diff --git a/addons/account/__terp__.py b/addons/account/__terp__.py
index 591828da489..28b23c23cde 100644
--- a/addons/account/__terp__.py
+++ b/addons/account/__terp__.py
@@ -18,6 +18,7 @@
 		"account_demo.xml",
 		"project/project_demo.xml",
 		"project/analytic_account_demo.xml",
+		"account_unit_test.xml",
 	],
 	"update_xml" : [
 		"account_wizard.xml",
@@ -36,6 +37,8 @@
 		"project/project_report.xml",
 		"product_data.xml",
 		"product_view.xml",
+		
+		"account_assert_test.xml",
 	],
 #	"translations" : {
 #		"fr": "i18n/french_fr.csv"
diff --git a/addons/account/account.py b/addons/account/account.py
index 5ae52dc23fd..862118e5f9f 100644
--- a/addons/account/account.py
+++ b/addons/account/account.py
@@ -175,7 +175,9 @@ class account_account(osv.osv):
 
 	def _balance(self, cr, uid, ids, field_name, arg, context={}):
 		if not 'fiscalyear' in context:
-			context['fiscalyear'] = self.pool.get('account.fiscalyear').find(cr, uid)
+			context['fiscalyear'] = self.pool.get('account.fiscalyear').find(cr, uid, exception=False)
+		if not context['fiscalyear']:
+			return dict(map(lambda x: (x, 0.0), ids))
 
 		ids2 = self.search(cr, uid, [('parent_id', 'child_of', ids)])
 		acc_set = ",".join(map(str, ids2))
diff --git a/addons/account/account_assert_test.xml b/addons/account/account_assert_test.xml
new file mode 100644
index 00000000000..1de20f0da83
--- /dev/null
+++ b/addons/account/account_assert_test.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0"?>
+<terp>
+	<data>
+		<assert model="account.move" search="[]" string="For all account moves, the state is valid implies that the sum of credits equals the sum of debits">
+			<test expr="not len(line_id) or line_id[0].state != 'valid' or (sum([l.debit - l.credit for l in line_id]) == 0)" />
+		</assert>
+		
+		<!--assert model="account.invoice" search="[]" string="If the invoice is paid, third party accounting lines must be reconciled">
+			<test expr="not state == 'paid' or ..." />
+		</assert-->
+		
+		<assert model="account.account" search="[]" string="For all accounts, the balance is equal to the sum of the balance of its childs">
+			<test expr="not len(child_id) or balance == sum([c.balance for c in child_id])" />
+		</assert>
+		
+		<assert model="account.move.line" search="[('account_id.type', '=', 'view')]" string="Accounts of view type do not contain any move line">
+			<test expr="False" />
+		</assert>
+		
+		<assert model="account.invoice" search="[('state', 'in', ['paid', 'open'])]" string="The total amount of all paid or open invoices si correctly computed">
+			<test expr="sum([l.price_subtotal for l in invoice_line]) == amount_untaxed" />
+		</assert>
+		
+		<assert model="account.move.reconcile" search="[]" string="For each reconciliation, the sum of credits equals the sum of debits">
+			<test expr="sum([l.debit - l.credit for l in line_id]) == 0" />
+		</assert>
+		
+		<assert model="account.account" search="[]" string="Every account must have at least one parent account of type '0'">
+			<test expr="not parent_id or '0' in [p.code for p in parent_id]" /> 
+		</assert>
+	</data>
+</terp>
\ No newline at end of file
diff --git a/addons/account/account_move_line.py b/addons/account/account_move_line.py
index 7a4d4cc529c..9bacc2f8e87 100644
--- a/addons/account/account_move_line.py
+++ b/addons/account/account_move_line.py
@@ -298,8 +298,7 @@ class account_move_line(osv.osv):
 			raise osv.except_osv('Error', 'The account is not defined to be reconcile !')
 		if r[0][1] != None:
 			raise Exception('Some entries are already reconciled !')
