(response).to render_template(:baz)
end
it "renders the contents of the template" do
get :index
expect(response.body).to eq("Dynamic template with path '/baz'")
end
end
end
class MyResolver < ActionView::Resolver
private
def find_templates(name, prefix = nil, partial = false, _details = {}, _key = nil, _locals = [])
name.prepend("_") if partial
path = [prefix, name].join("/")
template = find_template(name, path)
[template]
end
def find_template(name, path)
ActionView::Template.new(
"",
name,
->(template, _source = nil) { %("Dynamic template with path '#{template.virtual_path}'") },
virtual_path: path,
format: :html,
locals: []
)
end
end
end
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