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require 'spec_helper'
describe "Subscriber Event Source" do
let(:config) do
{
:subscriber_mode => 'eventsource',
:header_template => nil,
:message_template => nil,
:footer_template => nil,
:ping_message_interval => nil
}
end
it "should use content type as 'event stream'" do
channel = 'ch_test_content_type_should_be_event_stream'
nginx_run_server(config.merge(:header_template => "header")) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/' + channel.to_s)
source.open do
EventMachine.stop
end
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
expect(sub.response_header["CONTENT_TYPE"]).to eql("text/event-stream; charset=utf-8")
source.start
end
end
end
end
it "should split header lines and prefix them by a colon" do
channel = 'ch_test_each_line_on_header_template_should_be_prefixed_by_a_colon'
nginx_run_server(config.merge(:header_template => "header line 1\nheader line 2\rheader line 3\r\nheader line 4")) do |conf|
EventMachine.run do
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
expect(chunk).to eql(": header line 1\n: header line 2\n: header line 3\n: header line 4\n")
EventMachine.stop
end
end
end
end
it "should treat escaped new lines on header as single lines" do
channel = 'ch_test_escaped_new_lines_on_header_template_should_be_treated_as_single_line'
nginx_run_server(config.merge(:header_template => "header line 1\\\\nheader line 2")) do |conf|
EventMachine.run do
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
expect(chunk).to eql(": header line 1\\nheader line 2\n")
EventMachine.stop
end
end
end
end
it "should split footer lines and prefix them by a colon" do
channel = 'ch_test_each_line_on_footer_template_should_be_prefixed_by_a_colon'
response = ''
nginx_run_server(config.merge(:subscriber_connection_ttl => '1s', :footer_template => "footer line 1\nfooter line 2\rfooter line 3\r\nfooter line 4")) do |conf|
EventMachine.run do
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
end
sub.callback do
expect(response).to eql(": \n: footer line 1\n: footer line 2\n: footer line 3\n: footer line 4\n")
EventMachine.stop
end
end
end
end
it "should treat escaped new lines on footer as single lines" do
channel = 'ch_test_escaped_new_lines_on_footer_template_should_be_treated_as_single_line'
response = ''
nginx_run_server(config.merge(:subscriber_connection_ttl => '1s', :footer_template => "footer line 1\\\\nfooter line 2")) do |conf|
EventMachine.run do
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
end
sub.callback do
expect(response).to eql(": \n: footer line 1\\nfooter line 2\n")
EventMachine.stop
end
end
end
end
it "should use default message template without event id" do
body = 'test message'
channel = 'ch_test_default_message_template_without_event_id'
response = ''
nginx_run_server(config) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.message do |message|
expect(message).to eql(body)
publish_message_inline(channel, headers, body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("data: ")
expect(response).to eql(": \ndata: #{body}\n\n")
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers, body)
end
end
end
it "should use default message template without event type" do
body = 'test message'
channel = 'ch_test_default_message_template_without_event_type'
response = ''
nginx_run_server(config) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.message do |message|
expect(message).to eql(body)
publish_message_inline(channel, headers, body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("data: ")
expect(response).to eql(": \ndata: #{body}\n\n")
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers, body)
end
end
end
it "should use default message template with event id" do
event_id = 'event_id_with_generic_text_01'
body = 'test message'
channel = 'ch_test_default_message_template_with_event_id'
response = ''
nginx_run_server(config) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.message do |message|
expect(message).to eql(body)
expect(source.last_event_id).to eql(event_id)
publish_message_inline(channel, headers.merge('Event-Id' => event_id), body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("data: ")
expect(response).to eql(": \nid: #{event_id}\ndata: #{body}\n\n")
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers.merge('Event-Id' => event_id), body)
end
end
end
it "should use default message template with event type" do
event_type = 'event_type_with_generic_text_01'
body = 'test message'
channel = 'ch_test_default_message_template_with_event_type'
response = ''
nginx_run_server(config) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.on event_type do |message|
expect(message).to eql(body)
publish_message_inline(channel, headers.merge('Event-type' => event_type), body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("data: ")
expect(response).to eql(": \nevent: #{event_type}\ndata: #{body}\n\n")
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers.merge('Event-type' => event_type), body)
end
end
end
it "should use custom message template without event id" do
body = 'test message'
channel = 'ch_test_custom_message_template_without_event_id'
response = ''
nginx_run_server(config.merge(:message_template => '{\"id\":\"~id~\", \"message\":\"~text~\"}')) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.message do |message|
expect(message).to eql(%({"id":"1", "message":"#{body}"}))