-		if not self.pool.get('res.currency').is_zero(cr, uid, 
-				account.company_id.currency_id, writeoff):
+		if not self.pool.get('res.currency').is_zero(cr, uid, account.company_id.currency_id, writeoff):
 			if not writeoff_acc_id:
 				raise osv.except_osv('Warning', 'You have to provide an account for the write off entry !')
 			if writeoff > 0:
diff --git a/addons/account/account_unit_test.xml b/addons/account/account_unit_test.xml
new file mode 100644
index 00000000000..1a61882c334
--- /dev/null
+++ b/addons/account/account_unit_test.xml
@@ -0,0 +1,78 @@
+<?xml version="1.0"?>
+<terp>
+	<data>
+		<!-- This file must be loaded  _after_  account_demo.xml ! --> 
+		<record model="account.invoice" id="test_invoice_1">
+			<field name="currency_id" ref="base.EUR"/>
+			<field name="company_id" ref="base.main_company"/>
+			<field name="address_invoice_id" ref="base.res_partner_address_tang"/>
+			<field name="partner_id" ref="base.res_partner_asus"/>
+			<field name="journal_id" ref="account.sales_journal"/>
+			<field name="state">draft</field>
+			<field name="type">out_invoice</field>
+			<field name="account_id" ref="account.a_recv"/>
+			<field name="name">Test invoice 1</field>
+			<field name="address_contact_id" ref="base.res_partner_address_tang"/>
+		</record>
+		<record model="account.invoice.line" id="test_invoice_1_line_1">
+			<field name="name">Basic computer with Dvorak keyboard and left-handed mouse</field>
+			<field name="invoice_id" ref="test_invoice_1"/>
+			<field name="price_unit">250</field>
+			<field name="quantity">1</field>
+			<field name="account_id" ref="account.a_sale"/>
+		</record>
+		<record model="account.invoice.line" id="test_invoice_1_line_2">
+			<field name="name">Little server with raid 1 and 512ECC ram</field>
+			<field name="invoice_id" ref="test_invoice_1"/>
+			<field name="price_unit">800</field>
+			<field name="quantity">2</field>
+			<field name="account_id" ref="account.a_sale"/>
+		</record>
+		
+		<assert model="account.invoice" id="test_invoice_1" string="The currency unit of Test invoice 1 is EUR">
+			<test expr="currency_id.code">EUR</test>
+		</assert>
+		
+		<assert model="account.invoice" id="test_invoice_1" string="The amount of Test invoice 1 is correct" severity="error">
+			<test expr="sum([l.price_subtotal for l in invoice_line]) == 1850" />
+			<test expr="sum([l.price_subtotal for l in invoice_line]) == amount_untaxed" />
+		</assert>
+		
+		<workflow model="account.invoice" ref="test_invoice_1" action="invoice_open" />
+		
+		<assert model="account.invoice" id="test_invoice_1" string="Test invoice 1 is now open">
+			<test expr="state">open</test>
+		</assert>
+		
+		<!--
+		 journal_id: bank_journal
+		 period_id: period_7 (or 'period_' +time.strftime('m'))
+		 pay_amount: 1850 (or amount_total)
+		 acc_id = pool.get('account.journal').browse(cr, uid, journal_id, context).default_credit_account_id.id
+		 pay_and_reconcile(self, cr, uid,
+		 	ids,
+			pay_amount,
+			pay_account_id,
+			period_id,
+			pay_journal_id,
+			writeoff_acc_id,
+			writeoff_period_id,
+			writeoff_journal_id,
+			context={}):
+		-->
+		<function model="account.invoice" name="pay_and_reconcile">
+			<value eval="[ref('test_invoice_1')]" />
+			<value eval="1850" />
+			<value eval="ref('cash')" />
+			<value eval="ref('account.period_' + str(int(time.strftime('%m'))))" />
+			<value eval="ref('bank_journal')" />
+			<value eval="False" />
+			<value eval="ref('account.period_' + str(int(time.strftime('%m'))))" />
+			<value eval="False" />
+		</function>
+		
+		<assert model="account.invoice" id="test_invoice_1" string="Test invoice 1 is now paid">
+			<test expr="state">paid</test>
+		</assert>
+	</data>
+</terp> 
\ No newline at end of file
