diff --git a/modules/stock_lot/tests/scenario_stock_lot_inventory_count.rst b/modules/stock_lot/tests/scenario_stock_lot_inventory_count.rst
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+==================================
+Stock Lot Inventory Count Scenario
+==================================
+
+Imports::
+
+    >>> from proteus import Model
+    >>> from trytond.modules.company.tests.tools import create_company, get_company
+    >>> from trytond.tests.tools import activate_modules, assertEqual
+
+Activate modules::
+
+    >>> config = activate_modules('stock_lot')
+    >>> config.skip_warning = True
+
+    >>> Inventory = Model.get('stock.inventory')
+    >>> Location = Model.get('stock.location')
+    >>> Lot = Model.get('stock.lot')
+    >>> ProductTemplate = Model.get('product.template')
+    >>> ProductUom = Model.get('product.uom')
+
+Create company::
+
+    >>> _ = create_company()
+    >>> company = get_company()
+
+Get stock location::
+
+    >>> storage_loc, = Location.find([('code', '=', 'STO')])
+
+Create product and lot::
+
+    >>> unit, = ProductUom.find([('name', '=', 'Unit')])
+    >>> template = ProductTemplate()
+    >>> template.name = 'Product'
+    >>> template.default_uom = unit
+    >>> template.type = 'goods'
+    >>> template.lot_required = ['storage']
+    >>> template.save()
+    >>> product, = template.products
+
+    >>> lot = Lot(number="0001", product=product)
+    >>> lot.save()
+
+Create an inventory::
+
+    >>> inventory = Inventory()
+    >>> inventory.location = storage_loc
+    >>> inventory.empty_quantity = 'keep'
+    >>> inventory.save()
+
+Count inventory::
+
+    >>> count = inventory.click('do_count')
+
+    >>> count.form.search = product
+    >>> count.execute('quantity')
+    Traceback (most recent call last):
+        ...
+    RequiredValidationError: ...
+
+    >>> count.form.search = lot
+    >>> count.execute('quantity')
+    >>> assertEqual(count.form.product, product)
+    >>> assertEqual(count.form.lot, lot)
+    >>> count.form.quantity
+    1.0
+    >>> count.form.total_quantity
+    1.0
+    >>> count.execute('add')
+    >>> count.execute('end')
+
+Check inventory::
+
+    >>> line, = inventory.lines
+    >>> assertEqual(line.product, product)
+    >>> assertEqual(line.lot, lot)
+    >>> line.quantity
+    1.0