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from io import StringIO
import pytest
from snakeoil.bash import (
BashParseError,
iter_read_bash,
read_bash,
read_bash_dict,
read_dict,
)
class TestBashCommentStripping:
def test_iter_read_bash(self):
output = iter_read_bash(
StringIO(
"\n" "# hi I am a comment\n" "I am not \n" " asdf # inline comment\n"
)
)
assert list(output) == ["I am not", "asdf"]
output = iter_read_bash(
StringIO("inline # comment "), allow_inline_comments=False
)
assert list(output) == ["inline # comment"]
def test_iter_read_bash_line_cont(self):
output = iter_read_bash(
StringIO(
"\n"
"# hi I am a comment\\\n"
"I am not \\\n"
"a comment \n"
" asdf # inline comment\\\n"
),
allow_line_cont=True,
)
assert list(output) == ["I am not a comment", "asdf"]
# continuation into inline comment
output = iter_read_bash(
StringIO(
"\n"
"# hi I am a comment\n"
"I am \\\n"
"not a \\\n"
"comment # inline comment\n"
),
allow_line_cont=True,
)
assert list(output) == ["I am not a comment"]
# ends with continuation
output = iter_read_bash(
StringIO(
"\n"
"# hi I am a comment\n"
"I am \\\n"
"\\\n"
"not a \\\n"
"comment\\\n"
"\\\n"
),
allow_line_cont=True,
)
assert list(output) == ["I am not a comment"]
# embedded comment prefix via continued lines
output = iter_read_bash(
StringIO(
"\\\n"
"# comment\\\n"
" not a comment\n"
"\\\n"
" # inner comment\n"
"also not\\\n"
"#\\\n"
"a comment\n"
),
allow_line_cont=True,
)
assert list(output) == ["not a comment", "also not#a comment"]
# Line continuations have to end with \<newline> without any backslash
# before the pattern.
output = iter_read_bash(
StringIO("I am \\ \n" "not a comment"), allow_line_cont=True
)
assert list(output) == ["I am \\", "not a comment"]
output = iter_read_bash(
StringIO("\\\n" "I am \\\\\n" "not a comment"), allow_line_cont=True
)
assert list(output) == ["I am \\\\", "not a comment"]
def test_read_bash(self):
output = read_bash(StringIO("\n" "# hi I am a comment\n" "I am not\n"))
assert output == ["I am not"]
class TestReadDictConfig:
def test_read_dict(self):
bash_dict = read_dict(
StringIO(
"\n" "# hi I am a comment\n" "foo1=bar\n" 'foo2="bar"\n' "foo3='bar\"\n"
)
)
assert bash_dict == {
"foo1": "bar",
"foo2": "bar",
"foo3": "'bar\"",
}
assert read_dict(["foo=bar"], source_isiter=True) == {"foo": "bar"}
with pytest.raises(BashParseError):
read_dict(["invalid"], source_isiter=True)
bash_dict = read_dict(
StringIO("foo bar\nfoo2 bar\nfoo3\tbar\n"), splitter=None
)
assert bash_dict == dict.fromkeys(("foo", "foo2", "foo3"), "bar")
bash_dict = read_dict(["foo = blah", "foo2= blah ", "foo3=blah"], strip=True)
assert bash_dict == dict.fromkeys(("foo", "foo2", "foo3"), "blah")
class TestReadBashDict:
@pytest.fixture(autouse=True)
def _setup(self, tmp_path):
self.valid_file = tmp_path / "valid"
self.valid_file.write_text(
"# hi I am a comment\n"
"foo1=bar\n"
"foo2='bar'\n"
'foo3="bar"\n'
"foo4=-/:j4\n"
"foo5=\n"
'export foo6="bar"\n'
)
self.sourcing_file = tmp_path / "sourcing"
self.sourcing_file.write_text(f'source "{self.valid_file}"\n')
self.sourcing_file2 = tmp_path / "sourcing2"
self.sourcing_file2.write_text(f'source "{self.valid_file}"\n')
self.advanced_file = tmp_path / "advanced"
self.advanced_file.write_text(
"one1=1\n" "one_=$one1\n" "two1=2\n" "two_=${two1}\n"
