Update unit tests for code generator and make code generator more testable.
This commit is contained in:
Azim Khan
Mohammad Azim Khan
parent
acc5473ac9
commit
599cd247e6
@ -347,6 +347,8 @@ def parse_functions(funcs_f):
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def escaped_split(str, ch):
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"""
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Split str on character ch but ignore escaped \{ch}
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Since return value is used to write back to the intermediate data file.
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Any escape characters in the input are retained in the output.
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:param str:
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:param ch:
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@ -458,15 +460,98 @@ else
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return exp_code
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def find_unique_id(val, vals):
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def write_deps(out_data_f, test_deps, unique_deps):
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"""
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Check if val already in vals. Gives a unique Identifier for the val.
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:param val:
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:param vals:
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Write dependencies to intermediate test data file.
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It also returns dependency check code.
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:param out_data_f:
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:param dep:
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:param unique_deps:
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:return:
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"""
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if val not in vals:
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vals.append(val)
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dep_check_code = ''
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if len(test_deps):
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out_data_f.write('depends_on')
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for dep in test_deps:
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if dep not in unique_deps:
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unique_deps.append(dep)
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dep_id = unique_deps.index(dep)
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dep_check_code += gen_dep_check(dep_id, dep)
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else:
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dep_id = unique_deps.index(dep)
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out_data_f.write(':' + str(dep_id))
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out_data_f.write('\n')
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return dep_check_code
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def write_parameters(out_data_f, test_args, func_args, unique_expressions):
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"""
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Writes test parameters to the intermediate data file.
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Also generates expression code.
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:param out_data_f:
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:param test_args:
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:param func_args:
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:param unique_expressions:
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:return:
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"""
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expression_code = ''
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for i in xrange(len(test_args)):
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typ = func_args[i]
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val = test_args[i]
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# check if val is a non literal int val
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if typ == 'int' and not re.match('(\d+$)|((0x)?[0-9a-fA-F]+$)', val): # its an expression
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typ = 'exp'
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if val not in unique_expressions:
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unique_expressions.append(val)
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# exp_id can be derived from len(). But for readability and consistency with case of existing let's
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# use index().
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exp_id = unique_expressions.index(val)
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expression_code += gen_expression_check(exp_id, val)
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val = exp_id
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else:
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val = unique_expressions.index(val)
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out_data_f.write(':' + typ + ':' + str(val))
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out_data_f.write('\n')
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return expression_code
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def gen_suite_deps_checks(suite_deps, dep_check_code, expression_code):
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"""
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Adds preprocessor checks for test suite dependencies.
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:param suite_deps:
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:param dep_check_code:
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:param expression_code:
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:return:
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"""
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# void unused params
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if len(dep_check_code) == 0:
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dep_check_code = '(void) dep_id;\n'
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if len(expression_code) == 0:
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expression_code = '(void) exp_id;\n'
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expression_code += '(void) out_value;\n'
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if len(suite_deps):
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ifdef = gen_deps_one_line(suite_deps)
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dep_check_code = '''
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{ifdef}
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{code}
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#else
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(void) dep_id;
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#endif
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'''.format(ifdef=ifdef, code=dep_check_code)
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expression_code = '''
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{ifdef}
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{code}
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#else
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(void) exp_id;
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(void) out_value;
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#endif
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'''.format(ifdef=ifdef, code=expression_code)
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return dep_check_code, expression_code
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def gen_from_test_data(data_f, out_data_f, func_info, suite_deps):
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@ -486,64 +571,24 @@ def gen_from_test_data(data_f, out_data_f, func_info, suite_deps):
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for test_name, function_name, test_deps, test_args in parse_test_data(data_f):
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out_data_f.write(test_name + '\n')
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func_id, func_args = func_info['test_' + function_name]
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if len(test_deps):
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out_data_f.write('depends_on')
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for dep in test_deps:
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if dep not in unique_deps:
