From 134d0bb4862f39a5d3415cc14c11990624f61f5a Mon Sep 17 00:00:00 2001
From: "Tim D. Smith" <git@tim-smith.us>
Date: Fri, 22 Jul 2016 23:03:13 -0700
Subject: [PATCH] Test Language::Python::Virtualenv

---
 Library/Homebrew/test/test_language_python.rb | 88 +++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 Library/Homebrew/test/test_language_python.rb

diff --git a/Library/Homebrew/test/test_language_python.rb b/Library/Homebrew/test/test_language_python.rb
new file mode 100644
index 0000000000..5e91c73b02
--- /dev/null
+++ b/Library/Homebrew/test/test_language_python.rb
@@ -0,0 +1,88 @@
+require "testing_env"
+require "language/python"
+require "resource"
+
+class LanguagePythonTests < Homebrew::TestCase
+  def setup
+    @dir = Pathname.new(mktmpdir)
+    resource = stub("resource", :stage => true)
+    @formula = mock("formula") do
+      stubs(:resource).returns(resource)
+    end
+    @venv = Language::Python::Virtualenv::Virtualenv.new(@formula, @dir, "python")
+  end
+
+  def teardown
+    FileUtils.rm_rf @dir
+  end
+
+  def test_virtualenv_creation
+    @formula.expects(:resource).with("homebrew-virtualenv").returns(
+      mock("resource", :stage => true)
+    )
+    @venv.create
+  end
+
+  # or at least doesn't crash the second time
+  def test_virtualenv_creation_is_idempotent
+    @formula.expects(:resource).with("homebrew-virtualenv").returns(
+      mock("resource", :stage => true)
+    )
+    @venv.create
+    FileUtils.mkdir_p @dir/"bin"
+    FileUtils.touch @dir/"bin/python"
+    @venv.create
+    FileUtils.rm @dir/"bin/python"
+  end
+
+  def test_pip_install_accepts_string
+    @formula.expects(:system).returns(true).with do |*params|
+      params.first == @dir/"bin/pip" && params.last == "foo"
+    end
+    @venv.pip_install "foo"
+  end
+
+  def test_pip_install_accepts_multiline_string
+    @formula.expects(:system).returns(true).with do |*params|
+      params.first == @dir/"bin/pip" && params[-2..-1] == ["foo", "bar"]
+    end
+    @venv.pip_install <<-EOS.undent
+      foo
+      bar
+    EOS
+  end
+
+  def test_pip_install_accepts_array
+    @formula.expects(:system).returns(true).with do |*params|
+      params.first == @dir/"bin/pip" && params.last == "foo"
+    end
+    @formula.expects(:system).returns(true).with do |*params|
+      params.first == @dir/"bin/pip" && params.last == "bar"
+    end
+    @venv.pip_install ["foo", "bar"]
+  end
+
+  def test_pip_install_accepts_resource
+    res = Resource.new "test"
+    res.expects(:stage).yields(nil)
+    @formula.expects(:system).returns(true).with do |*params|
+      params.first == @dir/"bin/pip" && params.last == Pathname.pwd
+    end
+    @venv.pip_install res
+  end
+
+  def test_link_scripts_links_scripts
+    bin = (@dir/"bin")
+    dest = (@dir/"dest")
+    bin.mkpath
+    refute((bin/"kilroy").exist?)
+    refute((dest/"kilroy").exist?)
+    FileUtils.touch bin/"irrelevant"
+    @venv.link_scripts(dest) { FileUtils.touch bin/"kilroy" }
+    assert((bin/"kilroy").exist?)
+    assert((dest/"kilroy").exist?)
+    assert((dest/"kilroy").symlink?)
+    assert_equal((bin/"kilroy").realpath, (dest/"kilroy").realpath)
+    refute((dest/"irrelevant").exist?)
+  end
+end