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Copy pathtestNestedStructures.py
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486 lines (432 loc) · 12.7 KB
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import unittest
from .testHelpers import get_cpp_function_list_with_extnesion, \
get_python_function_list_with_extnesion
from lizard_ext.lizardns import LizardExtension as NestedStructure
def process_cpp(source):
return get_cpp_function_list_with_extnesion(source, NestedStructure())
def process_python(source):
return get_python_function_list_with_extnesion(source, NestedStructure())
class TestCppNestedStructures(unittest.TestCase):
def test_no_structures(self):
result = process_cpp("int fun(){}")
self.assertEqual(0, result[0].max_nested_structures)
def test_if_structure(self):
result = process_cpp("int fun(){if(a){xx;}}")
self.assertEqual(1, result[0].max_nested_structures)
def test_ternary_operator(self):
"""The ternary operator is not a structure."""
result = process_cpp("int fun(){return (a)?b:c;}")
self.assertEqual(0, result[0].max_nested_structures)
def test_forever_loop(self):
result = process_cpp("int fun(){for(;;){dosomething();}}")
self.assertEqual(1, result[0].max_nested_structures)
def test_terminator_in_parentheses(self):
result = process_cpp("int fun(){for(int a;;){ if (a) return b;}}")
self.assertEqual(2, result[0].max_nested_structures)
def test_and_condition_in_if_structure(self):
result = process_cpp("int fun(){if(a&&b){xx;}}")
self.assertEqual(1, result[0].max_nested_structures)
def test_else_if(self):
result = process_cpp("""
x c() {
if (a && b)
baz();
else if (c)
foo();
}
""")
self.assertEqual(1, result[0].max_nested_structures)
def test_non_r_value_ref_in_body(self):
result = process_cpp("""
x c() {
if (a && b) {
baz();
} else {
foo();
}
}
x a() {
c = a && b;
}
""")
self.assertEqual(1, result[0].max_nested_structures)
self.assertEqual(0, result[1].max_nested_structures)
def test_nested_if_structures(self):
result = process_cpp("""
x c() {
if (a && b) {
if(a != 0) {
a = b;
}
}
}
x a() {
if (a && b)
if (a != 0)
a = b;
}
""")
self.assertEqual(2, result[0].max_nested_structures)
self.assertEqual(2, result[1].max_nested_structures)
def test_nested_loop_mixed_brackets(self):
result = process_cpp("""
x c() {
if (a && b) {
if (a != 0)
a = b;
}
}
x a() {
if (a && b)
if (a != 0) {
a = b;
}
}
""")
self.assertEqual(2, result[0].max_nested_structures)
self.assertEqual(2, result[1].max_nested_structures)
def test_equal_metric_structures(self):
result = process_cpp("""
x c() {
if (a && b) {
if(a != 0){
a = b;
} else b = a;
}
if (a && b){
if(a != 0)
a = b;
else
b = a;
}
}
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_while(self):
result = process_cpp("""
x c() {
while (a && b) {
if(a != 0){
a = b;
}
while (s) continue;
}
}
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_do(self):
result = process_cpp("""
x c() {
do {
if(a != 0){
a = b;
} else {
b = a;
}
} while (a && b);
}
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_try_catch(self):
result = process_cpp("""
x c() {
try {
if (a != 0) {
foo();
} else {
bar();
}
} catch (auto& err) {}
}
x a() {
try {
foo();
} catch (auto& err) {
if (a != 0) {
bar();
} else {
baz();
}
}
}
""")
self.assertEqual(2, result[0].max_nested_structures)
self.assertEqual(2, result[1].max_nested_structures)
def test_braceless_nested_if_try_structures(self):
result = process_cpp("""
x c() {
if (a)
try {
throw 42;
} catch(...) {
if (b) return 42;
}
}
""")
self.assertEqual(3, result[0].max_nested_structures)
def test_braceless_nested_for_try_structures(self):
result = process_cpp("""
x c() {
for (;;)
try {
throw 42;
} catch(...) {
if (b) return 42;
}
}
""")
self.assertEqual(3, result[0].max_nested_structures)
def test_switch_case(self):
"""Switch-Case is one control structure."""
result = process_cpp("""
x c() {
switch (a) {
case 1:
if (b && c) break;
case 0:
default:
return;
}
}
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_scope(self):
result = process_cpp("""
x c() {
{{{{{{for (a : c) {
{{{{if(a != 0) {{{{
a = b;
}}}}}}}}
}}}}}}}
}
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_gotcha_if_else(self):
"""The last 'else' is associated with the innermost 'if'."""
result = process_cpp("""
x c() {
if (a)
if (b)
call();
else // Deceiving indentation!
for (auto c : d) // #3 control structure is here!
