Test update effect after a reload of the database

test/db.test.js

@@ -232,6 +232,33 @@ describe('Database', function () {
       var d = new Datastore(testDb)
         , id1, id2, id3;
 
+      // Test DB state after update and reload
+      function testPostUpdateState (cb) {
+        d.find({}, function (err, docs) {
+          var doc1 = _.find(docs, function (d) { return d._id === id1; })
+            , doc2 = _.find(docs, function (d) { return d._id === id2; })
+            , doc3 = _.find(docs, function (d) { return d._id === id3; })
+            ;
+
+          docs.length.should.equal(3);
+
+          Object.keys(doc1).length.should.equal(2);
+          doc1.somedata.should.equal('ok');
+          doc1._id.should.equal(id1);
+
+          Object.keys(doc2).length.should.equal(2);
+          doc2.newDoc.should.equal('yes');
+          doc2._id.should.equal(id2);
+
+          Object.keys(doc3).length.should.equal(2);
+          doc3.newDoc.should.equal('yes');
+          doc3._id.should.equal(id3);
+
+          return cb();
+        });
+      }
+
+      // Actually launch the tests
       async.waterfall([
       function (cb) {
         d.loadDatabase(function (err) {
@@ -251,35 +278,85 @@ describe('Database', function () {
         d.update({ somedata: 'again' }, { newDoc: 'yes' }, { multi: true }, function (err, n) {
           assert.isNull(err);
           n.should.equal(2);
+          return cb();
+        });
+      }
+      , async.apply(testPostUpdateState)
+      , function (cb) {
+        d.loadDatabase(function (err) { cb(err); });
+      }
+      , async.apply(testPostUpdateState)
+      ], done);
+    });
 
-          d.find({}, function (err, docs) {
-            var doc1 = _.find(docs, function (d) { return d._id === id1; })
-              , doc2 = _.find(docs, function (d) { return d._id === id2; })
-              , doc3 = _.find(docs, function (d) { return d._id === id3; })
-              ;
+    it("Can update only one document matching the query", function (done) {
+      var d = new Datastore(testDb)
+        , id1, id2, id3;
 
-            docs.length.should.equal(3);
+      // Test DB state after update and reload
+      function testPostUpdateState (cb) {
+        d.find({}, function (err, docs) {
+          var doc1 = _.find(docs, function (d) { return d._id === id1; })
+            , doc2 = _.find(docs, function (d) { return d._id === id2; })
+            , doc3 = _.find(docs, function (d) { return d._id === id3; })
+            ;
 
-            Object.keys(doc1).length.should.equal(2);
-            doc1.somedata.should.equal('ok');
-            doc1._id.should.equal(id1);
+          docs.length.should.equal(3);
 
-            Object.keys(doc2).length.should.equal(2);
-            doc2.newDoc.should.equal('yes');
-            doc2._id.should.equal(id2);
+          Object.keys(doc1).length.should.equal(2);
+          doc1.somedata.should.equal('ok');
+          doc1._id.should.equal(id1);
 
-            Object.keys(doc3).length.should.equal(2);
-            doc3.newDoc.should.equal('yes');
-            doc3._id.should.equal(id3);
+          Object.keys(doc2).length.should.equal(2);
+          doc2.newDoc.should.equal('yes');
+          doc2._id.should.equal(id2);
 
-            return cb();
+          // Third object was not updated
+          Object.keys(doc3).length.should.equal(2);
+          doc3.somedata.should.equal('again');
+          doc3._id.should.equal(id3);
+
+          return cb();
+        });
+      }
+
+      // Actually launch the test
+      async.waterfall([
+      function (cb) {
+        d.loadDatabase(function (err) {
+          d.insert({ somedata: 'ok' }, function (err, doc1) {
+            id1 = doc1._id;
+            d.insert({ somedata: 'again', plus: 'additional data' }, function (err, doc2) {
+              id2 = doc2._id;
+              d.insert({ somedata: 'again' }, function (err, doc3) {
+                id3 = doc3._id;
+                return cb(err);
+              });
+            });
           });
         });
       }
+      , function (cb) {   // Test with query that doesn't match anything
+        d.update({ somedata: 'again' }, { newDoc: 'yes' }, { multi: false }, function (err, n) {
+          assert.isNull(err);
+          n.should.equal(1);
+          return cb();
+        });
+      }
+      , async.apply(testPostUpdateState)
+      , function (cb) {
+        d.loadDatabase(function (err) { return cb(err); });
+      }
+      , async.apply(testPostUpdateState)   // The persisted state has been updated
       ], done);
     });
 
-    it("Can update only one document matching the query", function (done) {
+  });   // ==== End of 'Update' ==== //
+
+
+  describe('Remove', function () {
+
+    it('Can remove multiple documents', function (done) {
       var d = new Datastore(testDb)
         , id1, id2, id3;
 
@@ -299,30 +376,16 @@ describe('Database', function () {
         });
       }
       , function (cb) {   // Test with query that doesn't match anything
-        d.update({ somedata: 'again' }, { newDoc: 'yes' }, { multi: false }, function (err, n) {
+        d.remove({ somedata: 'again' }, { multi: true }, function (err, n) {
           assert.isNull(err);
-          n.should.equal(1);
+          n.should.equal(2);
 
           d.find({}, function (err, docs) {
-            var doc1 = _.find(docs, function (d) { return d._id === id1; })
-              , doc2 = _.find(docs, function (d) { return d._id === id2; })
-              , doc3 = _.find(docs, function (d) { return d._id === id3; })
-              ;
+            docs.length.should.equal(1);
 
-            docs.length.should.equal(3);
-
-            Object.keys(doc1).length.should.equal(2);
-            doc1.somedata.should.equal('ok');
-            doc1._id.should.equal(id1);
-
-            Object.keys(doc2).length.should.equal(2);
-            doc2.newDoc.should.equal('yes');
-            doc2._id.should.equal(id2);
-
-            // Third object was not updated
-            Object.keys(doc3).length.should.equal(2);
-            doc3.somedata.should.equal('again');
-            doc3._id.should.equal(id3);
+            Object.keys(docs[0]).length.should.equal(2);
+            docs[0]._id.should.equal(id1);
+            docs[0].somedata.should.equal('ok');
 
             return cb();
           });
@@ -332,7 +395,7 @@ describe('Database', function () {
     });
 
 
-  });   // ==== End of 'Update' ==== //
+  });   // ==== End of 'Remove' ==== //