diff --git a/addons/l10n_be/account_demo.xml b/addons/l10n_be/account_demo.xml
index a8213f56b05..9824232e5ff 100644
--- a/addons/l10n_be/account_demo.xml
+++ b/addons/l10n_be/account_demo.xml
@@ -13,14 +13,14 @@
 		<field name="name">Sample invoice</field>
 		<field name="address_contact_id" ref="base.res_partner_address_tang"/>
 	</record>
-	<record model="account.invoice.line">
+	<record model="account.invoice.line" id="ceci_est_une_facture_line_1">
 		<field name="name">Basic computer with Dvorak keyboard and left-handed mouse</field>
 		<field name="invoice_id" ref="ceci_est_une_facture"/>
 		<field name="price_unit">250</field>
 		<field name="quantity">1</field>
 		<field name="account_id" ref="account.a_sale"/>
 	</record>
-	<record model="account.invoice.line">
+	<record model="account.invoice.line" id="ceci_est_une_facture_line_2">
 		<field name="name">Little server with raid 1 and 512ECC ram</field>
 		<field name="invoice_id" ref="ceci_est_une_facture"/>
 		<field name="price_unit">800</field>
diff --git a/addons/purchase/__terp__.py b/addons/purchase/__terp__.py
index fe6e7be99e7..458f404662d 100644
--- a/addons/purchase/__terp__.py
+++ b/addons/purchase/__terp__.py
@@ -6,7 +6,7 @@
 	"depends" : ["base", "account", "stock"],
 	"category" : "Generic Modules/Sales & Purchases",
 	"init_xml" : [],
-	"demo_xml" : ["purchase_demo.xml"],
+	"demo_xml" : ["purchase_demo.xml", "purchase_unit_test.xml"],
 	"update_xml" : [
 		"purchase_workflow.xml", 
 		"purchase_sequence.xml", 
diff --git a/addons/purchase/purchase_unit_test.xml b/addons/purchase/purchase_unit_test.xml
new file mode 100644
index 00000000000..4a2a2a5dff1
--- /dev/null
+++ b/addons/purchase/purchase_unit_test.xml
@@ -0,0 +1,140 @@
+<?xml version="1.0"?>
+<terp>
+	<data>
+		<!-- Resource: purchase.order -->
+		<!--
+		Optional fields:
+		'name': fields.char('Order Description', size=64, required=True, select=True),
+		'origin': fields.char('Origin', size=64),
+		'ref': fields.char('Order Reference', size=64),
+		'partner_ref': fields.char('Partner Reference', size=64),
+		'dest_address_id':fields.many2one('res.partner.address', 'Destination Address', states={'posted':[('readonly',True)]}),
+		'warehouse_id': fields.many2one('stock.warehouse', 'Warehouse', states={'posted':[('readonly',True)]}),
+		'invoice_method': fields.selection([('manual','Manual'),('order','From order'),('picking','From picking')], 'Invoicing method', required=True),
+		
+		Mandatory fields:
+		'pricelist_id':fields.many2one('product.pricelist', 'Pricelist', required=True, states={'confirmed':[('readonly',True)], 'approved':[('readonly',True)]}),
+		'partner_id':fields.many2one('res.partner', 'Partner', required=True, states={'confirmed':[('readonly',True)], 'approved':[('readonly',True)]}, change_default=True),
+		'partner_address_id':fields.many2one('res.partner.address', 'Address', required=True, states={'posted':[('readonly',True)]}),
+		'location_id': fields.many2one('stock.location', 'Delivery destination', required=True),
+
+		*2many relationships:
+		'order_line': fields.one2many('purchase.order.line', 'order_id', 'Order State', states={'confirmed':[('readonly',True)], 'approved':[('readonly',True)]}),
+		'invoice_id': fields.many2one('account.invoice', 'Invoice', readonly=True),
+		-->
+		<record model="purchase.order" id="test_purchase_1">
+			<field name="name">Test purchase</field>
+			<field name="dest_address_id" search="[]" model="res.partner.address"/>
+			<field name="pricelist_id" ref="list0"/>
+			<field name="partner_id" search="[]" model="res.partner"/>
+			<field name="partner_address_id" search="[]" model="res.partner.address"/>
+			<field name="location_id" search="[]" model="stock.location"/>
+		</record>
+		<!-- Resource: purchase.order.line -->
+		<!--
