Finish work on delete case for hyperkv

Author: mels065

lib/delete.js

@@ -0,0 +1,11 @@
+module.exports = deleteRow
+
+function deleteRow (jawn, key) {
+  jawn.kv.del(key, function (err, node) {
+    if (err) console.log(err)
+    else {
+      console.log(node.key + ' has been deleted')
+      jawn.kv.emit('delete', node.key, node.value, node)
+    }
+  })
+}

test/hyperkv.js

@@ -25,9 +25,9 @@ test('import file to hyperkv', function (t) {
   })
 })
 
-test('add 3 rows to hyperkv', function (t) {
-  var jawn = freshJawn()
+var jawn = freshJawn()
 
+test('add 3 rows to hyperkv', function (t) {
   var testValues = [
     '{"foo":"bar","name":"leslie","age":"46"}',
     '{"foo":"baz","name":"jim","age":"25"}',
@@ -53,6 +53,21 @@ test('add 3 rows to hyperkv', function (t) {
   })
 })
 
+test('delete a row', function (t) {
+  jawn.deleteRow(3)
+
+  jawn.kv.on('delete', function (key, value, node) {
+    jawn.kv.get(3, function (err, values) {
+      if (err) {
+        console.log(err)
+      } else {
+        t.same(values, {}, 'Row 3 has been successfully deleted')
+      }
+      t.end()
+    })
+  })
+})
+
 function freshJawn () {
   return new Jawn({db: memdb()})
 }