Parse operators implementation done with testing

Author: priyanka-amarnani-th

src/main/java/com/regnosys/rosetta/generator/python/expressions/PythonExpressionGenerator.xtend

@@ -42,6 +42,8 @@ import com.regnosys.rosetta.rosetta.expression.ToStringOperation
 import com.regnosys.rosetta.rosetta.expression.ToDateOperation
 import com.regnosys.rosetta.rosetta.expression.ToDateTimeOperation
 import com.regnosys.rosetta.rosetta.expression.ToIntOperation
+import com.regnosys.rosetta.rosetta.expression.ToTimeOperation
+import com.regnosys.rosetta.rosetta.expression.ToZonedDateTimeOperation
 import com.regnosys.rosetta.rosetta.expression.ToEnumOperation
 import com.regnosys.rosetta.rosetta.expression.RosettaDeepFeatureCall
 import com.regnosys.rosetta.rosetta.expression.MinOperation
@@ -92,6 +94,8 @@ class PythonExpressionGenerator {
             ToDateOperation: '''datetime.datetime.strptime(«generateExpression(expr.argument, ifLevel, isLambda)», "%Y-%m-%d").date()'''
             ToDateTimeOperation: '''datetime.datetime.strptime(«generateExpression(expr.argument, ifLevel, isLambda)», "%Y-%m-%d %H:%M:%S")'''
             ToIntOperation: '''int(«generateExpression(expr.argument, ifLevel, isLambda)»)'''
+            ToTimeOperation: '''datetime.datetime.strptime(«generateExpression(expr.argument, ifLevel, isLambda)», "%H:%M:%S").time()'''
+            ToZonedDateTimeOperation:'''datetime.datetime.strptime(«generateExpression(expr.argument, ifLevel, isLambda)», "%Y-%m-%d %H:%M:%S %z %Z")'''
             // Rune Operations
             RosettaAbsentExpression: '''(not rune_attr_exists(«generateExpression(expr.argument, ifLevel, isLambda)»))'''
             RosettaBinaryOperation: generateBinaryExpression(expr, ifLevel, isLambda)
@@ -253,6 +257,7 @@ class PythonExpressionGenerator {
 
         return _builder.toString
     }
+             
 
     private def String generateReference(RosettaReference expr, int ifLevel, boolean isLambda) {
         switch (expr) {

test/python_unit_tests/rosetta/ToTime.rosetta

@@ -0,0 +1,7 @@
+namespace rosetta_dsl.test.semantic.toTimeOp : <"generate Python unit tests from Rosetta.">
+
+type TestToTimeOp:
+    a string (1..1)
+    b time (0..1)
+    condition Test:
+        b = a to-time

test/python_unit_tests/rosetta/ToZonedDateTime.rosetta

@@ -0,0 +1,7 @@
+namespace rosetta_dsl.test.semantic.toZonedDateTimeOp : <"generate Python unit tests from Rosetta.">
+
+type TestToZonedDateTimeOp:
+    a string (1..1)
+    b zonedDateTime (0..1)
+    condition Test:
+        b = a to-zoned-date-time

test/python_unit_tests/semantics/test_to_time.py

@@ -0,0 +1,21 @@
+'''to-date-time unit tests'''
+
+import datetime
+import time
+
+import pytest
+
+from rosetta_dsl.test.semantic.toTimeOp.TestToTimeOp import TestToTimeOp
+
+def test_to_time_passes():
+    to_time_test= TestToTimeOp(a="11:45:23",b=datetime.time(11,45,23))
+    to_time_test.validate_model()
+
+def test_to_time_fails():
+    to_date_time_test=TestToTimeOp(a="14-30-00",b=datetime.time(14,30,0))
+    with pytest.raises(Exception):
+        to_date_time_test.validate_model()
+        
+if __name__ == "__main__":
+    test_to_time_passes()
+    test_to_time_fails()

test/python_unit_tests/semantics/test_to_zoned_date_time.py

@@ -0,0 +1,20 @@
+'''to-zoned-date-time unit tests'''
+
+import datetime
+
+import pytest
+
+from rosetta_dsl.test.semantic.toZonedDateTimeOp.TestToZonedDateTimeOp import TestToZonedDateTimeOp
+
+def test_to_zoned_date_time_passes(): 
+    to_zoned_date_time_test= TestToZonedDateTimeOp(a="2025-05-26 14:30:00 +0900 UTC",b=datetime.datetime(2025, 5, 26, 14, 30, 0, tzinfo=datetime.timezone(datetime.timedelta(hours=9), 'UTC')))
+    to_zoned_date_time_test.validate_model()
+
+def test_to_zoned_date_time_fails():
+    to_zoned_date_time_test= TestToZonedDateTimeOp(a="2025-05-26 14:30:00 +09x0 UTC",b=datetime.datetime(2025, 5, 26, 14, 30, 0, tzinfo=datetime.timezone(datetime.timedelta(hours=9), 'UTC')))
+    with pytest.raises(Exception):
+        to_zoned_date_time_test.validate_model()
+        
+if __name__ == "__main__":
+    test_to_zoned_date_time_passes()
+    test_to_zoned_date_time_fails()