1 files changed, 69 insertions, 0 deletions
diff --git a/spec/unit/license_finder/pip_spec.rb b/spec/unit/license_finder/pip_spec.rb
new file mode 100644
index 0000000..8a5efbc
--- /dev/null
+++ b/spec/unit/license_finder/pip_spec.rb
@@ -0,0 +1,69 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe LicenseFinder::Pip do
+  let(:package_manager) { described_class.new(options) }
+  let(:options) { { ignored_groups: [], project_path: project.project_path } }
+  let(:project) { ProjectHelper.new }
+  let(:project_fixture) { fixture_file('python/pip/requirements') }
+
+  before do
+    project.mount(dir: project_fixture)
+  end
+
+  after do
+    project.cleanup
+  end
+
+  describe "#python_version" do
+    subject { package_manager.send(:python_version, env: env) }
+
+    let(:env) { {} }
+
+    context "when the version is specified in a .tool-versions file" do
+      before do
+        project.add_file(".tool-versions", "python 3.8.1")
+      end
+
+      specify { expect(subject).to eql('3.8.5') }
+    end
+
+    context "when the version is specified in a .python-version file" do
+      before do
+        project.add_file(".python-version", "3.8.0")
+      end
+
+      specify { expect(subject).to eql('3.8.5') }
+    end
+
+    context "when the version is specified via a ASDF_PYTHON_VERSION environment variable" do
+      let(:env) { { "ASDF_PYTHON_VERSION" => '3.8.1' } }
+
+      specify { expect(subject).to eql('3.8.5') }
+    end
+
+    [['2', '2.7.18'], ['3', '3.8.5']].each do |(major, version)|
+      context "when the version is specified via a LM_PYTHON_VERSION (#{major}) environment variable" do
+        let(:env) { { "LM_PYTHON_VERSION" => major } }
+
+        specify { expect(subject).to eql(version) }
+      end
+    end
+
+    context "when LM_PYTHON_VERSION and ASDF_PYTHON_VERSION is provided" do
+      let(:env) do
+        {
+          'ASDF_PYTHON_VERSION' => '2.7.19',
+          'LM_PYTHON_VERSION' => '3'
+        }
+      end
+
+      specify { expect(subject).to eql('3.8.5') }
+    end
+
+    context 'when a custom Python version is not specified' do
+      specify { expect(subject).to eql('3.8.5') }
+    end
+  end
+end