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import errno
import os
import sys
import textwrap
import unittest
import subprocess
from test import support
from test.support import os_helper
from test.support.script_helper import assert_python_ok
class TestTool(unittest.TestCase):
data = """
[["blorpie"],[ "whoops" ] , [
],\t"d-shtaeou",\r"d-nthiouh",
"i-vhbjkhnth", {"nifty":87}, {"morefield" :\tfalse,"field"
:"yes"} ]
"""
expect_without_sort_keys = textwrap.dedent("""\
[
[
"blorpie"
],
[
"whoops"
],
[],
"d-shtaeou",
"d-nthiouh",
"i-vhbjkhnth",
{
"nifty": 87
},
{
"field": "yes",
"morefield": false
}
]
""")
expect = textwrap.dedent("""\
[
[
"blorpie"
],
[
"whoops"
],
[],
"d-shtaeou",
"d-nthiouh",
"i-vhbjkhnth",
{
"nifty": 87
},
{
"morefield": false,
"field": "yes"
}
]
""")
jsonlines_raw = textwrap.dedent("""\
{"ingredients":["frog", "water", "chocolate", "glucose"]}
{"ingredients":["chocolate","steel bolts"]}
""")
jsonlines_expect = textwrap.dedent("""\
{
"ingredients": [
"frog",
"water",
"chocolate",
"glucose"
]
}
{
"ingredients": [
"chocolate",
"steel bolts"
]
}
""")
def test_stdin_stdout(self):
args = sys.executable, '-m', 'json.tool'
process = subprocess.run(args, input=self.data, capture_output=True, text=True, check=True)
self.assertEqual(process.stdout, self.expect)
self.assertEqual(process.stderr, '')
def _create_infile(self, data=None):
infile = os_helper.TESTFN
with open(infile, "w", encoding="utf-8") as fp:
self.addCleanup(os.remove, infile)
fp.write(data or self.data)
return infile
def test_infile_stdout(self):
infile = self._create_infile()
rc, out, err = assert_python_ok('-m', 'json.tool', infile)
self.assertEqual(rc, 0)
self.assertEqual(out.splitlines(), self.expect.encode().splitlines())
self.assertEqual(err, b'')
def test_non_ascii_infile(self):
data = '{"msg": "\u3053\u3093\u306b\u3061\u306f"}'
expect = textwrap.dedent('''\
{
"msg": "\\u3053\\u3093\\u306b\\u3061\\u306f"
}
''').encode()
infile = self._create_infile(data)
rc, out, err = assert_python_ok('-m', 'json.tool', infile)
self.assertEqual(rc, 0)
self.assertEqual(out.splitlines(), expect.splitlines())
self.assertEqual(err, b'')
def test_infile_outfile(self):
infile = self._create_infile()
outfile = os_helper.TESTFN + '.out'
rc, out, err = assert_python_ok('-m', 'json.tool', infile, outfile)
self.addCleanup(os.remove, outfile)
with open(outfile, "r", encoding="utf-8") as fp:
self.assertEqual(fp.read(), self.expect)
self.assertEqual(rc, 0)
self.assertEqual(out, b'')
self.assertEqual(err, b'')
def test_jsonlines(self):
args = sys.executable, '-m', 'json.tool', '--json-lines'
process = subprocess.run(args, input=self.jsonlines_raw, capture_output=True, text=True, check=True)
self.assertEqual(process.stdout, self.jsonlines_expect)
self.assertEqual(process.stderr, '')
def test_help_flag(self):
rc, out, err = assert_python_ok('-m', 'json.tool', '-h')
self.assertEqual(rc, 0)
self.assertTrue(out.startswith(b'usage: '))
self.assertEqual(err, b'')
def test_sort_keys_flag(self):
infile = self._create_infile()
rc, out, err = assert_python_ok('-m', 'json.tool', '--sort-keys', infile)
self.assertEqual(rc, 0)
self.assertEqual(out.splitlines(),
self.expect_without_sort_keys.encode().splitlines())
self.assertEqual(err, b'')
def test_indent(self):
input_ = '[1, 2]'
expect = textwrap.dedent('''\
[
1,
2
]
''')
args = sys.executable, '-m', 'json.tool', '--indent', '2'
process = subprocess.run(args, input=input_, capture_output=True, text=True, check=True)
self.assertEqual(process.stdout, expect)
self.assertEqual(process.stderr, '')
def test_no_indent(self):
input_ = '[1,\n2]'
expect = '[1, 2]\n'
args = sys.executable, '-m', 'json.tool', '--no-indent'
process = subprocess.run(args, input=input_, capture_output=True, text=True, check=True)
self.assertEqual(process.stdout, expect)
self.assertEqual(process.stderr, '')
def test_tab(self):
input_ = '[1, 2]'
expect = '[\n\t1,\n\t2\n]\n'
args = sys.executable, '-m', 'json.tool', '--tab'
process = subprocess.run(args, input=input_, capture_output=True, text=True, check=True)
self.assertEqual(process.stdout, expect)
self.assertEqual(process.stderr, '')
def test_compact(self):
input_ = '[ 1 ,\n 2]'
expect = '[1,2]\n'
args = sys.executable, '-m', 'json.tool', '--compact'
process = subprocess.run(args, input=input_, capture_output=True, text=True, check=True)
self.assertEqual(process.stdout, expect)
self.assertEqual(process.stderr, '')
def test_no_ensure_ascii_flag(self):
infile = self._create_infile('{"key":"💩"}')
outfile = os_helper.TESTFN + '.out'
self.addCleanup(os.remove, outfile)
assert_python_ok('-m', 'json.tool', '--no-ensure-ascii', infile, outfile)
with open(outfile, "rb") as f:
lines = f.read().splitlines()
# asserting utf-8 encoded output file
expected = [b'{', b' "key": "\xf0\x9f\x92\xa9"', b"}"]
self.assertEqual(lines, expected)
def test_ensure_ascii_default(self):
infile = self._create_infile('{"key":"💩"}')
outfile = os_helper.TESTFN + '.out'
self.addCleanup(os.remove, outfile)
assert_python_ok('-m', 'json.tool', infile, outfile)
with open(outfile, "rb") as f:
lines = f.read().splitlines()
# asserting an ascii encoded output file
expected = [b'{', rb' "key": "\ud83d\udca9"', b"}"]
self.assertEqual(lines, expected)
@unittest.skipIf(sys.platform =="win32", "The test is failed with ValueError on Windows")
def test_broken_pipe_error(self):
cmd = [sys.executable, '-m', 'json.tool']
proc = subprocess.Popen(cmd,
stdout=subprocess.PIPE,
stdin=subprocess.PIPE)
# bpo-39828: Closing before json.tool attempts to write into stdout.
proc.stdout.close()
proc.communicate(b'"{}"')
self.assertEqual(proc.returncode, errno.EPIPE)
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