def test_ClangPreprocess_small_cxx_program():
"""Test pre-processing a small C++ program."""
assert cxx.ClangPreprocess("""
#define FOO T
template<typename FOO>
FOO foobar(const T& a) {return a;}
int foo() { return foobar<int>(10); }
""") == """
def test_ClangPreprocess_missing_include():
"""Test that ClangPreprocessor error is raised on missing #include."""
with test.Raises(errors.ClangException) as e_info:
cxx.ClangPreprocess('#include "my-missing-file.h"')
assert "'my-missing-file.h' file not found" in str(e_info.value)
def test_ClangPreprocess_empty_input():
"""Test that ClangPreprocess accepts an empty input."""
assert cxx.ClangPreprocess("") == "\n"