Merge branch 'buffered-tests'

bin/usage.txt

@@ -173,6 +173,17 @@ Environment Variables:
                               running child tests so that their output
                               is parseable by the test harness.
 
+  TAP_DIAG                    Set to '1' to show diagnostics by
+                              default for passing tests.  Set to '0'
+                              to NOT show diagnostics by default for
+                              failing tests.  If not one of these two
+                              values, then diagnostics are printed by
+                              default for failing tests, and not for
+                              passing tests.
+
+  TAP_BUFFER                  Set to '1' to run subtests in buffered
+                              mode by default.
+
   _TAP_COVERAGE_              Reserved for internal use.
 
 Config Files:

lib/root.js

@@ -38,6 +38,7 @@ process.on('exit', function (code) {
 
 tap.pipe = function () {
   didPipe = true
+  tap._runChild = Test.prototype._runChild
   tap.push = Test.prototype.push
   tap.pipe = Test.prototype.pipe
   process.on('uncaughtException', onUncaught)
@@ -52,6 +53,11 @@ function pipe () {
   tap.pipe(process.stdout)
 }
 
+tap._runChild = function _runChild () {
+  pipe()
+  return tap._runChild.apply(tap, arguments)
+}
+
 tap.push = function push () {
   pipe()
   return tap.push.apply(tap, arguments)