test: dynamically find available ports

Author: bethesque

spec/integration/cli_monkeypatch_spec.rb

@@ -1,13 +1,15 @@
 require 'fileutils'
 require 'support/integration_spec_support'
+require 'find_a_port'
 
 describe "The pact-mock-service command line interface with a monkeypatch", mri_only: true do
 
   include Pact::IntegrationTestSupport
 
   before :all do
     clear_dirs
-    @pid = start_server 3234, "--monkeypatch #{Dir.pwd}/spec/support/monkeypatch.rb"
+    @port = FindAPort.available_port
+    @pid = start_server @port, "--monkeypatch #{Dir.pwd}/spec/support/monkeypatch.rb"
   end
 
   let(:interaction) do
@@ -25,11 +27,11 @@
   end
 
   it "starts up and responds with mocked responses" do
-    response = setup_interaction 3234, interaction
+    response = setup_interaction @port, interaction
 
-    `curl -H 'custom_header: bar' http://localhost:3234/greeting`
+    `curl -H 'custom_header: bar' http://localhost:#{@port}/greeting`
 
-    response = verify 3234
+    response = verify @port
     puts response.body unless response.status == 200
     expect(response.status).to eq 200
   end

spec/integration/cli_with_auto_pact_write_spec.rb

@@ -1,22 +1,24 @@
 require 'fileutils'
 require 'support/integration_spec_support'
+require 'find_a_port'
 
 describe "The pact-mock-service command line interface", mri_only: true do
 
   include Pact::IntegrationTestSupport
 
   before :all do
     clear_dirs
-    @pid = start_server 1235, '--consumer Consumer --provider Provider'
+    @port = FindAPort.available_port
+    @pid = start_server @port, '--consumer Consumer --provider Provider'
   end
 
   context "when the consumer and provider names are provided" do
     it "writes the pact to the specified directory on shutdown" do
       expect(File.exist?('tmp/pacts/consumer-provider.json')).to be false
-      response = setup_interaction 1235
+      response = setup_interaction @port
       expect(response.status).to eq 200
 
-      response = invoke_expected_request 1235
+      response = invoke_expected_request @port
       expect(response.status).to eq 200
 
       Process.kill "INT", @pid

spec/integration/stub_cli_with_multiple_pacts_spec.rb

@@ -1,24 +1,24 @@
 require 'support/integration_spec_support'
+require 'find_a_port'
 
 describe "The pact-stub-service command line interface with multiple pacts", mri_only: true do
 
   include Pact::IntegrationTestSupport
 
-  PORT = 5556
-
   before :all do
     clear_dirs
-    @pid = start_stub_server PORT, "spec/support/pact-for-stub-1.json spec/support/pact-for-stub-2.json"
+    @port = FindAPort.available_port
+    @pid = start_stub_server @port, "spec/support/pact-for-stub-1.json spec/support/pact-for-stub-2.json"
   end
 
   it "includes the interactions from the first pact file" do
-    response = Faraday.get "http://localhost:#{PORT}/path1"
+    response = Faraday.get "http://localhost:#{@port}/path1"
     puts response.body if response.status != 200
     expect(response.status).to eq 200
   end
 
   it "includes the interactions from the second pact file" do
-    response = Faraday.get "http://localhost:#{PORT}/path2"
+    response = Faraday.get "http://localhost:#{@port}/path2"
     puts response.body if response.status != 200
     expect(response.status).to eq 200
   end