publish_message_inline(channel, headers, body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("data: ")
expect(response).to eql(%(: \ndata: {"id":"1", "message":"#{body}"}\n\n))
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers, body)
end
end
end
it "should use custom message template without event type" do
body = 'test message'
channel = 'ch_test_custom_message_template_without_event_type'
response = ''
nginx_run_server(config.merge(:message_template => '{\"id\":\"~id~\", \"message\":\"~text~\"}')) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.message do |message|
expect(message).to eql(%({"id":"1", "message":"#{body}"}))
publish_message_inline(channel, headers, body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("data: ")
expect(response).to eql(%(: \ndata: {"id":"1", "message":"#{body}"}\n\n))
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers, body)
end
end
end
it "should use custom message template with event id" do
event_id = 'event_id_with_generic_text_01'
body = 'test message'
channel = 'ch_test_custom_message_template_with_event_id'
response = ''
nginx_run_server(config.merge(:message_template => '{\"id\":\"~id~\", \"message\":\"~text~\"}')) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.message do |message|
expect(message).to eql(%({"id":"1", "message":"#{body}"}))
expect(source.last_event_id).to eql(event_id)
publish_message_inline(channel, headers.merge('Event-Id' => event_id), body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("data: ")
expect(response).to eql(%(: \nid: #{event_id}\ndata: {"id":"1", "message":"#{body}"}\n\n))
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers.merge('Event-Id' => event_id), body)
end
end
end
it "should use custom message template with event type" do
event_type = 'event_type_with_generic_text_01'
body = 'test message'
channel = 'ch_test_custom_message_template_with_event_type'
response = ''
nginx_run_server(config.merge(:message_template => '{\"id\":\"~id~\", \"message\":\"~text~\"}')) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.on event_type do |message|
expect(message).to eql(%({"id":"1", "message":"#{body}"}))
publish_message_inline(channel, headers.merge('Event-type' => event_type), body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("data: ")
expect(response).to eql(%(: \nevent: #{event_type}\ndata: {"id":"1", "message":"#{body}"}\n\n))
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers.merge('Event-type' => event_type), body)
end
end
end
it "should apply the message template to each line on posted message" do
body = "line 1\nline 2\rline 3\r\nline 4"
channel = 'ch_test_each_line_on_posted_message_should_be_applied_to_template'
nginx_run_server(config) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.message do |message|
expect(message).to eql("line 1\nline 2\nline 3\nline 4")
publish_message_inline(channel, headers, body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
if chunk.include?("line 4")
expect(chunk).to eql("data: line 1\ndata: line 2\ndata: line 3\ndata: line 4\n\n")
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers, body)
end
end
end
it "should treat escaped new lines on posted message as single lines" do
body = "line 1\\nline 2"
channel = 'ch_test_escaped_new_lines_on_posted_message_should_be_treated_as_single_line'
nginx_run_server(config) do |conf|
EventMachine.run do
source = EventMachine::EventSource.new(nginx_address + '/sub/_' + channel.to_s)
source.message do |message|
expect(message).to eql(body)
publish_message_inline(channel, headers, body)
end
source.start
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
if chunk.include?("line 2")
expect(chunk).to eql("data: line 1\\nline 2\n\n")
EventMachine.stop
end
end
publish_message_inline("_#{channel}", headers, body)
end
end
end
it "should receive ping message" do
channel = 'ch_test_ping_message_on_event_source'
nginx_run_server(config.merge(:ping_message_interval => '1s', :message_template => '{\"id\":\"~id~\", \"message\":\"~text~\"}')) do |conf|
EventMachine.run do
sub = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get
sub.stream do |chunk|
if chunk.include?("-1")
expect(chunk).to eql(": -1\n")
EventMachine.stop
end
end
end
end
end
it "should not reaplly formatter to header, message or footer template when inside an if" do
channel = 'ch_test_not_reaplly_formatter_on_header_message_footer_template'
body = 'test message'
response = ''
extra_location = %(
location ~ /ev/(.*) {
push_stream_subscriber "eventsource";
push_stream_channels_path "$1";
if ($arg_tests = "on") {
push_stream_channels_path "test_$1";
}
}
)
nginx_run_server(config.merge(:extra_location => extra_location, :header_template => "header", :message_template => "msg ~text~", :footer_template => "footer", :subscriber_connection_ttl => '1s')) do |conf|
EventMachine.run do
sub = EventMachine::HttpRequest.new(nginx_address + '/ev/' + channel.to_s).get
sub.stream do |chunk|
response += chunk
if response.include?("footer")
expect(response).to eql(": header\ndata: msg #{body}\n\n: footer\n")
response = ''
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/ev/' + channel.to_s + '?tests=on').get
sub_1.stream do |chunk_1|
response += chunk_1
if response.include?("footer")
expect(response).to eql(": header\ndata: msg #{body}\n\n: footer\n")
EventMachine.stop
end
end
publish_message_inline("test_" + channel, headers, body)
end
end
publish_message_inline(channel, headers, body)
end
end
end
end
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