+		Optinal fields:
+		'name': fields.char('Description', size=64, required=True),
+		'product_qty': fields.float('Quantity', required=True, digits=(16,2)),
+		'taxes_id': fields.many2many('account.tax', 'purchase_order_taxe', 'ord_id', 'tax_id', 'Taxes'),
+		'product_uom': fields.many2one('product.uom', 'Product UOM', required=True),
+		'notes': fields.text('Notes'),
+		'account_analytic_id':fields.many2one('account.analytic.account', 'Analytic Account',),
+		
+		Mandatory fields:
+		'date_planned': fields.date('Date Promised', required=True),
+		'product_id': fields.many2one('product.product', 'Product', domain=[('purchase_ok','=',True)], change_default=True),
+		'price_unit': fields.float('Unit Price', required=True, digits=(16, int(config['price_accuracy']))),
+		'order_id': fields.many2one('purchase.order', 'Order Ref', select=True, required=True, ondelete='cascade'),
+		-->
+		<record model="purchase.order.line" id="test_purchase_1_line_1">
+			<field name="order_id" ref="test_purchase_1"/>
+			<field name="name">[PC1] Basic PC</field>
+			<field name="date_planned" eval="time.strftime('%Y-%m-%d', time.localtime(time.time() + 2 * 86400))" />
+			<field name="product_id" ref="product.product_product_pc1"/>
+			<field name="product_uom" ref="product.product_uom_unit"/>
+			<field name="price_unit">450</field>
+			<field name="product_qty">2</field>
+		</record>
+		<record model="purchase.order.line" id="test_purchase_1_line_3">
+			<field name="order_id" ref="test_purchase_1"/>
+			<field name="name">[MB1] Mainboard ASUStek A7N8X</field>
+			<field name="date_planned" eval="time.strftime('%Y-%m-%d', time.localtime(time.time() + 2 * 86400))" />
+			<field name="product_id" ref="product.product_product_mb1"/>
+			<field name="product_uom" ref="product.product_uom_unit"/>
+			<field name="price_unit">88</field>
+			<field name="product_qty">3</field>
+		</record>
+		
+		<assert model="purchase.order" id="test_purchase_1" string="The amount of Test purchase is correctly computed" severity="error">
+			<test expr="sum([l.price_subtotal for l in order_line]) == amount_untaxed" />
+		</assert>
+		
+		<workflow model="purchase.order" ref="test_purchase_1" action="purchase_confirm" />
+		
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase is now confirmed">
+			<test expr="state">confirmed</test>
+		</assert>
+		
+		<workflow model="purchase.order" ref="test_purchase_1" action="purchase_approve" uid="base.user_admin" />
+		
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase is now in progress">
+			<test expr="state">approved</test>
+		</assert>
+		
+		<!-- Treat generated invoice -->
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase has now a corresponding invoice" severity="fatal">
+			<test expr="bool(invoice_id)" />
+		</assert>
+		
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase's invoice has the same amount and is currently a draft" severity="error">
+			<test expr="invoice_id.amount_untaxed == amount_untaxed" />
+			<test expr="invoice_id.amount_total == amount_total" />
+			<test expr="invoice_id.state">draft</test>
+		</assert>
+		
+		<workflow model="account.invoice" action="invoice_open">
+			<value model="purchase.order" eval="obj(ref('test_purchase_1')).invoice_id.id" />
+		</workflow>
+		
+		<function model="account.invoice" name="pay_and_reconcile">
+			<value model="purchase.order" eval="[obj(ref('test_purchase_1')).invoice_id.id]" />
+			<value eval="1164" />
+			<value eval="ref('account.cash')" />
+			<value eval="ref('account.period_' + str(int(time.strftime('%m'))))" />
+			<value eval="ref('account.bank_journal')" />
+			<value eval="False" />
+			<value eval="ref('account.period_' + str(int(time.strftime('%m'))))" />
+			<value eval="False" />
+		</function>
+		