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unique_deps.append(dep)
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dep_id = unique_deps.index(dep)
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dep_check_code += gen_dep_check(dep_id, dep)
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else:
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dep_id = unique_deps.index(dep)
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out_data_f.write(':' + str(dep_id))
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out_data_f.write('\n')
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# Write deps
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dep_check_code += write_deps(out_data_f, test_deps, unique_deps)
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# Write test function name
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test_function_name = 'test_' + function_name
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assert test_function_name in func_info, "Function %s not found!" % test_function_name
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func_id, func_args = func_info[test_function_name]
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out_data_f.write(str(func_id))
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# Write parameters
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assert len(test_args) == len(func_args), \
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"Invalid number of arguments in test %s. See function %s signature." % (test_name, function_name)
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out_data_f.write(str(func_id))
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for i in xrange(len(test_args)):
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typ = func_args[i]
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val = test_args[i]
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expression_code += write_parameters(out_data_f, test_args, func_args, unique_expressions)
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# check if val is a non literal int val
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if typ == 'int' and not re.match('\d+', val): # its an expression # FIXME: Handle hex format. Tip: instead try converting int(str, 10) and int(str, 16)
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typ = 'exp'
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if val not in unique_expressions:
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unique_expressions.append(val)
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# exp_id can be derived from len(). But for readability and consistency with case of existing let's
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# use index().
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exp_id = unique_expressions.index(val)
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expression_code += gen_expression_check(exp_id, val)
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val = exp_id
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else:
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val = unique_expressions.index(val)
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out_data_f.write(':' + typ + ':' + str(val))
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out_data_f.write('\n\n')
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# Write a newline as test case separator
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out_data_f.write('\n')
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# void unused params
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if len(dep_check_code) == 0:
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dep_check_code = '(void) dep_id;\n'
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if len(expression_code) == 0:
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expression_code = '(void) exp_id;\n'
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expression_code += '(void) out_value;\n'
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ifdef = gen_deps_one_line(suite_deps)
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if len(suite_deps):
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dep_check_code = '''
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{ifdef}
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{code}
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#else
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(void) dep_id;
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#endif
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'''.format(ifdef=ifdef, code=dep_check_code)
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expression_code = '''
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{ifdef}
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{code}
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#else
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(void) exp_id;
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(void) out_value;
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#endif
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'''.format(ifdef=ifdef, code=expression_code)
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dep_check_code, expression_code = gen_suite_deps_checks(suite_deps, dep_check_code, expression_code)
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return dep_check_code, expression_code
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@ -840,7 +840,9 @@ void func()
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class ExcapedSplit(TestCase):
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"""
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Test suite for testing escaped_split()
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Test suite for testing escaped_split().
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Note: Since escaped_split() output is used to write back to the intermediate data file. Any escape characters
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in the input are retained in the output.
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"""
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def test_invalid_input(self):
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@ -874,7 +876,7 @@ class ExcapedSplit(TestCase):
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"""
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s = 'yahoo\:google:facebook'
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splits = escaped_split(s, ':')
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self.assertEqual(splits, ['yahoo:google', 'facebook'])
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self.assertEqual(splits, ['yahoo\:google', 'facebook'])
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def test_escaped_escape(self):
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"""
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@ -883,7 +885,7 @@ class ExcapedSplit(TestCase):
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"""
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s = 'yahoo\\\:google:facebook'
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splits = escaped_split(s, ':')
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self.assertEqual(splits, ['yahoo\\', 'google', 'facebook'])
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self.assertEqual(splits, ['yahoo\\\\', 'google', 'facebook'])
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def test_all_at_once(self):
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"""
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@ -892,7 +894,8 @@ class ExcapedSplit(TestCase):
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"""
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s = 'yahoo\\\:google:facebook\:instagram\\\:bbc\\\\:wikipedia'
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splits = escaped_split(s, ':')
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self.assertEqual(splits, ['yahoo\\', 'google', 'facebook:instagram\\', 'bbc\\', 'wikipedia'])
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self.assertEqual(splits, ['yahoo\\\\', 'google', 'facebook\:instagram\\\\', 'bbc\\\\', 'wikipedia'])
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class ParseTestData(TestCase):
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"""
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@ -1102,12 +1105,420 @@ else
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self.assertRaises(AssertionError, gen_expression_check, -1, 'YAHOO')
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class WriteDeps(TestCase):
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"""
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Test suite for testing write_deps.
