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# Copyright (C) 2014 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import collections
import enum
import sys
class Logger:
class Level(enum.IntEnum):
NO_OUTPUT, ERROR, INFO = range(3)
class Color(enum.Enum):
DEFAULT, BLUE, GRAY, PURPLE, RED, GREEN = range(6)
@staticmethod
def terminal_code(color, out=sys.stdout):
if not out.isatty():
return ""
elif color == Logger.Color.BLUE:
return "\033[94m"
elif color == Logger.Color.GRAY:
return "\033[37m"
elif color == Logger.Color.PURPLE:
return "\033[95m"
elif color == Logger.Color.RED:
return "\033[91m"
elif color == Logger.Color.GREEN:
return "\033[32m"
else:
return "\033[0m"
Verbosity = Level.INFO
@staticmethod
def log(content, level=Level.INFO, color=Color.DEFAULT, new_line=True, out=sys.stdout):
if level <= Logger.Verbosity:
content = "{}{}{}".format(Logger.Color.terminal_code(color, out), content,
Logger.Color.terminal_code(Logger.Color.DEFAULT, out))
if new_line:
print(content, file=out)
else:
print(content, end="", file=out)
out.flush()
@staticmethod
def fail(msg, file=None, line=-1, line_text=None, variables=None):
Logger.log("error: ", Logger.Level.ERROR, color=Logger.Color.RED, new_line=False,
out=sys.stderr)
Logger.log(msg, Logger.Level.ERROR, out=sys.stderr)
if line_text:
loc = ""
if file:
loc += file + ":"
if line > 0:
loc += str(line) + ":"
if loc:
loc += " "
Logger.log(loc, Logger.Level.ERROR, color=Logger.Color.GRAY, new_line=False,
out=sys.stderr)
Logger.log(line_text, Logger.Level.ERROR, out=sys.stderr)
if variables:
longest_name = max(len(var) for var in variables)
for var in collections.OrderedDict(sorted(variables.items())):
padding = " " * (longest_name - len(var))
Logger.log(var, Logger.Level.ERROR, color=Logger.Color.GREEN, new_line=False,
out=sys.stderr)
Logger.log(padding, Logger.Level.ERROR, new_line=False, out=sys.stderr)
Logger.log(" = ", Logger.Level.ERROR, new_line=False, out=sys.stderr)
Logger.log(variables[var], Logger.Level.ERROR, out=sys.stderr)
sys.exit(1)
@staticmethod
def start_test(name):
Logger.log("TEST ", color=Logger.Color.PURPLE, new_line=False)
Logger.log(name + "... ", new_line=False)
@staticmethod
def test_passed():
Logger.log("PASS", color=Logger.Color.BLUE)
@staticmethod
def test_failed(msg, statement, variables):
Logger.log("FAIL", color=Logger.Color.RED)
Logger.fail(msg, statement.filename, statement.line_no, statement.original_text, variables)
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