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path: root/spec/unit/provider/package/pip_spec.rb
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#!/usr/bin/env ruby

require 'spec_helper'

provider_class = Puppet::Type.type(:package).provider(:pip)

describe provider_class do

  before do
    @resource = Puppet::Resource.new(:package, "sdsfdssdhdfyjymdgfcjdfjxdrssf")
    @provider = provider_class.new(@resource)
  end

  describe "parse" do

    it "should return a hash on valid input" do
      provider_class.parse("Django==1.2.5").should == {
        :ensure   => "1.2.5",
        :name     => "Django",
        :provider => :pip,
      }
    end

    it "should return nil on invalid input" do
      provider_class.parse("foo").should == nil
    end

  end

  describe "instances" do

    it "should return an array when pip is present" do
      provider_class.expects(:which).with('pip').returns("/fake/bin/pip")
      p = stub("process")
      p.expects(:collect).yields("Django==1.2.5")
      provider_class.expects(:execpipe).with("/fake/bin/pip freeze").yields(p)
      provider_class.instances
    end

    it "should return an empty array when pip is missing" do
      provider_class.expects(:which).with('pip').returns nil
      provider_class.instances.should == []
    end

  end

  describe "query" do

    before do
      @resource[:name] = "Django"
    end

    it "should return a hash when pip and the package are present" do
      provider_class.expects(:instances).returns [provider_class.new({
        :ensure   => "1.2.5",
        :name     => "Django",
        :provider => :pip,
      })]

      @provider.query.should == {
        :ensure   => "1.2.5",
        :name     => "Django",
        :provider => :pip,
      }
    end

    it "should return nil when the package is missing" do
      provider_class.expects(:instances).returns []
      @provider.query.should == nil
    end

  end

  describe "latest" do

    it "should find a version number for Django" do
      @resource[:name] = "Django"
      @provider.latest.should_not == nil
    end

    it "should not find a version number for sdsfdssdhdfyjymdgfcjdfjxdrssf" do
      @resource[:name] = "sdsfdssdhdfyjymdgfcjdfjxdrssf"
      @provider.latest.should == nil
    end

  end

  describe "install" do

    before do
      @resource[:name] = "sdsfdssdhdfyjymdgfcjdfjxdrssf"
      @url = "git+https://example.com/sdsfdssdhdfyjymdgfcjdfjxdrssf.git"
    end

    it "should install" do
      @resource[:ensure] = :installed
      @resource[:source] = nil
      @provider.expects(:lazy_pip).
        with("install", '-q', "sdsfdssdhdfyjymdgfcjdfjxdrssf")
      @provider.install
    end

    it "should install from SCM" do
      @resource[:ensure] = :installed
      @resource[:source] = @url
      @provider.expects(:lazy_pip).
        with("install", '-q', '-e', "#{@url}#egg=sdsfdssdhdfyjymdgfcjdfjxdrssf")
      @provider.install
    end

    it "should install a particular SCM revision" do
      @resource[:ensure] = "0123456"
      @resource[:source] = @url
      @provider.expects(:lazy_pip).
        with("install", "-q", "-e", "#{@url}@0123456#egg=sdsfdssdhdfyjymdgfcjdfjxdrssf")
      @provider.install
    end

    it "should install a particular version" do
      @resource[:ensure] = "0.0.0"
      @resource[:source] = nil
      @provider.expects(:lazy_pip).with("install", "-q", "sdsfdssdhdfyjymdgfcjdfjxdrssf==0.0.0")
      @provider.install
    end

    it "should upgrade" do
      @resource[:ensure] = :latest
      @resource[:source] = nil
      @provider.expects(:lazy_pip).
        with("install", "-q", "--upgrade", "sdsfdssdhdfyjymdgfcjdfjxdrssf")
      @provider.install
    end

  end

  describe "uninstall" do

    it "should uninstall" do
      @resource[:name] = "sdsfdssdhdfyjymdgfcjdfjxdrssf"
      @provider.expects(:lazy_pip).
        with('uninstall', '-y', '-q', 'sdsfdssdhdfyjymdgfcjdfjxdrssf')
      @provider.uninstall
    end

  end

  describe "update" do

    it "should just call install" do
      @provider.expects(:install).returns(nil)
      @provider.update
    end

  end

  describe "lazy_pip" do

    it "should succeed if pip is present" do
      @provider.stubs(:pip).returns(nil)
      @provider.method(:lazy_pip).call "freeze"
    end

    it "should retry if pip has not yet been found" do
      @provider.expects(:pip).twice.with('freeze').raises(NoMethodError).then.returns(nil)
      @provider.expects(:which).with('pip').returns("/fake/bin/pip")
      @provider.method(:lazy_pip).call "freeze"
    end

    it "should fail if pip is missing" do
      @provider.expects(:pip).with('freeze').raises(NoMethodError)
      @provider.expects(:which).with('pip').returns(nil)
      expect { @provider.method(:lazy_pip).call("freeze") }.to raise_error(NoMethodError)
    end

  end

end