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase's invoice is now paid" severity="error">
+			<test expr="invoice_id.state">paid</test>
+		</assert>
+		
+		<!-- Treat generated picking -->
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase has now a corresponding packing" severity="fatal">
+			<test expr="len(picking_ids) == 1" />
+		</assert>
+		
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase's packing will be sent to the good address" severity="error">
+			<test expr="picking_ids[0].address_id == partner_address_id" />
+		</assert>
+		
+		<!-- Do the same as in wizard_partial_picking lines 143-144 -->
+		<function model="stock.picking" name="action_move">
+			<value model="purchase.order" eval="[obj(ref('test_purchase_1')).picking_ids[0].id]" />
+		</function>
+		
+		<workflow model="stock.picking" action="button_done">
+			<value model="purchase.order" eval="obj(ref('test_purchase_1')).picking_ids[0].id" />
+		</workflow>
+		
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase's packing is now done" severity="error">
+			<test expr="picking_ids[0].state">done</test>
+		</assert>
+		
+		<assert model="purchase.order" id="test_purchase_1" string="Test purchase is now completed" severity="fatal">
+			<test expr="state">done</test>
+		</assert>
+	</data>
+</terp> 
\ No newline at end of file
diff --git a/addons/sale/__terp__.py b/addons/sale/__terp__.py
index 618e692ad99..4f710ba2090 100644
--- a/addons/sale/__terp__.py
+++ b/addons/sale/__terp__.py
@@ -6,7 +6,7 @@
 	"depends" : ["product", "stock", "mrp"],
 	"category" : "Generic Modules/Sales & Purchases",
 	"init_xml" : [],
-	"demo_xml" : ["sale_demo.xml"],
+	"demo_xml" : ["sale_demo.xml", "sale_unit_test.xml"],
 	"description": """
 	The base module to manage quotations and sales orders.
 
diff --git a/addons/sale/sale_unit_test.xml b/addons/sale/sale_unit_test.xml
new file mode 100644
index 00000000000..70272b691d8
--- /dev/null
+++ b/addons/sale/sale_unit_test.xml
@@ -0,0 +1,122 @@
+<?xml version="1.0"?>
+<terp>
+	<data>
+		<!-- Resource: sale.order -->
+		<record model="sale.order" id="test_order_1">
+			<field name="name">Test order 1</field>
+			<field name="shop_id" ref="shop"/>
+			<field name="pricelist_id" search="[]" model="product.pricelist"/>
+			<field name="user_id" ref="base.user_admin"/>
+			<field name="partner_id" search="[]" model="res.partner"/>
+			<field name="partner_invoice_id" search="[]" model="res.partner.address"/>
+			<field name="partner_shipping_id" search="[]" model="res.partner.address"/>
+			<field name="partner_order_id" search="[]" model="res.partner.address"/>
+		</record>
+		<!-- Resource: sale.order.line -->
+		<record model="sale.order.line" id="test_order_1_line_1">
+			<field name="order_id" ref="test_order_1"/>
+			<field name="name">[PC1] Basic PC</field>
+			<field name="product_id" ref="product.product_product_pc1"/>
+			<field name="product_uom" ref="product.product_uom_unit"/>
+			<field name="price_unit">450</field>
+			<field name="product_uom_qty">2</field>
+			<field name="product_uos_qty">2</field>
+			<field name="type">make_to_stock</field>
+		</record>
+		<record model="sale.order.line" id="test_order_1_line_3">
+			<field name="order_id" ref="test_order_1"/>
+			<field name="name">[RAM512] DDR 512MB PC400</field>
+			<field name="product_id" ref="product.product_product_ram512"/>
+			<field name="product_uom" ref="product.product_uom_unit"/>
+			<field name="price_unit">90</field>
+			<field name="product_uom_qty">3</field>
+			<field name="product_uos_qty">3</field>
+			<field name="type">make_to_stock</field>
+		</record>
+		
+		<assert model="sale.order" id="test_order_1" string="The amount of Test order 1 is correctly computed" severity="error">
