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CodyKoInABoxCodyKoInABox
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FIX count comment lines test using regex based approach
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‎tests/spice/analyzers/test_count_comment_lines.py‎

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import pytest
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import os
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from spice.analyzers.count_comment_lines import count_comment_lines
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# Define the path to the sample code directory relative to the test file
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SAMPLE_CODE_DIR = os.path.join(os.path.dirname(__file__), "..", "..", "sample-code")
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# Test cases for count_comment_lines
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@pytest.mark.parametrize(
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"filename, expected_comment_lines",
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[
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("sample_comments.py", 4), # Based on the content of sample_comments.py
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("example.py", 1), # Based on the content of example.py (assuming it has one full comment line)
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("example.js", 2), # Based on the content of example.js (assuming two full comment lines)
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("example.go", 2), # Based on the content of example.go (assuming two full comment lines)
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("example.rb", 1), # Based on the content of example.rb (assuming one full comment line)
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]
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)
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def test_count_comment_lines_python(filename, expected_comment_lines):
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"""Test count_comment_lines with various sample files."""
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file_path = os.path.join(SAMPLE_CODE_DIR, filename)
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# Ensure the sample file exists before running the test
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assert os.path.exists(file_path), f"Sample file not found: {file_path}"
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assert count_comment_lines(file_path) == expected_comment_lines
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def test_count_comment_lines_empty_file():
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"""Test count_comment_lines with an empty file."""
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empty_file_path = os.path.join(SAMPLE_CODE_DIR, "empty_test_file.py")
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with open(empty_file_path, "w") as f:
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f.write("")
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assert count_comment_lines(empty_file_path) == 0
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os.remove(empty_file_path) # Clean up the empty file
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def test_count_comment_lines_no_comments():
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"""Test count_comment_lines with a file containing no comments."""
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no_comments_path = os.path.join(SAMPLE_CODE_DIR, "no_comments_test_file.py")
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with open(no_comments_path, "w") as f:
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f.write("print(\"Hello\")\nx = 1")
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assert count_comment_lines(no_comments_path) == 0
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os.remove(no_comments_path) # Clean up
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def test_count_comment_lines_only_inline():
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"""Test count_comment_lines with only inline comments."""
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inline_comments_path = os.path.join(SAMPLE_CODE_DIR, "inline_comments_test_file.py")
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with open(inline_comments_path, "w") as f:
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f.write("x = 1 # inline\ny = 2 # another inline")
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assert count_comment_lines(inline_comments_path) == 0
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os.remove(inline_comments_path) # Clean up
2+
import re
493

