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Merge pull request #56888 from frappe/chore/test-lower-deduction-certificate

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test: add coverage for Lower Deduction Certificate
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Nabin Hait
2026-07-05 12:50:05 +05:30
committed by GitHub
parent 94afc2a05b c293cb8871
commit 2959bfcafa
1 changed files with 42 additions and 3 deletions
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45
erpnext/regional/doctype/lower_deduction_certificate/test_lower_deduction_certificate.py
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@@ -1,9 +1,48 @@
# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and Contributors
# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
# See license.txt
# import frappe
import frappe
from frappe.utils import add_days, getdate, today
from erpnext.accounts.utils import get_fiscal_year
from erpnext.tests.utils import ERPNextTestSuite
class TestLowerDeductionCertificate(ERPNextTestSuite):
pass
"""The certificate validates its date range and detects overlap with an existing
certificate for the same supplier/category."""
def make_ldc(self, valid_from, valid_upto, fiscal_year=None):
doc = frappe.new_doc("Lower Deduction Certificate")
doc.valid_from = valid_from
doc.valid_upto = valid_upto
doc.fiscal_year = fiscal_year
return doc
def dup(self, valid_from, valid_upto):
return frappe._dict(valid_from=getdate(valid_from), valid_upto=getdate(valid_upto))
def test_are_dates_overlapping(self):
# existing certificate spans Mar 1 - Jun 30
existing = self.dup("2026-03-01", "2026-06-30")
# new period starts inside the existing one
self.assertTrue(self.make_ldc("2026-05-01", "2026-08-31").are_dates_overlapping(existing))
# new period ends inside the existing one
self.assertTrue(self.make_ldc("2026-01-01", "2026-04-30").are_dates_overlapping(existing))
# new period fully envelops the existing one
self.assertTrue(self.make_ldc("2026-01-01", "2026-12-31").are_dates_overlapping(existing))
# new period is entirely after the existing one -> no overlap
self.assertFalse(self.make_ldc("2026-07-01", "2026-12-31").are_dates_overlapping(existing))
def test_valid_upto_cannot_precede_valid_from(self):
doc = self.make_ldc(valid_from="2026-06-30", valid_upto="2026-01-01")
self.assertRaises(frappe.ValidationError, doc.validate_dates)
def test_dates_must_fall_within_the_fiscal_year(self):
fy_name, fy_start, fy_end = get_fiscal_year(today())
# a range inside the fiscal year is accepted
self.make_ldc(fy_start, fy_end, fiscal_year=fy_name).validate_dates()
# a valid_from before the fiscal year start is rejected
before_fy = self.make_ldc(add_days(fy_start, -1), fy_end, fiscal_year=fy_name)
self.assertRaises(frappe.ValidationError, before_fy.validate_dates)