import os
import subprocess

# Utilities

def check_call(cmd):
  subprocess.check_call(cmd.split(' '))

# Set up

open('hello_world.cpp', 'w').write('int main() {}')

# Tests

print('update')
check_call('./emsdk update-tags')

print('test latest')
assert 'fastcomp' in open(os.path.expanduser('~/.emscripten')).read()
assert 'upstream' not in open(os.path.expanduser('~/.emscripten')).read()

print('test latest-releases-upstream')
check_call('python2 ./emsdk install latest-upstream')
check_call('./emsdk activate latest-upstream')
check_call('upstream/emscripten/emcc hello_world.cpp')
assert open(os.path.expanduser('~/.emscripten')).read().count('LLVM_ROOT') == 1
assert 'upstream' in open(os.path.expanduser('~/.emscripten')).read()
assert 'fastcomp' not in open(os.path.expanduser('~/.emscripten')).read()

print('test tot-upstream')
check_call('./emsdk install tot-upstream')
check_call('./emsdk activate tot-upstream')
check_call('upstream/emscripten/emcc hello_world.cpp')

print('test tot-fastcomp')
check_call('./emsdk install tot-fastcomp')
check_call('./emsdk activate tot-fastcomp')
check_call('fastcomp/emscripten/emcc hello_world.cpp')

print('test specific release (old)')
check_call('./emsdk install sdk-1.38.31-64bit')
check_call('./emsdk activate tot-fastcomp')

print('test specific release (new, short name)')
check_call('./emsdk install 1.38.33')
check_call('./emsdk activate tot-fastcomp')
assert 'fastcomp' in open(os.path.expanduser('~/.emscripten')).read()
assert 'upstream' not in open(os.path.expanduser('~/.emscripten')).read()

print('test specific release (new, full name)')
check_call('./emsdk install sdk-1.38.33-upstream-64bit')
check_call('./emsdk activate sdk-1.38.33-upstream-64bit')

print('test specific release (new, full name)')
check_call('./emsdk install sdk-tag-1.38.33-64bit')
check_call('./emsdk activate sdk-tag-1.38.33-64bit')

print('test binaryen source build')
check_call('./emsdk install --build=Release binaryen-master-64bit')