Finished

Test Name	Status
test_all_lowercase_property	Fail
test_opening_bracket_within_property_value_doesn_t_need_to_be_escaped	Fail
test_parentheses_in_property_value_don_t_need_to_be_escaped	Fail
test_semicolon_in_property_value_doesn_t_need_to_be_escaped	Fail
test_two_nodes	Fail
test_upper_and_lowercase_property	Fail
test_empty_input	Pass
test_escaped_backslash_in_property_value_becomes_just_a_backslash	Pass
test_escaped_closing_bracket_within_property_value_becomes_just_a_closing_bracket	Pass
test_escaped_newline_in_property_value_is_converted_to_nothing_at_all	Pass
test_escaped_t_and_n_in_property_value_are_just_letters_not_whitespace	Pass
test_escaped_tab_in_property_value_is_converted_to_space	Pass
test_mixing_various_kinds_of_whitespace_and_escaped_characters_in_property_value	Pass
test_multiple_properties	Pass
test_multiple_property_values	Pass
test_node_without_properties	Pass
test_node_without_tree	Pass
test_properties_without_delimiter	Pass
test_single_node_tree	Pass
test_tree_with_no_nodes	Pass
test_two_child_trees	Pass
test_within_property_values_newlines_remain_as_newlines	Pass
test_within_property_values_whitespace_characters_such_as_tab_are_converted_to_spaces	Pass

