1 files changed, 31 insertions, 0 deletions
diff --git a/spec/lib/gitlab/sidekiq_logging/json_formatter_spec.rb b/spec/lib/gitlab/sidekiq_logging/json_formatter_spec.rb
new file mode 100644
index 00000000000..fed9aeba30c
--- /dev/null
+++ b/spec/lib/gitlab/sidekiq_logging/json_formatter_spec.rb
@@ -0,0 +1,31 @@
+require 'spec_helper'
+
+describe Gitlab::SidekiqLogging::JSONFormatter do
+  let(:hash_input) { { foo: 1, bar: 'test' } }
+  let(:message) { 'This is a test' }
+  let(:timestamp) { Time.now }
+
+  it 'wraps a Hash' do
+    result = subject.call('INFO', timestamp, 'my program', hash_input)
+
+    data = JSON.parse(result)
+    expected_output = hash_input.stringify_keys
+    expected_output['severity'] = 'INFO'
+    expected_output['time'] = timestamp.utc.iso8601(3)
+
+    expect(data).to eq(expected_output)
+  end
+
+  it 'wraps a String' do
+    result = subject.call('DEBUG', timestamp, 'my string', message)
+
+    data = JSON.parse(result)
+    expected_output = {
+      severity: 'DEBUG',
+      time: timestamp.utc.iso8601(3),
+      message: message
+    }
+
+    expect(data).to eq(expected_output.stringify_keys)
+  end
+end