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"""
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def test_no_test_deps(self):
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"""
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Test when test_deps is empty.
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:return:
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"""
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s = StringIOWrapper('test_suite_ut.data', '')
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unique_deps = []
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dep_check_code = write_deps(s, [], unique_deps)
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self.assertEqual(dep_check_code, '')
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self.assertEqual(len(unique_deps), 0)
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self.assertEqual(s.getvalue(), '')
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def test_unique_dep_ids(self):
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"""
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:return:
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"""
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s = StringIOWrapper('test_suite_ut.data', '')
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unique_deps = []
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dep_check_code = write_deps(s, ['DEP3', 'DEP2', 'DEP1'], unique_deps)
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expect_dep_check_code = '''
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if ( dep_id == 0 )
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{
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#if defined(DEP3)
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return( DEPENDENCY_SUPPORTED );
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#else
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return( DEPENDENCY_NOT_SUPPORTED );
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#endif
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}
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else
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if ( dep_id == 1 )
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{
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#if defined(DEP2)
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return( DEPENDENCY_SUPPORTED );
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#else
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return( DEPENDENCY_NOT_SUPPORTED );
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#endif
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}
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else
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if ( dep_id == 2 )
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{
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#if defined(DEP1)
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return( DEPENDENCY_SUPPORTED );
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#else
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return( DEPENDENCY_NOT_SUPPORTED );
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#endif
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}
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else
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'''
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self.assertEqual(dep_check_code, expect_dep_check_code)
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self.assertEqual(len(unique_deps), 3)
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self.assertEqual(s.getvalue(), 'depends_on:0:1:2\n')
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def test_dep_id_repeat(self):
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"""
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:return:
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"""
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s = StringIOWrapper('test_suite_ut.data', '')
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unique_deps = []
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dep_check_code = ''
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dep_check_code += write_deps(s, ['DEP3', 'DEP2'], unique_deps)
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dep_check_code += write_deps(s, ['DEP2', 'DEP1'], unique_deps)
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dep_check_code += write_deps(s, ['DEP1', 'DEP3'], unique_deps)
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expect_dep_check_code = '''
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if ( dep_id == 0 )
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{
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#if defined(DEP3)
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return( DEPENDENCY_SUPPORTED );
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#else
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return( DEPENDENCY_NOT_SUPPORTED );
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#endif
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}
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else
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if ( dep_id == 1 )
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{
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#if defined(DEP2)
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return( DEPENDENCY_SUPPORTED );
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#else
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return( DEPENDENCY_NOT_SUPPORTED );
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#endif
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}
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else
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if ( dep_id == 2 )
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{
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#if defined(DEP1)
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return( DEPENDENCY_SUPPORTED );
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#else
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return( DEPENDENCY_NOT_SUPPORTED );
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#endif
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}
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else
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'''
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self.assertEqual(dep_check_code, expect_dep_check_code)
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self.assertEqual(len(unique_deps), 3)
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self.assertEqual(s.getvalue(), 'depends_on:0:1\ndepends_on:1:2\ndepends_on:2:0\n')
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class WriteParams(TestCase):
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"""
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Test Suite for testing write_parameters().
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"""
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def test_no_params(self):
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"""
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Test with empty test_args
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:return:
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"""
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s = StringIOWrapper('test_suite_ut.data', '')
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unique_expressions = []
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expression_code = write_parameters(s, [], [], unique_expressions)
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self.assertEqual(len(unique_expressions), 0)
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self.assertEqual(expression_code, '')
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self.assertEqual(s.getvalue(), '\n')
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def test_no_exp_param(self):
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"""
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Test when there is no macro or expression in the params.
