Skip lines with #noqa comment

rflint/parser/parser.py

@@ -124,6 +124,7 @@ def __init__(self, path, parent=None):
         self.path = os.path.abspath(path)
         self.tables = []
         self.rows = []
+        self.skip_lines = []
 
         try:
             self._load(path)
@@ -172,17 +173,21 @@ def _load(self, path):
             # N.B. the caller should be catching errors
             self.raw_text = f.read()
             f.file.seek(0)
+            skip_pattern = re.compile(r'# *noqa\b')
 
             matcher = Matcher(re.IGNORECASE)
             for linenumber, raw_text in enumerate(f.readlines()):
-                linenumber += 1; # start counting at 1 rather than zero
+                linenumber += 1  # start counting at 1 rather than zero
 
                 # this mimics what the robot TSV reader does --
                 # it replaces non-breaking spaces with regular spaces,
                 # and then strips trailing whitespace
                 raw_text = raw_text.replace(u'\xA0', ' ')
                 raw_text = raw_text.rstrip()
 
+                if skip_pattern.search(raw_text):
+                    self.skip_lines.append(linenumber)
+
                 # FIXME: I'm keeping line numbers but throwing away
                 # where each cell starts. I should be preserving that
                 # (though to be fair, robot is throwing that away so

rflint/rflint.py

@@ -47,6 +47,7 @@ def __init__(self):
         # mapping of class names to instances, to enable us to
         # instantiate each rule exactly once
         self._rules = {}
+        self.noqa = {}
 
         for path in (builtin_rules, site_rules):
             for filename in glob.glob(path+"/*.py"):
@@ -155,6 +156,10 @@ def _process_file(self, filename):
         self._print_filename = filename if self.args.print_filenames else None
 
         robot_file = RobotFactory(filename)
+
+        for skip_line in robot_file.skip_lines:
+            self.noqa.setdefault(robot_file.path, []).append(skip_line)
+
         for rule in self.general_rules:
             if rule.severity != IGNORE:
                 rule.apply(robot_file)
@@ -195,6 +200,10 @@ def report(self, linenumber, filename, severity, message, rulename, char):
             print("+ " + self._print_filename)
             self._print_filename = None
 
+        # do not report nor add error count if line was indicated as 'noqa'
+        if filename in self.noqa and linenumber in self.noqa[filename]:
+            return
+
         if severity in (WARNING, ERROR):
             self.counts[severity] += 1
         else:

rflint/rules/testcaseRules.py

@@ -20,12 +20,12 @@
 
 class PeriodInTestName(TestRule):
     '''Warn about periods in the testcase name
-    
+
     Since robot uses "." as a path separator, using a "." in a testcase
-    name can lead to ambiguity. 
+    name can lead to ambiguity.
     '''
     severity = WARNING
-    
+
     def apply(self,testcase):
         if "." in testcase.name:
             self.report(testcase, "'.' in testcase name '%s'" % testcase.name, testcase.linenumber)
@@ -35,9 +35,16 @@ class TagWithSpaces(TestRule):
     severity=ERROR
 
     def apply(self, testcase):
+        tags_with_spaces = []
         for tag in testcase.tags:
             if ((" " in tag) or ("\t" in tag)):
-                self.report(testcase, "space not allowed in tag name: '%s'" % tag, testcase.linenumber)
+                tags_with_spaces.append(tag)
+        # second loop is to discover line number of tag appearance
+        for setting in testcase.settings:
+            for cell in setting:
+                for tag_with_spaces in tags_with_spaces:
+                    if tag_with_spaces in cell:
+                        self.report(testcase, "space not allowed in tag name: '%s'" % tag_with_spaces, setting.startline)
 
 class RequireTestDocumentation(TestRule):
     '''Verify that a test suite has documentation

test_data/acceptance/noqa.robot

@@ -0,0 +1,40 @@
+*** Settings ***
+Documentation       Test cases with skip line indicator (# noqa)
+
+
+*** Test Cases ***
+Skip Tag With Spaces
+    [Documentation]     Skip next line containing tag with spaces
+    [Tags]      Tag With Spaces     TagWithNoSpace      # noqa
+    ${foo}      Set Variable        some variable
+    ${bar}      Set Variable        another variable
+
+Do Not Skip Tag With Spaces
+    [Documentation]     Report tag with spaces
+    [Tags]      Tag With Spaces     TagWithNoSpace
+    ${foo}      Set Variable        some variable
+    ${bar}      Set Variable        another variable
+
+Skip This Test Case With Dot.     #noqa
+    [Documentation]     Do not report improper test case name
+    ${foo}      Set Variable        some variable
+    ${bar}      Set Variable        another variable
+
+Do Not Skip This Test Case With Dot.
+    [Documentation]     Report dot presence in test case name
+    ${foo}      Set Variable        some variable
+    ${bar}      Set Variable        another variable
+
+Skip Very Long Line
+    [Documentation]         Do not report very long line (+100 chars)
+    ${long_variable}        Set Variable        This is a very long sentence with too many characters that should not be reported because of the 'noqa' comment at the end of this line  # noqa and something else
+    ${short_variable}       Set Variable        This is a short variable
+
+Do Not Skip Very Long Line
+    [Documentation]         Report very long line (+100 chars)
+    ${long_variable}        Set Variable        This is a very long sentence with too many characters that will be reported because of lack of 'noqa' comment at the end of this line
+    ${short_variable}       Set Variable        This is a short variable
+
+Do Not Skip Line Because Of Improper Comment    # noqaa
+    [Documentation]         Improper comment should not make rflint omit the line
+    ${var}                  Set Variable        This test case contains only one test step

tests/acceptance/noqa.robot

@@ -0,0 +1,29 @@
+*** Settings ***
+| Documentation
+| ... | Runs rflint against the rflint test suites and resource files
+|
+| Library    | OperatingSystem
+| Library    | Process
+| Resource   | SharedKeywords.robot
+
+*** Test Cases ***
+| Run rflint and check if output contains given warnings and errors
+| | Run rf-lint with the following options:
+| | ... | test_data/acceptance/noqa.robot
+| |
+| | @{messages}= | Split to lines | ${result.stdout}
+| | ${warnings}= | Get match count | ${messages} | regexp=^W:
+| | ${errors}=   | Get match count | ${messages} | regexp=^E:
+| |
+| | Run keyword if | "${result.rc}" != "${1}" or ${warnings} != 3 or ${errors} != 1
+| | ... | Fail | unexpectected errors or warnings: \n${result.stdout}\n${result.stderr}
+| |
+| | Output should contain
+| | ... | W: 35, 100: Line is too long (exceeds 100 characters) (LineTooLong)
+| | ... | E: 14, 0: space not allowed in tag name: 'Tag With Spaces' (TagWithSpaces)
+| | ... | W: 23, 0: '.' in testcase name 'Do Not Skip This Test Case With Dot.' (PeriodInTestName)
+| | ... | W: 38, 0: Too few steps (1) in test case (TooFewTestSteps)
+| | Output should not contain
+| | ... | W: 30, 100: Line is too long (exceeds 100 characters) (LineTooLong)
+| | ... | E: 8, 0: space not allowed in tag name: 'Tag With Spaces' (TagWithSpaces)
+| | ... | W: 18, 0: '.' in testcase name 'Skip This Test Case With Dot.' (PeriodInTestName)