Update test to be future proof with similarity

examples/a_minimal/output2.txt

@@ -1,4 +1,4 @@
-Runfile engine v0.6.0
+Runfile engine v0.x.x
 
 Tip: Type 'run make' or 'run make name' to create a runfile.
 For global access, place named.runfiles in ~/runfile/ or in /etc/runfile/.

features/k_run_global.feature

@@ -6,5 +6,5 @@ Feature: Run Global (Bang)
 Scenario: Show proper usage
   Given I am in the "examples/a_minimal" folder
    When I run "run!"
-   Then the output should be like "output2.txt"
+   Then the output should resemble "output2.txt"
 

features/step_definitions/clicumber.rb

@@ -10,10 +10,10 @@
   $original_dir = nil
 end
 
-# Given...dir
+## Given...dir
 
 Given(/^I am in the "([^"]+)" (?:folder|dir|directory)$/) do |dir|
-  $original_dir = Dir.pwd
+  $original_dir = Dir.pwd unless $original_dir
   Dir.chdir dir
 end
 
@@ -33,7 +33,12 @@
   end
 end
 
-# Given...file
+Given(/^the (?:folder|dir|directory) "([^"]*)" is like "([^"]*)"$/) do |target, source|
+  FileUtils.cp_r source, target
+end
+
+
+## Given...file
 
 Given(/^the file "([^"]*)" (does not )?exists?$/) do |file, negate|
   if negate
@@ -51,7 +56,7 @@
   FileUtils.cp source, target
 end
 
-# When...run
+## When...run
 
 When(/^I run: (.+)$/) do |command|
   @stdout, @stderr, @status = Open3.capture3 command
@@ -61,7 +66,14 @@
   @stdout, @stderr, @status = Open3.capture3 command
 end
 
-# Then...output
+## When...dir
+
+When(/^I go into the "([^"]*)" (?:folder|dir|directory)$/) do |dir|
+  $original_dir = Dir.pwd unless $original_dir
+  Dir.chdir dir
+end
+
+## Then...output
 
 Then(/^the (error )?output should (not )?be like "([^"]*)"$/) do |stderr, negate, file|
   stream = stderr ? @stderr : @stdout
@@ -72,6 +84,17 @@
   end
 end
 
+Then(/^the (error )?output should (not )?resemble "([^"]*)"(?: by "(\d{1,2})%?")?$/) do |stderr, negate, file, percentage|
+  stream = stderr ? @stderr : @stdout
+  similarity = stream.similar File.read(file)
+  percentage ||= 90
+  if negate
+    expect(similarity).to_not be >= percentage.to_f
+  else
+    expect(similarity).to be >= percentage.to_f
+  end
+end
+
 Then(/^the (error )?output should (not )?match "([^"]*)"$/) do |stderr, negate, content|
   stream = stderr ? @stderr : @stdout
   if negate
@@ -99,7 +122,7 @@
   end
 end
 
-# Then...file
+## Then...file
 
 Then(/^the file "([^"]*)" should (not )?exist$/) do |file, negate|
   if negate
@@ -133,7 +156,7 @@
   end
 end
 
-# Then...dir
+## Then...dir
 
 Then(/^the (?:folder|dir|directory) "([^"]*)" should (not )?exist$/) do |dir, negate|
   if negate
@@ -151,7 +174,7 @@
   end
 end
 
-# Then...exit code
+## Then...exit code
 
 Then(/^the (?:status|exit) code should (not )?be "([^"]*)"$/) do |negate, code|
   if negate

features/support/env.rb

@@ -1 +1,2 @@
 require 'open3'
+require 'similar_text'

runfile.gemspec

@@ -23,4 +23,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'cucumber', '~> 2.3'
   s.add_development_dependency 'rspec-expectations', '~> 3.4'
   s.add_development_dependency 'rdoc', '~> 4.2'
+  s.add_development_dependency 'similar_text', '~> 0.0.4'
 end