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:return:
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"""
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s = StringIOWrapper('test_suite_ut.data', '')
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unique_expressions = []
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expression_code = write_parameters(s, ['"Yahoo"', '"abcdef00"', '0'], ['char*', 'hex', 'int'],
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unique_expressions)
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self.assertEqual(len(unique_expressions), 0)
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self.assertEqual(expression_code, '')
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self.assertEqual(s.getvalue(), ':char*:"Yahoo":hex:"abcdef00":int:0\n')
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def test_hex_format_int_param(self):
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"""
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Test int parameter in hex format.
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:return:
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"""
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s = StringIOWrapper('test_suite_ut.data', '')
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unique_expressions = []
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expression_code = write_parameters(s, ['"Yahoo"', '"abcdef00"', '0xAA'], ['char*', 'hex', 'int'],
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unique_expressions)
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self.assertEqual(len(unique_expressions), 0)
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self.assertEqual(expression_code, '')
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self.assertEqual(s.getvalue(), ':char*:"Yahoo":hex:"abcdef00":int:0xAA\n')
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def test_with_exp_param(self):
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"""
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Test when there is macro or expression in the params.
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:return:
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"""
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s = StringIOWrapper('test_suite_ut.data', '')
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unique_expressions = []
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expression_code = write_parameters(s, ['"Yahoo"', '"abcdef00"', '0', 'MACRO1', 'MACRO2', 'MACRO3'],
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['char*', 'hex', 'int', 'int', 'int', 'int'],
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unique_expressions)
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self.assertEqual(len(unique_expressions), 3)
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self.assertEqual(unique_expressions, ['MACRO1', 'MACRO2', 'MACRO3'])
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expected_expression_code = '''
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if ( exp_id == 0 )
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{
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*out_value = MACRO1;
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}
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else
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if ( exp_id == 1 )
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{
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*out_value = MACRO2;
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}
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else
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if ( exp_id == 2 )
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{
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*out_value = MACRO3;
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}
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else
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'''
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self.assertEqual(expression_code, expected_expression_code)
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self.assertEqual(s.getvalue(), ':char*:"Yahoo":hex:"abcdef00":int:0:exp:0:exp:1:exp:2\n')
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def test_with_repeate_calls(self):
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"""
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Test when write_parameter() is called with same macro or expression.
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:return:
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"""
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s = StringIOWrapper('test_suite_ut.data', '')
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unique_expressions = []
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expression_code = ''
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expression_code += write_parameters(s, ['"Yahoo"', 'MACRO1', 'MACRO2'], ['char*', 'int', 'int'],
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unique_expressions)
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expression_code += write_parameters(s, ['"abcdef00"', 'MACRO2', 'MACRO3'], ['hex', 'int', 'int'],
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unique_expressions)
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expression_code += write_parameters(s, ['0', 'MACRO3', 'MACRO1'], ['int', 'int', 'int'],
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unique_expressions)
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self.assertEqual(len(unique_expressions), 3)
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self.assertEqual(unique_expressions, ['MACRO1', 'MACRO2', 'MACRO3'])
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expected_expression_code = '''
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if ( exp_id == 0 )
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{
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*out_value = MACRO1;
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}
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else
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if ( exp_id == 1 )
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{
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*out_value = MACRO2;
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}
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else
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if ( exp_id == 2 )
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{
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*out_value = MACRO3;
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}
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else
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'''
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self.assertEqual(expression_code, expected_expression_code)
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expected_data_file = ''':char*:"Yahoo":exp:0:exp:1
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:hex:"abcdef00":exp:1:exp:2
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:int:0:exp:2:exp:0
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'''
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self.assertEqual(s.getvalue(), expected_data_file)
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class GenTestSuiteDepsChecks(TestCase):
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"""
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"""
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def test_empty_suite_deps(self):
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"""
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Test with empty suite_deps list.
