def test_statement_task_2(mock_emitter):
"""Tests the statement method
PRECONDITIONS: Create parser with line source_code
EXECUTION: par.statement()
POSTCONDITION: No exception is thrown
"""
source_code = "TASK<EVENT=myEvent> myTask"
par = Parser(Lexer(source_code), mock_emitter)
par.statement()
def test_statement_rung_2(mock_emitter):
"""Tests the statement method
PRECONDITIONS: Create parser with line source_code
EXECUTION: par.statement()
POSTCONDITION: No exception is thrown
"""
source_code = "RUNG myRung"
par = Parser(Lexer(source_code), mock_emitter)
par.stack.append('ROUTINE')
par.statement()
def test_statement_routine_success(mock_emitter):
"""Tests the statement method
PRECONDITIONS: Create parser with line source_code
EXECUTION: par.statement()
POSTCONDITION: No exception is thrown
"""
source_code = "ROUTINE Main"
par = Parser(Lexer(source_code), mock_emitter)
par.stack.append('TASK')
par.statement()
def test_statement_task_3(mock_emitter):
"""Tests the statement method
PRECONDITIONS: Create parser with line source_code
EXECUTION: par.statement()
POSTCONDITION: Exception is thrown with correct error message
"""
source_code = "TASK<CONTINUOUS> myTask"
par = Parser(Lexer(source_code), mock_emitter)
with pytest.raises(CompilationError) as pytest_wrapped_e:
par.statement()
assert "Parsing error line #0 : Invalid task type CONTINUOUS" == str(pytest_wrapped_e.value)
def test_statement_routine_failure(mock_emitter):
"""Tests the statement method
PRECONDITIONS: Create parser with line source_code
EXECUTION: par.statement()
POSTCONDITION: Exception is thrown
"""
source_code = "ROUTINE "
par = Parser(Lexer(source_code), mock_emitter)
par.stack.append('TASK')
with pytest.raises(CompilationError) as pytest_wrapped_e:
par.statement()
assert "Parsing error line #1 : Expected "\
"IDENTIFIER, but found \n" == str(pytest_wrapped_e.value)