ran into some confusion with default values while changing postgres adapter, added postgres default values test

test/postgres_default_values_test.coffee

@@ -0,0 +1,67 @@
+juggling = require('../index')
+Schema = juggling.Schema
+Text = Schema.Text
+
+DBNAME = process.env.DBNAME || 'myapp_test'
+DBUSER = process.env.DBUSER || 'root'
+DBPASS = ''
+DBENGINE = process.env.DBENGINE || 'postgres'
+
+require('./spec_helper').init module.exports
+
+schema = new Schema DBENGINE, database: '', username: DBUSER, password: DBPASS
+schema.log = (q) -> console.log q
+
+query = (sql, cb) ->
+  schema.adapter.query sql, cb
+
+User = schema.define 'User',
+  name: {type: String, default: "guest"}
+  credits: {type: Number, default: 0}
+
+withBlankDatabase = (cb) ->
+  db = schema.settings.database = DBNAME
+  query 'DROP DATABASE IF EXISTS ' + db, (err) ->
+    query 'CREATE DATABASE ' + db, ->
+      schema.automigrate(cb)
+
+it 'default values should not interfere with fully specified objects', (test)->
+  withBlankDatabase (err)->
+    test.ok !err, "error while setting up blank database"
+    new User()
+    User.create {name: "Steve", credits: 47}, (err, obj)->
+      console.log "error creating user: #{err}"
+      test.ok !err, "error occurred when saving user with all values specified"
+      test.ok obj.id?, 'saved object has no id'
+      console.log "id: #{obj.id}"
+      test.equals obj.name, "Steve", "User's name didn't save correctly"
+      test.equals obj.credits, 47, "User's credits didn't save correctly"
+      test.done()
+
+it 'objects should have default values when some fields are unspecified', (test)->
+  User.create {credits: 2}, (err, obj)->
+    console.log "error creating user: #{err}"
+    test.ok !err, "error occurred when saving user with some values unspecified"
+    test.ok obj.id?, 'saved object has no id'
+    test.equals obj.name, "guest", "User's name didn't save correctly"
+    test.equals obj.credits, 2, "User's credits didn't save correctly"
+    User.create {name: "Jeanette Adele McKenzie"}, (err, obj)->
+      console.log "error creating user: #{err}"
+      test.ok !err, "error occurred when saving user with some values unspecified"
+      test.ok obj.id?, 'saved object has no id'
+      test.equals obj.name, "Jeanette Adele McKenzie", "User's name didn't save correctly"
+      test.equals obj.credits, 0, "User's credits didn't save correctly"
+      test.done()
+
+it 'objects should have default values when all fields are left unspecified', (test)->
+  User.create {}, (err, obj)->
+    console.log "error creating user: #{err}"
+    test.ok !err, "error occurred when saving user with all values specified"
+    test.ok obj.id?, 'saved object has no id'
+    test.equals obj.name, "guest", "User's name didn't save correctly"
+    test.equals obj.credits, 0, "User's credits didn't save correctly"
+    test.done()
+
+it 'should disconnect when done', (test)->
+  schema.disconnect()
+  test.done()