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                # -*- coding: utf-8 -*-  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                # pylint: disable=redefined-outer-name,unused-variable,expression-not-assigned  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                from __future__ import unicode_literals  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                import os  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                import sys  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                import logging  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                import pytest  | 
            
                            
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                import scripttest  | 
            
                            
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                from expecter import expect  | 
            
                            
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                ROOT = os.path.abspath(os.path.dirname(__file__))  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                FILES = os.path.join(ROOT, "files")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                BIN = os.path.join(FILES, "bin")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                SAMPLE_OUTPUT = """  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                Checking for Valid Program...  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                $ working --version  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                1.2.3  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                √ MATCHED: 1.2.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                Checking for Invalid Program...  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                $ working --version  | 
            
            
                                                                        
                            
            
                                    
            
            
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                1.2.3  | 
            
            
                                                                        
                            
            
                                    
            
            
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                × EXPECTED: 4.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                Checking for Broken Program...  | 
            
            
                                                                        
                            
            
                                    
            
            
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                $ broken --version  | 
            
            
                                                                        
                            
            
                                    
            
            
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                An error occurred.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                × EXPECTED: 1.2.3  | 
            
            
                                                                        
                            
            
                                    
            
            
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                Checking for Missing Program...  | 
            
            
                                                                        
                            
            
                                    
            
            
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                $ missing --version  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                sh: command not found: missing  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                × EXPECTED: 1.2.3  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                Results: √ × × ×  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                """  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                log = logging.getLogger(__name__)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                @pytest.fixture  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                def env(tmpdir):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    path = str(tmpdir.join("test")) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    env = scripttest.TestFileEnvironment(path)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    return env  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                @pytest.fixture  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                def env_with_bin(env):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    env.environ['PATH'] = BIN  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    log.debug("ENV: %s", env.environ) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    return env  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                def cli(env, *args):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    prog = os.path.join(os.path.dirname(sys.executable), "verchew")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    cmd = env.run(prog, *args, expect_error=True)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    return cmd  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                def describe_cli():  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def it_displays_help_information(env):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        cmd = cli(env, '--help')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        expect(cmd.returncode) == 0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        expect(cmd.stdout).contains("usage: verchew") | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def it_displays_version_information(env):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        cmd = cli(env, '--version')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        expect(cmd.returncode) == 0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        expect(cmd.stdout or cmd.stderr).contains("verchew v0.") | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    85
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                    def it_displays_results_when_run(env_with_bin):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        cmd = cli(env_with_bin, '--root', FILES)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        expect(cmd.returncode) == 1  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        expect(cmd.stderr) == ""  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                        expect(cmd.stdout) == SAMPLE_OUTPUT  | 
            
            
                                                        
            
                                    
            
            
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This can be caused by one of the following:
1. Missing Dependencies
This error could indicate a configuration issue of Pylint. Make sure that your libraries are available by adding the necessary commands.
2. Missing __init__.py files
This error could also result from missing
__init__.pyfiles in your module folders. Make sure that you place one file in each sub-folder.