call(c);
}
""")
self.assertEqual(3, result[0].max_nested_structures)
def test_non_structure_braces(self):
"""Extra braces for initializer lists may confuse the nesting level."""
result = process_cpp("""
x c() {
if (a) return {{}}; // Initializer list with a braceless structure.
if (b)
if (c)
if (d) return 42;
}
""")
self.assertEqual(3, result[0].max_nested_structures)
def test_braceless_consecutive_if_structures(self):
"""Braceless structures one after another."""
result = process_cpp("""
x c() {
if (a)
if (b)
foobar();
if (c)
if (d)
baz();
}
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_braceless_consecutive_for_if_structures(self):
"""Braceless structures one after another."""
result = process_cpp("""
x c() {
for (;;)
for (;;)
foobar();
if (c)
if (d)
baz();
}
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_braceless_consecutive_if_structures_with_return(self):
"""Braceless structures one after another."""
result = process_cpp("""
x c() {
if (a)
if (b)
return true;
if (c)
if (d)
return false;
}
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_braceless_nested_if_else_structures(self):
result = process_cpp("""
x c() {
if (a)
if (b) {
return b;
} else {
if (b) return 42;
}
}
""")
self.assertEqual(3, result[0].max_nested_structures)
def test_braceless_nested_if_else_if_structures(self):
result = process_cpp("""
x c() {
if (a)
if (b) {
return b;
} else if (c) {
if (b) return 42;
}
}
""")
self.assertEqual(3, result[0].max_nested_structures)
@unittest.skip("Unspecified. Not Implemented. Convoluted.")
def test_struct_inside_declaration(self):
"""Extra complexity class/struct should be ignored."""
result = process_cpp("""
x c() {
for (struct {int s; int foo() { while(c) return s; }} a{42};;) break;
}
""")
self.assertEqual(1, result[0].max_nested_structures)
@unittest.skip("Unspecified. Not Implemented. Convoluted.")
def test_struct_inside_definition(self):
"""Extra complexity class/struct should be ignored."""
result = process_cpp("""
x c() {
for (;;) {
struct {int s; int foo() { while(c) return s; }} a{42};
}
}
""")
self.assertEqual(1, result[0].max_nested_structures)
class TestPythonNestedStructures(unittest.TestCase):
def test_no_structures(self):
result = process_python("def fun():\n pass")
self.assertEqual(0, result[0].max_nested_structures)
def test_if_structure(self):
result = process_python("def fun():\n if a:\n return")
self.assertEqual(1, result[0].max_nested_structures)
def test_for_structure(self):
result = process_python("def fun():\n for a in b:\n foo()")
self.assertEqual(1, result[0].max_nested_structures)
def test_condition_in_if_structure(self):
result = process_python("def fun():\n if a and b:\n return")
self.assertEqual(1, result[0].max_nested_structures)
def test_elif(self):
result = process_python("""
def c():
if a:
baz()
elif c:
foo()
""")
self.assertEqual(1, result[0].max_nested_structures)
def test_nested_if_structures(self):
result = process_python("""
def c():
if a:
if b:
baz()
else:
foo()
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_equal_metric_structures(self):
result = process_python("""
def c():
if a:
if b:
baz()
else:
foo()
for a in b:
if c:
bar()
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_while(self):
result = process_python("""
def c():
while a:
baz()
""")
self.assertEqual(1, result[0].max_nested_structures)
def test_try_catch(self):
result = process_python("""
def c():
try:
f.open()
catch Exception as err:
print(err)
finally:
f.close()
""")
self.assertEqual(1, result[0].max_nested_structures)
def test_two_functions(self):
result = process_python("""
def c():
try:
if a:
foo()
catch Exception as err:
print(err)
def d():
for a in b:
for x in y:
if i:
return j
""")
self.assertEqual(2, result[0].max_nested_structures)
self.assertEqual(3, result[1].max_nested_structures)
def test_nested_functions(self):
result = process_python("""
def c():
def d():
for a in b:
for x in y:
if i:
return j
try:
if a:
foo()
catch Exception as err:
print(err)
""")
self.assertEqual(3, result[0].max_nested_structures)
self.assertEqual(2, result[1].max_nested_structures)
def test_with_structure(self):
result = process_python("""
def c():
with open(f) as input_file:
foo(f)
""")
self.assertEqual(1, result[0].max_nested_structures)
def test_for_else(self):
result = process_python("""
def c():
for i in range(10):
break
else:
for j in range(i):
print(j)
""")
self.assertEqual(2, result[0].max_nested_structures)
def test_while_else(self):
result = process_python("""
def c(i):
while i < 10:
break
else:
for j in range(i):
print(j)
""")
self.assertEqual(2, result[0].max_nested_structures)
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