Resolve "Allow QA tests to run with `CHROME_HEADLESS=false`"

1 files changed, 64 insertions, 0 deletions

diff --git a/qa/spec/runtime/env_spec.rb b/qa/spec/runtime/env_spec.rb
new file mode 100644
index 00000000000..57a72a04507
--- /dev/null
+++ b/qa/spec/runtime/env_spec.rb
@@ -0,0 +1,64 @@
+describe QA::Runtime::Env do
+  before do
+    allow(ENV).to receive(:[]).and_call_original
+  end
+
+  describe '.chrome_headless?' do
+    context 'when there is an env variable set' do
+      it 'returns false when falsey values specified' do
+        stub_env('CHROME_HEADLESS', 'false')
+        expect(described_class.chrome_headless?).to be_falsey
+
+        stub_env('CHROME_HEADLESS', 'no')
+        expect(described_class.chrome_headless?).to be_falsey
+
+        stub_env('CHROME_HEADLESS', '0')
+        expect(described_class.chrome_headless?).to be_falsey
+      end
+
+      it 'returns true when anything else specified' do
+        stub_env('CHROME_HEADLESS', 'true')
+        expect(described_class.chrome_headless?).to be_truthy
+
+        stub_env('CHROME_HEADLESS', '1')
+        expect(described_class.chrome_headless?).to be_truthy
+
+        stub_env('CHROME_HEADLESS', 'anything')
+        expect(described_class.chrome_headless?).to be_truthy
+      end
+    end
+
+    context 'when there is no env variable set' do
+      it 'returns the default, true' do
+        stub_env('CHROME_HEADLESS', nil)
+        expect(described_class.chrome_headless?).to be_truthy
+      end
+    end
+  end
+
+  describe '.running_in_ci?' do
+    context 'when there is an env variable set' do
+      it 'returns true if CI' do
+        stub_env('CI', 'anything')
+        expect(described_class.running_in_ci?).to be_truthy
+      end
+
+      it 'returns true if CI_SERVER' do
+        stub_env('CI_SERVER', 'anything')
+        expect(described_class.running_in_ci?).to be_truthy
+      end
+    end
+
+    context 'when there is no env variable set' do
+      it 'returns true' do
+        stub_env('CI', nil)
+        stub_env('CI_SERVER', nil)
+        expect(described_class.running_in_ci?).to be_falsey
+      end
+    end
+  end
+
+  def stub_env(name, value)
+    allow(ENV).to receive(:[]).with(name).and_return(value)
+  end
+end