Add Pry::Env

Env is a helper module to work with environment variables.

1 files changed, 26 insertions, 0 deletions

diff --git a/spec/env_spec.rb b/spec/env_spec.rb
new file mode 100644
index 00000000..8e42059f
--- /dev/null
+++ b/spec/env_spec.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+RSpec.describe Pry::Env do
+  describe "#[]" do
+    let(:key) { 'PRYTESTKEY' }
+
+    after { ENV.delete(key) }
+
+    context "when ENV contains the passed key" do
+      before { ENV[key] = 'val' }
+      after { ENV.delete(key) }
+
+      specify { expect(described_class[key]).to eq('val') }
+    end
+
+    context "when ENV doesn't contain the passed key" do
+      specify { expect(described_class[key]).to be_nil }
+    end
+
+    context "when ENV contains the passed key but its value is nil" do
+      before { ENV[key] = '' }
+
+      specify { expect(described_class[key]).to be_nil }
+    end
+  end
+end