spec: add a test for making a new sprue

lib/squib/commands/make_sprue.rb

@@ -15,9 +15,9 @@ module Squib
     class MakeSprue
       # :nodoc:
       # @api private
-      def process(args)
+      def process(args, input = $stdin, output = $stdout)
         # Get definitions from the user
-        @option = prompt
+        @option = prompt(input, output)
 
         @printable_edge_right = (
           @option.sheet_width - @option.sheet_margin.right)
@@ -38,9 +38,9 @@ module Squib
       private
 
       # Accept user input that defines the template.
-      def prompt
+      def prompt(input, output)
         option = TemplateOption.new
-        cli = HighLine.new
+        cli = HighLine.new(input, output)
 
         option.unit = cli.choose do |menu|
           menu.prompt = 'What measure unit should we use? '

spec/commands/make_sprue_spec.rb

@@ -0,0 +1,38 @@
+require 'highline'
+require 'spec_helper'
+require 'squib'
+
+describe Squib::Commands::MakeSprue do
+
+  describe '#process' do
+    before(:each) do
+      @in = StringIO.new
+      @out = StringIO.new
+      @oldpwd = Dir.pwd
+      Dir.chdir(output_dir)
+    end
+
+    after(:each) do
+      Dir.chdir @oldpwd
+    end
+
+    it 'creates a custom sheet based on inputs' do
+      @in <<
+        "1\n" <<     # Units inches
+        "4\n" <<     # Paper size A4 landscape
+        "0.135\n" << # Sheet margins
+        "3\n" <<     # Center align cards
+        "2.2\n" <<   # Card width
+        "3.5\n" <<   # Card height
+        "0\n" <<     # Gap
+        "1\n" <<     # Layout cards by row
+        "1\n" <<     # Generate crop lines
+        "foo.yml\n"  # Output to foo.yml
+      @in.rewind
+      subject.process({}, @in, @out)
+      expect(@out.string).to match(/What measure/)
+
+    end
+  end
+
+end