test_snippet_helper.py
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	#!/bin/env python3
	# -- coding: utf-8 --

	from Slides import snippet_helper as sh


	def test_cpp_snippet_from_file():
	sh.Snippet.default_line_number = True
	snip = sh.Snippet('tests/snippet.cpp')
	snip.save('snippet2.cpp')
	f = open('snippet2.cpp')
	snip2 = f.read()
	f.close()
	if snip.get_content() != snip2:
	print('AAA ', snip.get_content())
	print('BBB ', snip2)
	raise RuntimeError('failed test')


	def test_cpp_snippet_format():
	sh.Snippet.default_line_number = True
	code = """
	#include <iostream>

	int main(int argc, char **argv){
	return 0;
	}
	"""
	code = code.replace(';\n', ';')
	snip = sh.Snippet(code, format_flag=True)
	snip.save('snippet2.cpp')
	f = open('snippet2.cpp')
	snip2 = f.read()
	f.close()
	assert snip.get_content() == snip2
	assert not snip.get_content() == code


	def test_cpp_snippet_compile_fail():
	sh.Snippet.default_line_number = True
	code = """
	#include <iostream>

	int main(int argc, char **argv){
	return 0
	}
	"""
	code = code.replace(';\n', ';')
	try:
	sh.Snippet(code, compile_flag=True)
	raise RuntimeError("compilation error not detected")
	except sh.Snippet.CompilationError as e:
	pass
	except Exception as e:
	raise RuntimeError('wrong exception:' + str(e))


	def test_cpp_snippet_compile():
	sh.Snippet.default_line_number = True
	code = """
	#include <iostream>

	int main(int argc, char **argv){
	return 0;
	}
	"""
	code = code.replace(';\n', ';')
	try:
	sh.Snippet(code, compile_flag=True)
	except Exception as e:
	raise RuntimeError('should compile: ' + str(e))