feat: time calculation business logic

tests/test_time_calc.py

@@ -0,0 +1,42 @@
+from app.business.time_calc import (
+    minutes_to_str,
+    work_minutes_reference,
+    week_balance_minutes,
+)
+
+
+def test_minutes_to_str_basic():
+    assert minutes_to_str(465) == "7h45"
+
+
+def test_minutes_to_str_zero():
+    assert minutes_to_str(0) == "0h00"
+
+
+def test_minutes_to_str_negative():
+    assert minutes_to_str(-75) == "-1h15"
+
+
+def test_work_minutes_reference_normal_day():
+    assert work_minutes_reference("WORK") == 465
+    assert work_minutes_reference("TT") == 465
+    assert work_minutes_reference("FORMATION") == 465
+
+
+def test_work_minutes_reference_garde():
+    assert work_minutes_reference("GARDE") == 600
+
+
+def test_work_minutes_reference_absence():
+    assert work_minutes_reference("RTT") == 0
+    assert work_minutes_reference("CONGE") == 0
+    assert work_minutes_reference("MALADE") == 0
+    assert work_minutes_reference("FERIE") == 0
+
+
+def test_week_balance_positive():
+    assert week_balance_minutes(2400, 2325) == 75
+
+
+def test_week_balance_negative():
+    assert week_balance_minutes(2200, 2325) == -125