)
self.env_file = tmp_path / "env"
self.env_file.write_text("imported=${external}\n")
self.escaped_file = tmp_path / "escaped"
self.escaped_file.write_text(
"end=bye\n" 'quoteddollar="\\${dollar}"\n' 'quotedexpansion="\\${${end}}"\n'
)
self.unclosed_file = tmp_path / "unclosed"
self.unclosed_file.write_text('foo="bar')
def invoke_and_close(self, handle, *args, **kwds):
try:
return read_bash_dict(handle, *args, **kwds)
finally:
if hasattr(handle, "close"):
handle.close()
def test_read_bash_dict(self):
# TODO this is not even close to complete
bash_dict = self.invoke_and_close(str(self.valid_file))
d = {
"foo1": "bar",
"foo2": "bar",
"foo3": "bar",
"foo4": "-/:j4",
"foo5": "",
"foo6": "bar",
}
assert bash_dict == d
with pytest.raises(BashParseError):
self.invoke_and_close(StringIO("a=b\ny='"))
def test_var_read(self):
assert self.invoke_and_close(StringIO("x=y@a\n")) == {"x": "y@a"}
assert self.invoke_and_close(StringIO("x=y~a\n")) == {"x": "y~a"}
assert self.invoke_and_close(StringIO("x=y^a\n")) == {"x": "y^a"}
assert self.invoke_and_close(StringIO('x="\nasdf\nfdsa"')) == {
"x": "\nasdf\nfdsa"
}
def test_empty_assign(self):
self.valid_file.write_text("foo=\ndar=blah\n")
assert self.invoke_and_close(str(self.valid_file)) == {"foo": "", "dar": "blah"}
self.valid_file.write_text("foo=\ndar=\n")
assert self.invoke_and_close(str(self.valid_file)) == {"foo": "", "dar": ""}
self.valid_file.write_text("foo=blah\ndar=\n")
assert self.invoke_and_close(str(self.valid_file)) == {"foo": "blah", "dar": ""}
def test_quoting(self):
assert self.invoke_and_close(StringIO("x='y \\\na'")) == {"x": "y \\\na"}
assert self.invoke_and_close(StringIO("x='y'a\n")) == {"x": "ya"}
assert self.invoke_and_close(StringIO('x="y \\\nasdf"')) == {"x": "y asdf"}
def test_eof_without_newline(self):
assert self.invoke_and_close(StringIO("x=y")) == {"x": "y"}
assert self.invoke_and_close(StringIO("x='y'a")) == {"x": "ya"}
def test_sourcing(self):
output = self.invoke_and_close(
str(self.sourcing_file), sourcing_command="source"
)
expected = {
"foo1": "bar",
"foo2": "bar",
"foo3": "bar",
"foo4": "-/:j4",
"foo5": "",
"foo6": "bar",
}
assert output == expected
output = self.invoke_and_close(
str(self.sourcing_file2), sourcing_command="source"
)
expected = {
"foo1": "bar",
"foo2": "bar",
"foo3": "bar",
"foo4": "-/:j4",
"foo5": "",
"foo6": "bar",
}
assert output == expected
def test_read_advanced(self):
output = self.invoke_and_close(str(self.advanced_file))
expected = {
"one1": "1",
"one_": "1",
"two1": "2",
"two_": "2",
}
assert output == expected
def test_env(self):
assert self.invoke_and_close(str(self.env_file)) == {"imported": ""}
env = {"external": "imported foo"}
env_backup = env.copy()
assert self.invoke_and_close(str(self.env_file), env) == {
"imported": "imported foo"
}
assert env_backup == env
def test_escaping(self):
output = self.invoke_and_close(str(self.escaped_file))
expected = {
"end": "bye",
"quoteddollar": "${dollar}",
"quotedexpansion": "${bye}",
}
assert output == expected
def test_unclosed(self):
with pytest.raises(BashParseError):
self.invoke_and_close(str(self.unclosed_file))
def test_wordchards(self):
assert self.invoke_and_close(StringIO("x=-*")) == {"x": "-*"}
|
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