Convert Language::Python test to spec.
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Markus Reiter
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Library/Homebrew/test/language/python_spec.rb
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106
Library/Homebrew/test/language/python_spec.rb
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require "language/python"
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require "resource"
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describe Language::Python::Virtualenv::Virtualenv do
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subject { described_class.new(formula, dir, "python") }
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let(:dir) { @dir = Pathname.new(Dir.mktmpdir) }
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let(:resource) { double("resource", stage: true) }
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let(:formula_bin) { dir/"formula_bin" }
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let(:formula) { double("formula", resource: resource, bin: formula_bin) }
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after(:each) { dir.rmtree unless @dir.nil? }
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describe "#create" do
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it "creates a virtual environment" do
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expect(formula).to receive(:resource).with("homebrew-virtualenv").and_return(resource)
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subject.create
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end
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specify "virtual environment creation is idempotent" do
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expect(formula).to receive(:resource).with("homebrew-virtualenv").and_return(resource)
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subject.create
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FileUtils.mkdir_p dir/"bin"
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FileUtils.touch dir/"bin/python"
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subject.create
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FileUtils.rm dir/"bin/python"
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end
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end
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describe "#pip_install" do
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it "accepts a string" do
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expect(formula).to receive(:system)
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.with(dir/"bin/pip", "install", "-v", "--no-deps",
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"--no-binary", ":all:", "--ignore-installed", "foo")
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.and_return(true)
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subject.pip_install "foo"
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end
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it "accepts a multi-line strings" do
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expect(formula).to receive(:system)
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.with(dir/"bin/pip", "install", "-v", "--no-deps",
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"--no-binary", ":all:", "--ignore-installed", "foo", "bar")
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.and_return(true)
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subject.pip_install <<-EOS.undent
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foo
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bar
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EOS
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end
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it "accepts an array" do
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expect(formula).to receive(:system)
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.with(dir/"bin/pip", "install", "-v", "--no-deps",
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"--no-binary", ":all:", "--ignore-installed", "foo")
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.and_return(true)
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expect(formula).to receive(:system)
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.with(dir/"bin/pip", "install", "-v", "--no-deps",
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"--no-binary", ":all:", "--ignore-installed", "bar")
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.and_return(true)
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subject.pip_install ["foo", "bar"]
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end
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it "accepts a Resource" do
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res = Resource.new("test")
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expect(res).to receive(:stage).and_yield
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expect(formula).to receive(:system)
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.with(dir/"bin/pip", "install", "-v", "--no-deps",
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"--no-binary", ":all:", "--ignore-installed", Pathname.pwd)
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.and_return(true)
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subject.pip_install res
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end
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end
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describe "#pip_install_and_link" do
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let(:src_bin) { dir/"bin" }
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let(:dest_bin) { formula.bin }
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it "can link scripts" do
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src_bin.mkpath
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expect(src_bin/"kilroy").not_to exist
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expect(dest_bin/"kilroy").not_to exist
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FileUtils.touch src_bin/"irrelevant"
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bin_before = Dir.glob(src_bin/"*")
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FileUtils.touch src_bin/"kilroy"
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bin_after = Dir.glob(src_bin/"*")
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expect(subject).to receive(:pip_install).with("foo")
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expect(Dir).to receive(:[]).with(src_bin/"*").twice.and_return(bin_before, bin_after)
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subject.pip_install_and_link "foo"
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expect(src_bin/"kilroy").to exist
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expect(dest_bin/"kilroy").to exist
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expect(dest_bin/"kilroy").to be_a_symlink
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expect((src_bin/"kilroy").realpath).to eq((dest_bin/"kilroy").realpath)
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expect(dest_bin/"irrelevant").not_to exist
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end
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end
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end
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@ -1,96 +0,0 @@
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require "testing_env"
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require "language/python"
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require "resource"
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class LanguagePythonTests < Homebrew::TestCase
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def setup
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super
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@dir = Pathname.new(mktmpdir)
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resource = stub("resource", stage: true)
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formula_bin = @dir/"formula_bin"
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@formula = mock("formula") do
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stubs(:resource).returns(resource)
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stubs(:bin).returns(formula_bin)
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end
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@venv = Language::Python::Virtualenv::Virtualenv.new(@formula, @dir, "python")
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end
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def test_virtualenv_creation
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@formula.expects(:resource).with("homebrew-virtualenv").returns(
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mock("resource", stage: true),
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)
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@venv.create
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end
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# or at least doesn't crash the second time
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def test_virtualenv_creation_is_idempotent
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@formula.expects(:resource).with("homebrew-virtualenv").returns(
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mock("resource", stage: true),
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)
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@venv.create
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FileUtils.mkdir_p @dir/"bin"
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FileUtils.touch @dir/"bin/python"
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@venv.create
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FileUtils.rm @dir/"bin/python"
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end
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def test_pip_install_accepts_string
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@formula.expects(:system).returns(true).with do |*params|
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params.first == @dir/"bin/pip" && params.last == "foo"
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end
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@venv.pip_install "foo"
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end
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def test_pip_install_accepts_multiline_string
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@formula.expects(:system).returns(true).with do |*params|
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params.first == @dir/"bin/pip" && params[-2..-1] == ["foo", "bar"]
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end
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@venv.pip_install <<-EOS.undent
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foo
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bar
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EOS
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end
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def test_pip_install_accepts_array
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@formula.expects(:system).returns(true).with do |*params|
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params.first == @dir/"bin/pip" && params.last == "foo"
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end
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@formula.expects(:system).returns(true).with do |*params|
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params.first == @dir/"bin/pip" && params.last == "bar"
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end
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@venv.pip_install ["foo", "bar"]
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end
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def test_pip_install_accepts_resource
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res = Resource.new "test"
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res.expects(:stage).yields(nil)
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@formula.expects(:system).returns(true).with do |*params|
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params.first == @dir/"bin/pip" && params.last == Pathname.pwd
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end
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@venv.pip_install res
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end
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def test_pip_install_and_link_links_scripts
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bin = @dir/"bin"
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bin.mkpath
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dest = @formula.bin
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refute_predicate bin/"kilroy", :exist?
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refute_predicate dest/"kilroy", :exist?
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FileUtils.touch bin/"irrelevant"
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bin_before = Dir[bin/"*"]
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FileUtils.touch bin/"kilroy"
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bin_after = Dir[bin/"*"]
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@venv.expects(:pip_install).with("foo")
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Dir.expects(:[]).twice.returns(bin_before, bin_after)
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@venv.pip_install_and_link "foo"
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assert_predicate bin/"kilroy", :exist?
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assert_predicate dest/"kilroy", :exist?
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assert_predicate dest/"kilroy", :symlink?
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assert_equal((bin/"kilroy").realpath, (dest/"kilroy").realpath)
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refute_predicate dest/"irrelevant", :exist?
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end
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end
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