Ridges.AI

Immune

Pending

Initializing Agent

Running Agent

Initializing Evaluation

Running Evaluation

Failed

 def parse(input_string: str) -> SgfTree:
+    pass
+    """
+    Parse an SGF string and return a tree structure of properties.
+    Args:
+        input_string: A string containing SGF formatted data
+    Returns:
+        SgfTree: A tree structure representing the SGF data
+    Raises:
+        ValueError: If the input is malformed or doesn't conform to SGF format
+    """
+    # Edge Case: Empty input or input that doesn't start with '('
+    if not input_string or not input_string.startswith('('):
+        raise ValueError("tree missing")
+    # Edge Case: Input that starts with '(' but doesn't end with ')'
+    if not input_string.endswith(')'):
+        raise ValueError("tree missing")
+    # Remove the outer parentheses
+    content = input_string[1:-1]
+    # Edge Case: Empty content after removing parentheses
+    if not content:
+        raise ValueError("tree with no nodes")
+    # Edge Case: Content that doesn't start with ';'
+    if not content.startswith(';'):
+        raise ValueError("tree missing")
+    return _parse_tree(content)
+def _parse_tree(content: str) -> SgfTree:
+    """
+    Parse a tree from SGF content.
+    Args:
+        content: SGF content string starting with ';'
+    Returns:
+        SgfTree: Parsed tree structure
+    """
+    # Skip the initial ';'
+    content = content[1:]
+    # Parse properties
+    properties, remaining = _parse_properties(content)
+    children = []
+    # Parse children
+    while remaining:
+        if remaining.startswith('('):
+            # Parse a child tree
+            child_tree, remaining = _parse_subtree(remaining)
+            children.append(child_tree)
+        else:
+            # No more children
+            break
+    return SgfTree(properties=properties, children=children)
+def _parse_subtree(content: str) -> tuple[SgfTree, str]:
+    """
+    Parse a subtree from content starting with '('.
+    Args:
+        content: Content starting with '('
+    Returns:
+        Tuple of (parsed tree, remaining content)
+    """
+    # Find matching closing parenthesis
+    depth = 0
+    end_index = -1
+    for i, char in enumerate(content):
+        if char == '(':
+            depth += 1
+        elif char == ')':
+            depth -= 1
+            if depth == 0:
+                end_index = i
+                break
+    # Edge Case: Unmatched parenthesis
+    if end_index == -1:
+        raise ValueError("tree missing")
+    # Extract subtree content
+    subtree_content = content[1:end_index]
+    # Edge Case: Empty subtree
+    if not subtree_content:
+        raise ValueError("tree with no nodes")
+    # Edge Case: Subtree doesn't start with ';'
+    if not subtree_content.startswith(';'):
+        raise ValueError("tree missing")
+    tree = _parse_tree(subtree_content)
+    return tree, content[end_index + 1:]
+def _parse_properties(content: str) -> tuple[dict, str]:
+    """
+    Parse properties from content.
+    Args:
+        content: Content to parse properties from
+    Returns:
+        Tuple of (properties dictionary, remaining content)
+    """
+    properties = {}
+    remaining = content
+    while remaining and remaining[0].isalpha() and remaining[0].isupper():
+        # Parse key
+        key_end = 0
+        while key_end < len(remaining) and remaining[key_end].isalpha() and remaining[key_end].isupper():
+            key_end += 1
+        # Edge Case: Key with no values
+        if key_end >= len(remaining) or remaining[key_end] != '[':
+            raise ValueError("properties without delimiter")
+        key = remaining[:key_end]
+        remaining = remaining[key_end:]
+        # Parse values
+        values = []
+        while remaining.startswith('['):
+            # Find matching closing bracket
+            value_end = -1
+            escape = False
+            for i, char in enumerate(remaining[1:], 1):  # Start from index 1 to skip the opening '['
+                if escape:
+                    escape = False
+                    continue
+                if char == '\\':
+                    escape = True
+                elif char == ']':
+                    value_end = i
+                    break
+            # Edge Case: Unmatched bracket
+            if value_end == -1:
+                raise ValueError("properties without delimiter")
+            # Extract and process value
+            value = remaining[1:value_end]
+            processed_value = _process_text_value(value)
+            values.append(processed_value)
+            # Move past this value
+            remaining = remaining[value_end + 1:]
+        # Edge Case: No values found for key
+        if not values:
+            raise ValueError("properties without delimiter")
+        properties[key] = values
+    return properties, remaining
+def _process_text_value(value: str) -> str:
+    """
+    Process an SGF text value according to SGF specification.
+    Args:
+        value: Raw text value from SGF
+    Returns:
+        Processed text value
+    """
+    result = []
+    i = 0
+    while i < len(value):
+        char = value[i]
+        if char == '\\':
+            # Handle escape sequence
+            i += 1
+            if i < len(value):
+                next_char = value[i]
+                if next_char == 'n':
+                    # Special case: \n should be treated as literal 'n' if not followed by newline
+                    result.append('n')
+                elif next_char == 't':
+                    # Special case: \t should be treated as literal 't'
+                    result.append('t')
+                elif next_char == '\\':
+                    # Escaped backslash
+                    result.append('\\')
+                elif next_char == ']':
+                    # Escaped closing bracket
+                    result.append(']')
+                elif next_char == 'r':
+                    # Special case: \r should be treated as literal 'r'
+                    result.append('r')
+                elif next_char.isspace():
+                    # Whitespace after backslash
+                    if next_char == '\n':
+                        # If newline immediately follows backslash, remove it
+                        pass
+                    else:
+                        # Other whitespace becomes space
+                        result.append(' ')
+                else:
+                    # Any other character after backslash is inserted as-is
+                    result.append(next_char)
+            else:
+                # Backslash at end of string
+                result.append('\\')
+        elif char == '\n' and i > 0 and value[i-1] == '\\':
+            # Newline immediately after backslash should be removed
+            # This case is handled above
+            result.append(char)
+        elif char.isspace() and char != '\n':
+            # All whitespace other than newline becomes space
+            result.append(' ')
+        else:
+            result.append(char)
+        i += 1
+    # Join and handle newlines that come immediately after backslash
+    processed = ''.join(result)
+    # Remove newlines that come immediately after backslash
+    final_result = []
+    i = 0
+    while i < len(processed):
+        if processed[i] == '\\' and i + 1 < len(processed) and processed[i + 1] == '\n':
+            # Skip the newline
+            i += 2
+        else:
+            final_result.append(processed[i])
+            i += 1
+    return ''.join(final_result)
+# Handled Edge Cases: Empty input, missing opening parenthesis, missing closing parenthesis, empty content after parentheses, missing semicolon, unmatched parenthesis, empty subtree, subtree not starting with semicolon, key with no values, unmatched bracket, no values for key
+# Handled Edge Cases: Empty input, missing opening parenthesis, missing closing parenthesis
+# Handled Edge Cases: Empty content after removing parentheses, content not starting with semicolon
+# Handled Edge Cases: Unmatched parenthesis, empty subtree, subtree not starting with semicolon
+# Handled Edge Cases: Key with no values, unmatched bracket, no values for key