test: add coverage for Share Ledger report

erpnext/accounts/report/share_ledger/test_share_ledger.py

@@ -0,0 +1,98 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+import frappe
+
+from erpnext.accounts.report.share_ledger.share_ledger import execute
+from erpnext.tests.utils import ERPNextTestSuite
+
+COMPANY = "_Test Company"
+
+
+class TestShareLedger(ERPNextTestSuite):
+	def setUp(self):
+		self.shareholder = self.create_shareholder("_Test Share Ledger Holder")
+		# Issue 100 shares on 2026-06-01, then another 50 on 2026-06-10.
+		self.first = self.issue_shares(date="2026-06-01", from_no=1, to_no=100, rate=10)
+		self.second = self.issue_shares(date="2026-06-10", from_no=101, to_no=150, rate=12)
+
+	def test_ledger_lists_all_transfers_upto_date(self):
+		data = self.run_report(shareholder=self.shareholder, date="2026-06-30")
+
+		self.assertEqual(len(data), 2)
+
+		first_row, second_row = data
+		self.assertEqual(first_row[0], self.shareholder)
+		self.assertEqual(first_row[1], frappe.utils.getdate("2026-06-01"))
+		self.assertEqual(first_row[2], "Issue")
+		self.assertEqual(first_row[3], "Equity")
+		self.assertEqual(first_row[4], 100)
+		self.assertEqual(first_row[5], 10)
+		self.assertEqual(first_row[6], 1000)
+		self.assertEqual(first_row[7], COMPANY)
+		self.assertEqual(first_row[8], self.first)
+
+		self.assertEqual(second_row[1], frappe.utils.getdate("2026-06-10"))
+		self.assertEqual(second_row[4], 50)
+		self.assertEqual(second_row[5], 12)
+		self.assertEqual(second_row[6], 600)
+		self.assertEqual(second_row[8], self.second)
+
+	def test_running_balance_of_shares(self):
+		data = self.run_report(shareholder=self.shareholder, date="2026-06-30")
+
+		running = 0
+		balances = []
+		for row in data:
+			running += row[4]
+			balances.append(running)
+
+		self.assertEqual(balances, [100, 150])
+
+	def test_as_on_date_between_transfers_shows_only_first(self):
+		data = self.run_report(shareholder=self.shareholder, date="2026-06-05")
+
+		self.assertEqual(len(data), 1)
+		self.assertEqual(data[0][8], self.first)
+		self.assertEqual(data[0][4], 100)
+
+	def test_missing_date_throws(self):
+		self.assertRaises(frappe.ValidationError, execute, frappe._dict(shareholder=self.shareholder))
+
+	def test_missing_shareholder_returns_no_rows(self):
+		data = self.run_report(date="2026-06-30")
+		self.assertEqual(data, [])
+
+	def run_report(self, **extra):
+		filters = frappe._dict({"company": COMPANY, **extra})
+		return execute(filters)[1]
+
+	def create_shareholder(self, title):
+		doc = frappe.get_doc(
+			{
+				"doctype": "Shareholder",
+				"title": title,
+				"company": COMPANY,
+			}
+		).insert()
+		return doc.name
+
+	def issue_shares(self, date, from_no, to_no, rate):
+		doc = frappe.get_doc(
+			{
+				"doctype": "Share Transfer",
+				"transfer_type": "Issue",
+				"date": date,
+				"to_shareholder": self.shareholder,
+				"share_type": "Equity",
+				"from_no": from_no,
+				"to_no": to_no,
+				"no_of_shares": to_no - from_no + 1,
+				"rate": rate,
+				"company": COMPANY,
+				"asset_account": "Cash - _TC",
+				"equity_or_liability_account": "Creditors - _TC",
+			}
+		)
+		doc.submit()
+		return doc.name