more tests, now with 91% coverage!

test/unit/test_tracer_logger.js

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+var Log = require('../../src/lib/log');
+var TracerLogger = require('../../src/lib/loggers/tracer');
+var sinon = require('sinon');
+var parentLog;
+
+beforeEach(function () {
+  parentLog = new Log();
+});
+
+afterEach(function () {
+  parentLog.close();
+});
+
+function makeLogger(parent, levels) {
+  parent = parent || parentLog;
+  var config = {
+    levels: Log.parseLevels(levels || 'trace')
+  };
+  return new TracerLogger(parent, config);
+}
+
+var stub = require('./auto_release_stub').make();
+
+describe('Tracer Logger', function () {
+
+  require('./generic_logger_tests')(makeLogger);
+
+  describe('#write', function () {
+    it('comments out everything accept the curlCall', function () {
+      var logger = makeLogger();
+
+      stub(logger.stream, 'write', function (string) {
+        string.replace(/(^#.*$|^curlcall$)/mg, '').trim().should.be.exactly('');
+      });
+
+      logger.onTrace('message', 'curlcall');
+
+      logger.stream.write.callCount.should.eql(1);
+    });
+  });
+});