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:return:
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"""
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dep_check_code, expression_code = gen_suite_deps_checks([], 'DEP_CHECK_CODE', 'EXPRESSION_CODE')
|
||||
self.assertEqual(dep_check_code, 'DEP_CHECK_CODE')
|
||||
self.assertEqual(expression_code, 'EXPRESSION_CODE')
|
||||
|
||||
def test_suite_deps(self):
|
||||
"""
|
||||
Test with suite_deps list.
|
||||
|
||||
:return:
|
||||
"""
|
||||
dep_check_code, expression_code = gen_suite_deps_checks(['SUITE_DEP'], 'DEP_CHECK_CODE', 'EXPRESSION_CODE')
|
||||
exprectd_dep_check_code = '''
|
||||
#if defined(SUITE_DEP)
|
||||
DEP_CHECK_CODE
|
||||
#else
|
||||
(void) dep_id;
|
||||
#endif
|
||||
'''
|
||||
expected_expression_code = '''
|
||||
#if defined(SUITE_DEP)
|
||||
EXPRESSION_CODE
|
||||
#else
|
||||
(void) exp_id;
|
||||
(void) out_value;
|
||||
#endif
|
||||
'''
|
||||
self.assertEqual(dep_check_code, exprectd_dep_check_code)
|
||||
self.assertEqual(expression_code, expected_expression_code)
|
||||
|
||||
def test_no_dep_no_exp(self):
|
||||
"""
|
||||
Test when there are no dependency and expression code.
|
||||
:return:
|
||||
"""
|
||||
dep_check_code, expression_code = gen_suite_deps_checks([], '', '')
|
||||
self.assertEqual(dep_check_code, '(void) dep_id;\n')
|
||||
self.assertEqual(expression_code, '(void) exp_id;\n(void) out_value;\n')
|
||||
|
||||
|
||||
class GenFromTestData(TestCase):
|
||||
"""
|
||||
Test suite for gen_from_test_data()
|
||||
"""
|
||||
|
||||
pass
|
||||
@patch("generate_code.write_deps")
|
||||
@patch("generate_code.write_parameters")
|
||||
@patch("generate_code.gen_suite_deps_checks")
|
||||
def test_intermediate_data_file(self, gen_suite_deps_checks_mock, write_parameters_mock, write_deps_mock):
|
||||
"""
|
||||
Test that intermediate data file is written with expected data.
|
||||
:return:
|
||||
"""
|
||||
data = '''
|
||||
My test
|
||||
depends_on:DEP1
|
||||
func1:0
|
||||
'''
|
||||
data_f = StringIOWrapper('test_suite_ut.data', data)
|
||||
out_data_f = StringIOWrapper('test_suite_ut.datax', '')
|
||||
func_info = {'test_func1': (1, ('int',))}
|
||||
suite_deps = []
|
||||
write_parameters_mock.side_effect = write_parameters
|
||||
write_deps_mock.side_effect = write_deps
|
||||
gen_suite_deps_checks_mock.side_effect = gen_suite_deps_checks
|
||||
gen_from_test_data(data_f, out_data_f, func_info, suite_deps)
|
||||
write_deps_mock.assert_called_with(out_data_f, ['DEP1'], ['DEP1'])
|
||||
write_parameters_mock.assert_called_with(out_data_f, ['0'], ('int',), [])
|
||||
expected_dep_check_code = '''
|
||||
if ( dep_id == 0 )
|
||||
{
|
||||
#if defined(DEP1)
|
||||
return( DEPENDENCY_SUPPORTED );
|
||||
#else
|
||||
return( DEPENDENCY_NOT_SUPPORTED );
|
||||
#endif
|
||||
}
|
||||
else
|
||||
'''
|
||||
gen_suite_deps_checks_mock.assert_called_with(suite_deps, expected_dep_check_code, '')
|
||||
|
||||
def test_function_not_found(self):
|
||||
"""
|
||||
Test that AssertError is raised when function info in not found.
