1 files changed, 37 insertions, 0 deletions
diff --git a/qa/spec/support/waiter_spec.rb b/qa/spec/support/waiter_spec.rb
new file mode 100644
index 00000000000..8283b65e1be
--- /dev/null
+++ b/qa/spec/support/waiter_spec.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+require 'logger'
+
+describe QA::Support::Waiter do
+  before do
+    logger = ::Logger.new $stdout
+    logger.level = ::Logger::DEBUG
+    QA::Runtime::Logger.logger = logger
+  end
+
+  describe '.wait' do
+    context 'when the condition is true' do
+      it 'logs the start' do
+        expect { subject.wait(max: 0) {} }
+        .to output(/with wait: max 0; interval 0.1/).to_stdout_from_any_process
+      end
+
+      it 'logs the end' do
+        expect { subject.wait(max: 0) {} }
+        .to output(/ended wait after .* seconds$/).to_stdout_from_any_process
+      end
+    end
+
+    context 'when the condition is false' do
+      it 'logs the start' do
+        expect { subject.wait(max: 0) { false } }
+        .to output(/with wait: max 0; interval 0.1/).to_stdout_from_any_process
+      end
+
+      it 'logs the end' do
+        expect { subject.wait(max: 0) { false } }
+        .to output(/ended wait after .* seconds$/).to_stdout_from_any_process
+      end
+    end
+  end
+end