+			<test expr="sum([l.price_subtotal for l in order_line]) == amount_untaxed" />
+		</assert>
+		
+		<workflow model="sale.order" ref="test_order_1" action="order_confirm" />
+		
+		<assert model="sale.order" id="test_order_1" string="Test order 1 is now in 'Manual in progress' state">
+			<test expr="state">manual</test>
+		</assert>
+		
+		<workflow model="sale.order" ref="test_order_1" action="manual_invoice" uid="base.user_admin" />
+		
+		<assert model="sale.order" id="test_order_1" string="Test order 1 is now in progress">
+			<test expr="state">progress</test>
+		</assert>
+		
+		<!-- Treat generated invoice -->
+		<assert model="sale.order" id="test_order_1" string="Test order 1 has now a corresponding invoice" severity="fatal">
+			<test expr="len(invoice_ids) == 1" />
+		</assert>
+		
+		<assert model="sale.order" id="test_order_1" string="Test order 1's has the same amount and is currently a draft" severity="fatal">
+			<test expr="invoice_ids[0].amount_untaxed == amount_untaxed" />
+			<test expr="invoice_ids[0].amount_total == amount_total" />
+			<test expr="invoice_ids[0].state">draft</test>
+		</assert>
+		
+		<workflow model="account.invoice" action="invoice_open">
+			<value model="sale.order" eval="obj(ref('test_order_1')).invoice_ids[0].id" />
+		</workflow>
+		
+		<function model="account.invoice" name="pay_and_reconcile">
+			<value model="sale.order" eval="[obj(ref('test_order_1')).invoice_ids[0].id]" />
+			<value model="sale.order" eval="obj(ref('test_order_1')).amount_total" />
+			<value eval="ref('account.cash')" />
+			<value eval="ref('account.period_' + str(int(time.strftime('%m'))))" />
+			<value eval="ref('account.bank_journal')" />
+			<value eval="False" />
+			<value eval="ref('account.period_' + str(int(time.strftime('%m'))))" />
+			<value eval="False" />
+		</function>
+		
+		<assert model="sale.order" id="test_order_1" string="Test order 1's invoice is now paid" severity="fatal">
+			<test expr="invoice_ids[0].state">paid</test>
+		</assert>
+		
+		<!-- Treat generated picking -->
+		<assert model="sale.order" id="test_order_1" string="Test order 1 has now a correspending packing" severity="fatal">
+			<test expr="len(picking_ids) == 1" />
+		</assert>
+		
+		<assert model="sale.order" id="test_order_1" string="Test order 1's picking will be sent to the good address and is already confirmed" severity="error">
+			<test expr="picking_ids[0].address_id == partner_shipping_id" />
+			<test expr="picking_ids[0].state">confirmed</test>
+		</assert>
+		
+		<!-- Here we need to use the function tag because action_assign is a method of stock_picking and not part of the workflow -->
+		<function model="stock.picking" name="action_assign">
+			<value model="sale.order" eval="[obj(ref('test_order_1')).picking_ids[0].id]" />
+		</function>
+		
+		<assert model="sale.order" id="test_order_1" string="Test order 1's picking is now assigned" severity="fatal">
+			<test expr="picking_ids[0].state">assigned</test>
+		</assert>
+		
+		<!-- Do the same as in wizard_partial_picking lines 143-144 -->
+		<function model="stock.picking" name="action_move">
+			<value model="sale.order" eval="[obj(ref('test_order_1')).picking_ids[0].id]" />
+		</function>
+		
+		<workflow model="stock.picking" action="button_done">
+			<value model="sale.order" eval="obj(ref('test_order_1')).picking_ids[0].id" />
+		</workflow>
+		
+		<assert model="sale.order" id="test_order_1" string="Test order 1's picking is now done">
+			<test expr="picking_ids[0].state">done</test>
+		</assert>
+		
+		<!-- Run all schedulers -->
+		<function model="mrp.procurement" name="run_scheduler" />
+
+		<assert model="sale.order" id="test_order_1" string="Test order 1 is now done">
+			<test expr="state">done</test>
+		</assert>
+	</data>
+</terp>