|
||||
:return:
|
||||
"""
|
||||
data = '''
|
||||
My test
|
||||
depends_on:DEP1
|
||||
func1:0
|
||||
'''
|
||||
data_f = StringIOWrapper('test_suite_ut.data', data)
|
||||
out_data_f = StringIOWrapper('test_suite_ut.datax', '')
|
||||
func_info = {'test_func2': (1, ('int',))}
|
||||
suite_deps = []
|
||||
self.assertRaises(AssertionError, gen_from_test_data, data_f, out_data_f, func_info, suite_deps)
|
||||
|
||||
def test_different_func_args(self):
|
||||
"""
|
||||
Test that AssertError is raised when no. of parameters and function args differ.
|
||||
:return:
|
||||
"""
|
||||
data = '''
|
||||
My test
|
||||
depends_on:DEP1
|
||||
func1:0
|
||||
'''
|
||||
data_f = StringIOWrapper('test_suite_ut.data', data)
|
||||
out_data_f = StringIOWrapper('test_suite_ut.datax', '')
|
||||
func_info = {'test_func2': (1, ('int','hex'))}
|
||||
suite_deps = []
|
||||
self.assertRaises(AssertionError, gen_from_test_data, data_f, out_data_f, func_info, suite_deps)
|
||||
|
||||
def test_output(self):
|
||||
"""
|
||||
Test that intermediate data file is written with expected data.
|
||||
:return:
|
||||
"""
|
||||
data = '''
|
||||
My test 1
|
||||
depends_on:DEP1
|
||||
func1:0:0xfa:MACRO1:MACRO2
|
||||
|
||||
My test 2
|
||||
depends_on:DEP1:DEP2
|
||||
func2:"yahoo":88:MACRO1
|
||||
'''
|
||||
data_f = StringIOWrapper('test_suite_ut.data', data)
|
||||
out_data_f = StringIOWrapper('test_suite_ut.datax', '')
|
||||
func_info = {'test_func1': (0, ('int', 'int', 'int', 'int')), 'test_func2': (1, ('char*', 'int', 'int'))}
|
||||
suite_deps = []
|
||||
dep_check_code, expression_code = gen_from_test_data(data_f, out_data_f, func_info, suite_deps)
|
||||
expected_dep_check_code = '''
|
||||
if ( dep_id == 0 )
|
||||
{
|
||||
#if defined(DEP1)
|
||||
return( DEPENDENCY_SUPPORTED );
|
||||
#else
|
||||
return( DEPENDENCY_NOT_SUPPORTED );
|
||||
#endif
|
||||
}
|
||||
else
|
||||
|
||||
if ( dep_id == 1 )
|
||||
{
|
||||
#if defined(DEP2)
|
||||
return( DEPENDENCY_SUPPORTED );
|
||||
#else
|
||||
return( DEPENDENCY_NOT_SUPPORTED );
|
||||
#endif
|
||||
}
|
||||
else
|
||||
'''
|
||||
expecrted_data = '''My test 1
|
||||
depends_on:0
|
||||
0:int:0:int:0xfa:exp:0:exp:1
|
||||
|
||||
My test 2
|
||||
depends_on:0:1
|
||||
1:char*:"yahoo":int:88:exp:0
|
||||
|
||||
'''
|
||||
expected_expression_code = '''
|
||||
if ( exp_id == 0 )
|
||||
{
|
||||
*out_value = MACRO1;
|
||||
}
|
||||
else
|
||||
|
||||
if ( exp_id == 1 )
|
||||
{
|
||||
*out_value = MACRO2;
|
||||
}
|
||||
else
|
||||
'''
|
||||
self.assertEqual(dep_check_code, expected_dep_check_code)
|
||||
self.assertEqual(out_data_f.getvalue(), expecrted_data)
|
||||
self.assertEqual(expression_code, expected_expression_code)
|
||||
|
||||
|
||||
if __name__=='__main__':
|
||||
|
||||
Loading…
Reference in New Issue
Block a user