For Before and After functions the first argument is optional

README.md

@@ -86,6 +86,8 @@ context for its steps then real `function () {}` might be used instead arrow
 `Before`, `beforeEach`, `After` and `afterEach` functions are also provided
 and are optional.
 
+For `Before` and `After` functions the first argument is optional.
+
 All functions except `BeforeEach` and `AfterEach` add some prefix to the
 description of the step.
 

lib/tap-given.js

@@ -26,10 +26,20 @@ function tapGiven (t) {
   }
 
   global.Before = (what, how) => {
-    return t.mocha.before('Before ' + what, how)
+    if (typeof what === 'string') {
+      return t.mocha.before('Before ' + what, how)
+    } else {
+      how = what
+      return t.mocha.before('Before', how)
+    }
   }
   global.After = (what, how) => {
-    return t.mocha.after('After ' + what, how)
+    if (typeof what === 'string') {
+      return t.mocha.before('After ' + what, how)
+    } else {
+      how = what
+      return t.mocha.before('After', how)
+    }
   }
 
   global.BeforeEach = t.mocha.beforeEach

package.json

@@ -1,6 +1,6 @@
 {
   "name": "tap-given",
-  "version": "0.5.2",
+  "version": "0.6.0",
   "description": "Given-When-Then BDD for TAP",
   "main": "lib/tap-given.js",
   "typings": "lib/tap-given.d.ts",