504

5+
def count_comment_lines(file_path):
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"""
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Count full-line comments in a source code file using regex patterns.
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A full-line comment is a line that contains only a comment (and possibly whitespace),
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not a line that has both code and a comment.
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Args:
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file_path (str): Path to the source code file
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Returns:
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int: Number of full-line comments found
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Raises:
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ValueError: If the file extension is not supported
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FileNotFoundError: If the file doesn't exist
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"""
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if not os.path.exists(file_path):
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raise FileNotFoundError(f"File not found: {file_path}")
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# Get file extension
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_, ext = os.path.splitext(file_path)
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# Define comment patterns for different languages
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comment_patterns = {
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'.py': r'#',
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'.js': r'//',
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'.go': r'//',
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'.rb': r'#',
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'.java': r'//',
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'.cpp': r'//',
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'.c': r'//',
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'.cs': r'//',
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'.php': r'//',
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'.swift': r'//',
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'.kt': r'//',
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'.scala': r'//',
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'.rs': r'//',
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'.ts': r'//',
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'.jsx': r'//',
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'.tsx': r'//',
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}
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if ext not in comment_patterns:
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raise ValueError(f"Unsupported file extension: {ext}")
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comment_marker = comment_patterns[ext]
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try:
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with open(file_path, 'r', encoding='utf-8') as f:
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content = f.read()
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except UnicodeDecodeError:
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with open(file_path, 'r', encoding='latin-1') as f:
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content = f.read()
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if not content.strip():
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return 0
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lines = content.splitlines()
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comment_line_count = 0
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for line in lines:
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if _is_full_line_comment(line, comment_marker):
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comment_line_count += 1
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return comment_line_count
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def _is_full_line_comment(line, comment_marker):
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"""
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Check if a line is a full-line comment (contains only comment and whitespace).
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Args:
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line (str): The line to check
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comment_marker (str): The comment marker for the language (e.g., '//', '#')
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Returns:
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bool: True if the line is a full-line comment, False otherwise
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"""
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# Strip whitespace from the line
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stripped_line = line.strip()
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# Empty line
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if not stripped_line:
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return False
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# Line starts with comment marker (this is a full-line comment)
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if stripped_line.startswith(comment_marker):
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return True
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return False
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def _is_multiline_comment_start(line, language_ext):
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"""
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Check if a line starts a multi-line comment block.
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Currently handles basic cases for languages that support multi-line comments.
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Args:
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line (str): The line to check
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language_ext (str): File extension to determine language
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Returns:
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bool: True if line starts a multi-line comment
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"""
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stripped = line.strip()
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# Languages with /* */ style multi-line comments
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if language_ext in ['.js', '.go', '.java', '.cpp', '.c', '.cs', '.php', '.swift', '.kt', '.scala', '.rs', '.ts', '.jsx', '.tsx']:
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return stripped.startswith('/*')
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# Python has """ or ''' for docstrings/multi-line strings
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elif language_ext == '.py':
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return stripped.startswith('"""') or stripped.startswith("'''")
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return False
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def _is_multiline_comment_end(line, language_ext):
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"""
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Check if a line ends a multi-line comment block.
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Args:
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line (str): The line to check
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language_ext (str): File extension to determine language
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Returns:
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bool: True if line ends a multi-line comment
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"""
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stripped = line.strip()
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# Languages with /* */ style multi-line comments
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if language_ext in ['.js', '.go', '.java', '.cpp', '.c', '.cs', '.php', '.swift', '.kt', '.scala', '.rs', '.ts', '.jsx', '.tsx']:
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return stripped.endswith('*/')
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# Python docstrings
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elif language_ext == '.py':
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return stripped.endswith('"""') or stripped.endswith("'''")
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return False
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def count_comment_lines_with_multiline(file_path):
148+
"""
149+
Enhanced version that also counts multi-line comment blocks.
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Each line within a multi-line comment block is counted as a comment line.
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Args:
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file_path (str): Path to the source code file
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Returns:
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int: Number of comment lines (including multi-line comments)
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"""
158+
if not os.path.exists(file_path):
159+
raise FileNotFoundError(f"File not found: {file_path}")
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# Get file extension
162+
_, ext = os.path.splitext(file_path)
163+
164+
# Define single-line comment patterns
165+
comment_patterns = {
166+
'.py': r'#',
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'.js': r'//',
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'.go': r'//',
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'.rb': r'#',
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'.java': r'//',
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'.cpp': r'//',
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'.c': r'//',
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'.cs': r'//',
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'.php': r'//',
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'.swift': r'//',
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'.kt': r'//',
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'.scala': r'//',
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'.rs': r'//',
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'.ts': r'//',
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'.jsx': r'//',
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'.tsx': r'//',
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}
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if ext not in comment_patterns:
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raise ValueError(f"Unsupported file extension: {ext}")
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comment_marker = comment_patterns[ext]
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try:
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with open(file_path, 'r', encoding='utf-8') as f:
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content = f.read()
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except UnicodeDecodeError:
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with open(file_path, 'r', encoding='latin-1') as f:
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content = f.read()
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if not content.strip():
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return 0
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lines = content.splitlines()
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comment_line_count = 0
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in_multiline_comment = False
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for line in lines:
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stripped_line = line.strip()
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# Skip empty lines
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if not stripped_line:
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continue
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# Check for multi-line comment start
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if not in_multiline_comment and _is_multiline_comment_start(line, ext):
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in_multiline_comment = True
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comment_line_count += 1
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# Check if it also ends on the same line
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if _is_multiline_comment_end(line, ext) and stripped_line != '/**/':
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in_multiline_comment = False
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continue
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# Check for multi-line comment end
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if in_multiline_comment:
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comment_line_count += 1
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if _is_multiline_comment_end(line, ext):
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in_multiline_comment = False
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continue
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# Check for single-line comments
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if _is_full_line_comment(line, comment_marker):
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comment_line_count += 1
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return comment_line_count

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