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Diffstat (limited to 'spec/bundler/bundler/environment_preserver_spec.rb')
-rw-r--r-- | spec/bundler/bundler/environment_preserver_spec.rb | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/spec/bundler/bundler/environment_preserver_spec.rb b/spec/bundler/bundler/environment_preserver_spec.rb new file mode 100644 index 0000000000..530ca6f835 --- /dev/null +++ b/spec/bundler/bundler/environment_preserver_spec.rb @@ -0,0 +1,79 @@ +# frozen_string_literal: true + +RSpec.describe Bundler::EnvironmentPreserver do + let(:preserver) { described_class.new(env, ["foo"]) } + + describe "#backup" do + let(:env) { { "foo" => "my-foo", "bar" => "my-bar" } } + subject { preserver.backup } + + it "should create backup entries" do + expect(subject["BUNDLER_ORIG_foo"]).to eq("my-foo") + end + + it "should keep the original entry" do + expect(subject["foo"]).to eq("my-foo") + end + + it "should not create backup entries for unspecified keys" do + expect(subject.key?("BUNDLER_ORIG_bar")).to eq(false) + end + + it "should not affect the original env" do + subject + expect(env.keys.sort).to eq(%w[bar foo]) + end + + context "when a key is empty" do + let(:env) { { "foo" => "" } } + + it "should not create backup entries" do + expect(subject).not_to have_key "BUNDLER_ORIG_foo" + end + end + + context "when an original key is set" do + let(:env) { { "foo" => "my-foo", "BUNDLER_ORIG_foo" => "orig-foo" } } + + it "should keep the original value in the BUNDLER_ORIG_ variable" do + expect(subject["BUNDLER_ORIG_foo"]).to eq("orig-foo") + end + + it "should keep the variable" do + expect(subject["foo"]).to eq("my-foo") + end + end + end + + describe "#restore" do + subject { preserver.restore } + + context "when an original key is set" do + let(:env) { { "foo" => "my-foo", "BUNDLER_ORIG_foo" => "orig-foo" } } + + it "should restore the original value" do + expect(subject["foo"]).to eq("orig-foo") + end + + it "should delete the backup value" do + expect(subject.key?("BUNDLER_ORIG_foo")).to eq(false) + end + end + + context "when no original key is set" do + let(:env) { { "foo" => "my-foo" } } + + it "should keep the current value" do + expect(subject["foo"]).to eq("my-foo") + end + end + + context "when the original key is empty" do + let(:env) { { "foo" => "my-foo", "BUNDLER_ORIG_foo" => "" } } + + it "should keep the current value" do + expect(subject["foo"]).to eq("my-foo") + end + end + end +end |