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import os
import shutil
import subprocess
import time
import unittest
from typing import List
from django_sass import find_static_paths, find_static_scss
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
SCSS_CONTAINS = [
"/* Tests: app1/scss/_include.scss */",
"/* Tests: app2/scss/_samedir.scss */",
"/* Tests: app2/scss/subdir/_subdir.scss */",
"/* Tests: app2/scss/test.scss */",
]
class TestDjangoSass(unittest.TestCase):
def setUp(self):
self.outdir = os.path.join(THIS_DIR, "out")
def tearDown(self):
# Clean up output files
shutil.rmtree(self.outdir, ignore_errors=True)
def assert_output(
self,
inpath: str,
outpath: str,
real_outpath: str,
contains: List[str],
args: List[str] = None,
):
# Command to run
args = args or []
cmd = ["python", "manage.py", "sass", *args, inpath, outpath]
# Run the management command on testproject.
proc = subprocess.run(cmd, cwd=THIS_DIR)
# Verify the process exited cleanly.
self.assertEqual(proc.returncode, 0)
# Verify that the output file exists.
# self.assertTrue(os.path.isfile(real_outpath))
# Verify that the file contains expected output from all sass files.
with open(real_outpath, encoding="utf8") as f:
contents = f.read()
for compiled_data in contains:
self.assertTrue(compiled_data in contents)
def test_find_static_paths(self):
paths = find_static_paths()
# Assert that it found both of our apps' static dirs.
self.assertTrue(os.path.join(THIS_DIR, "app1", "static") in paths)
self.assertTrue(os.path.join(THIS_DIR, "app2", "static") in paths)
def test_find_static_sass(self):
files = find_static_scss()
# Assert that it found all of our scss files.
self.assertTrue(
os.path.join(
THIS_DIR, "app1", "static", "app1", "scss", "_include.scss"
)
in files
)
self.assertTrue(
os.path.join(
THIS_DIR, "app2", "static", "app2", "scss", "_samedir.scss"
)
in files
)
self.assertTrue(
os.path.join(
THIS_DIR, "app2", "static", "app2", "scss", "test.scss"
)
in files
)
self.assertTrue(
os.path.join(
THIS_DIR,
"app2",
"static",
"app2",
"scss",
"subdir",
"_subdir.scss",
)
in files
)
self.assertTrue(
os.path.join(
THIS_DIR, "app3", "static", "app3", "sass", "indent_test.sass"
)
in files
)
def test_cli(self):
# Input and output paths relative to django static dirs.
inpath = os.path.join("app2", "static", "app2", "scss", "test.scss")
outpath = os.path.join(self.outdir, "test_file.css")
self.assert_output(
inpath=inpath,
outpath=outpath,
real_outpath=outpath,
contains=SCSS_CONTAINS,
)
def test_cli_dir(self):
# Input and output paths relative to django static dirs.
inpath = os.path.join("app2", "static", "app2", "scss")
# Expected output path on filesystem.
real_outpath = os.path.join(self.outdir, "test.css")
self.assert_output(
inpath=inpath,
outpath=self.outdir,
real_outpath=real_outpath,
contains=SCSS_CONTAINS,
)
def test_cli_infile_outdir(self):
# Input is a file; output is non-existant path (without .css extension).
inpath = os.path.join("app2", "static", "app2", "scss", "test.scss")
outpath = os.path.join(self.outdir, "does-not-exist")
# Expected output path on filesystem.
real_outpath = os.path.join(outpath, "test.css")
self.assert_output(
inpath=inpath,
outpath=outpath,
real_outpath=real_outpath,
contains=SCSS_CONTAINS,
)
def test_sass_compiles(self):
# Input and output paths relative to django static dirs.
inpath = os.path.join("app3", "static", "app3", "sass")
# Expected output path on filesystem.
real_outpath = os.path.join(self.outdir, "indent_test.css")
self.assert_output(
inpath=inpath,
outpath=self.outdir,
real_outpath=real_outpath,
contains=["/* Tests: app3/sass/indent_test.sass */"],
)
def test_cli_srcmap(self):
# Input and output paths relative to django static dirs.
inpath = os.path.join("app2", "static", "app2", "scss", "test.scss")
outpath = os.path.join(self.outdir, "test.css")
self.assert_output(
inpath=inpath,
outpath=outpath,
real_outpath=outpath,
contains=SCSS_CONTAINS,
args=["-g"],
)
self.assertTrue(
os.path.isfile(os.path.join(self.outdir, "test.css.map"))
)
@unittest.skip("Test needs fixed...")
def test_cli_watch(self):
# Input and output paths relative to django static dirs.
inpath = os.path.join("app2", "static", "app2", "scss", "test.scss")
outpath = os.path.join(self.outdir, "test.css")
# Command to run
cmd = ["python", "manage.py", "sass", "--watch", inpath, outpath]
# Run the management command on testproject.
proc = subprocess.Popen(cmd, cwd=THIS_DIR)
time.sleep(0.5)
# TODO: This test is not working. Do not know how to intentionally send
# a KeyboardInterrupt to the subprocess without having unittest/pytest
# immediately die when it sees the interrupt.
try:
proc.send_signal(subprocess.signal.CTRL_C_EVENT)
except KeyboardInterrupt:
# We actually want the keyboard interrupt.
pass
returncode = proc.wait()
# Verify the process exited cleanly.
self.assertEqual(returncode, 0)
# Assert output is correct.
self.assert_output(outpath)
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