popall and getall bug while data empty

lib/index.coffee

@@ -108,6 +108,8 @@ class File_DB
       result = {}
       for key, position of data
         func.push @_getdataMaker key, position
+      unless func.length
+        return cb null, result
       flow = ep()
       flow.lazy func
       flow.lazy ->
@@ -128,6 +130,8 @@ class File_DB
       result = {}
       for key, position of data
         func.push @_popdataMaker key, position
+      unless func.length
+        return cb null, result
       flow = ep()
       flow.lazy func
       flow.lazy ->

package.json

@@ -1,6 +1,6 @@
 {
   "name": "shared-memory",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "description": "A k-v database using /shm/ to shared memory",
   "keywords": "shared, memory, kv, db, shm",
   "homepage": "https://github.com/ericdum/node-shared-memory",

test.js

@@ -145,6 +145,19 @@ describe("getAll", function(){
       done()
     })
   })
+
+  it('get empty data', function(done){
+    _c = db.index.getAll;
+    db.index.getAll = function(cb){
+      db.index.getAll = _c;
+      cb(null, {})
+    }
+    db.getAll(function(err, data){
+      expect(err).to.not.be.ok()
+      expect(data).to.be.eql({})
+      done()
+    })
+  })
 });
 
 describe("popAll", function(){
@@ -161,6 +174,19 @@ describe("popAll", function(){
       })
     })
   })
+
+  it('pop empty data', function(done){
+    _c = db.index.getAll;
+    db.index.getAll = function(cb){
+      db.index.getAll = _c;
+      cb(null, {})
+    }
+    db.popAll(function(err, data){
+      expect(err).to.not.be.ok()
+      expect(data).to.be.eql({})
+      done()
+    })
+  })
 });
 
 function regularExpect(key, value, cb) {