scratch_spec.rb in from-scratch-0.6.0

- old
+ new
@@ -1,11 +1,68 @@
 require 'spec_helper'
 
-describe From::Scratch do
-  it 'has a version number' do
-    expect(From::Scratch::VERSION).not_to be nil
+describe FromScratch do
+  let(:instance) { described_class.new }
+  let(:app_name) { 'my_app' }
+  let(:host)     { 'host.example.com' }
+
+  describe '::new' do
+    subject { instance }
+
+    its('options.to_h') { are_expected.to eq(described_class::DEFAULTS) }
   end
 
-  it 'does something useful' do
-    expect(false).to eq(true)
+  describe '#get_host_and_app_name' do
+    before do
+      stub_const 'ARGV', argv
+    end
+
+    subject { instance.options }
+
+    context 'with app_name and host' do
+      before { instance.get_host_and_app_name }
+      let(:argv) { [app_name, host] }
+
+      its(:app_name) { is_expected.to eq(app_name) }
+      its(:host) { is_expected.to eq(host) }
+    end
+
+    context 'without one of app_name or host' do
+      let(:argv) { [app_name] }
+
+      it 'should raise' do
+        expect do
+          instance.get_host_and_app_name
+        end.to raise_error(ArgumentError)
+      end
+
+      context 'and with --option' do
+        let(:argv) { [app_name, '--option'] }
+
+        it 'should raise' do
+          expect do
+            instance.get_host_and_app_name
+          end.to raise_error(ArgumentError)
+        end
+      end
+    end
+  end
+
+  describe '#parse_options' do
+    before do
+      stub_const 'ARGV', argv
+      instance.parse_options
+    end
+
+    subject { instance.options }
+
+    context 'with --rbenv' do
+      let(:argv) { [app_name, host, '--rbenv'] }
+
+      its(:ruby_installer) { is_expected.to eq('rbenv') }
+    end
+  end
+
+  it 'has a version number' do
+    expect(FromScratch::VERSION).not_to be nil
   end
 end