Implements TAP TODO directive

lib/results.js

@@ -102,7 +102,7 @@ Results.prototype._watch = function (t) {
         write(encodeResult(res, self.count + 1));
         self.count ++;
 
-        if (res.ok) self.pass ++
+        if (res.ok || res.todo) self.pass ++
         else self.fail ++
     });
 

lib/test.js

@@ -48,6 +48,7 @@ function Test (name_, opts_, cb_) {
     this.assertCount = 0;
     this.pendingCount = 0;
     this._skip = args.opts.skip || false;
+    this._todo = args.opts.todo || false;
     this._timeout = args.opts.timeout;
     this._plan = undefined;
     this._cb = args.cb;
@@ -193,6 +194,7 @@ Test.prototype._assert = function assert (ok, opts) {
         id : self.assertCount ++,
         ok : Boolean(ok),
         skip : defined(extra.skip, opts.skip),
+        todo : defined(extra.todo, opts.todo, self._todo),
         name : defined(extra.message, opts.message, '(unnamed assert)'),
         operator : defined(extra.operator, opts.operator)
     };

readme.markdown

@@ -142,6 +142,7 @@ finished. Tests execute serially.
 
 Available `opts` options are:
 - opts.skip = true/false. See test.skip.
+- opts.todo = true/false. Test will be allowed to fail.
 - opts.timeout = 500. Set a timeout for the test, after which it will fail. 
   See test.timeoutAfter.
 

test/todo.js

@@ -0,0 +1,40 @@
+var tap = require('tap');
+var tape = require('../');
+var concat = require('concat-stream');
+
+tap.test('tape todo test', function (assert) {
+    var test = tape.createHarness({ exit: false });
+    assert.plan(1);
+
+    test.createStream().pipe(concat(function (body) {
+        assert.equal(
+            body.toString('utf8'),
+            'TAP version 13\n'
+            + '# success\n'
+            + 'ok 1 should be equal\n'
+            + '# failure\n'
+            + 'not ok 2 should be equal # TODO\n'
+            + '  ---\n'
+            + '    operator: equal\n'
+            + '    expected: false\n'
+            + '    actual:   true\n'
+            + '  ...\n'
+            + '\n'
+            + '1..2\n'
+            + '# tests 2\n'
+            + '# pass  2\n'
+            + '\n'
+            + '# ok\n'
+        )
+    }));
+
+    test("success", function (t) {
+        t.equal(true, true)
+        t.end()
+    })
+
+    test("failure", { todo: true }, function (t) {
+        t.equal(true, false)
+        t.end()
+    })
+})