Write specs for all lib/**/*.rb

spec/space2dot/cli_spec.rb

@@ -0,0 +1,19 @@
+require 'spec_helper'
+
+describe Space2dot::Cli do
+  describe '#start' do
+    subject { -> { described_class.new(argv).start } }
+
+    context 'when arguments is empty' do
+      let(:argv) { %w(this is class) }
+
+      it { is_expected.to output(".this.is.class\n").to_stdout }
+    end
+
+    context 'when arguments is empty' do
+      let(:argv) { Array.new }
+
+      it { is_expected.not_to output(".this.is.class\n").to_stdout }
+    end
+  end
+end

spec/space2dot/dot_spec.rb

@@ -0,0 +1,22 @@
+# coding: utf-8
+
+require 'spec_helper'
+
+describe Space2dot::Dot do
+  let(:sentence) { %w(this is class) }
+  let(:expected) { '.this.is.class' }
+
+  subject { described_class.instance.convert(sentence) }
+
+  context 'when an argument is an array' do
+    let(:sentence) { ['this is class'] }
+
+    it { is_expected.to eq expected }
+  end
+
+  context 'when an argument is multiple arrayies' do
+    let(:sentence) { %w(this is class) }
+
+    it { is_expected.to eq expected }
+  end
+end

spec/space2dot/usage_spec.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Space2dot::Usage do
+  subject { described_class.instance.text }
+
+  it { is_expected.to be_a String }
+  it { is_expected.not_to be_empty }
+end

spec/spec_helper.rb

@@ -7,10 +7,10 @@
 require 'space2dot'
 require 'simplecov'
 
-SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[
+SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter.new([
   SimpleCov::Formatter::HTMLFormatter,
   Coveralls::SimpleCov::Formatter
-]
+])
 
 SimpleCov.start do
   add_filter '/vendor/'