Finished

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

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harrison

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Failed

 def parse(input_string: str) -> SgfTree:
+    pass
+    """
+    Parse an SGF string and return a tree structure of properties.
+    Args:
+        input_string: A string in SGF format
+    Returns:
+        SgfTree: The parsed SGF tree
+    Raises:
+        ValueError: If the input is invalid according to SGF format rules
+    """
+    # Edge Case: Empty input
+    if not input_string:
+        raise ValueError("tree missing")
+    # Edge Case: Input doesn't start with '('
+    if not input_string.startswith('('):
+        raise ValueError("tree missing")
+    # Edge Case: Input 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 tree with no nodes
+    if not content:
+        raise ValueError("tree with no nodes")
+    # Edge Case: Tree doesn't start with ';'
+    if not content.startswith(';'):
+        raise ValueError("tree missing")
+    return _parse_tree(content)
+def _parse_tree(content: str) -> SgfTree:
+    """
+    Parse the content of a tree (without outer parentheses).
+    Args:
+        content: The content of the tree
+    Returns:
+        SgfTree: The parsed tree
+    """
+    # Skip the initial ';'
+    index = 1
+    # Parse properties of the current node
+    properties, index = _parse_properties(content, index)
+    # Parse children
+    children = []
+    while index < len(content):
+        if content[index] == '(':  # Start of a child tree
+            child_tree, consumed = _parse_subtree(content[index:])
+            children.append(child_tree)
+            index += consumed
+        else:
+            # If we have more content but it doesn't start with '(', it's a sequence
+            # Parse the next node as a child
+            child_tree, consumed = _parse_node_sequence(content[index:])
+            children.append(child_tree)
+            index += consumed
+    return SgfTree(properties=properties, children=children)
+def _parse_subtree(content: str) -> tuple[SgfTree, int]:
+    """
+    Parse a subtree enclosed in parentheses.
+    Args:
+        content: String starting with '('
+    Returns:
+        Tuple of (parsed tree, number of characters consumed)
+    """
+    # Edge Case: Missing opening parenthesis
+    if not content.startswith('('):
+        raise ValueError("tree missing")
+    # Find matching closing parenthesis
+    balance = 1
+    index = 1
+    while index < len(content) and balance > 0:
+        if content[index] == '(':
+            balance += 1
+        elif content[index] == ')':
+            balance -= 1
+        index += 1
+    # Edge Case: Unmatched parenthesis
+    if balance != 0:
+        raise ValueError("tree missing")
+    # Parse the content inside the parentheses
+    inner_content = content[1:index-1]
+    # Edge Case: Empty subtree
+    if not inner_content:
+        raise ValueError("tree with no nodes")
+    # Edge Case: Subtree doesn't start with ';'
+    if not inner_content.startswith(';'):
+        raise ValueError("tree missing")
+    tree = _parse_tree(inner_content)
+    return tree, index
+def _parse_node_sequence(content: str) -> tuple[SgfTree, int]:
+    """
+    Parse a sequence of nodes (shorthand notation).
+    Args:
+        content: String starting with ';'
+    Returns:
+        Tuple of (parsed tree, number of characters consumed)
+    """
+    # Edge Case: Missing semicolon
+    if not content.startswith(';'):
+        raise ValueError("tree missing")
+    # Parse properties of the current node
+    properties, index = _parse_properties(content, 1)
+    # If there are more nodes, recursively parse them as children
+    if index < len(content) and content[index] == ';':
+        # Parse the rest as a child node
+        child, consumed = _parse_node_sequence(content[index:])
+        return SgfTree(properties=properties, children=[child]), index + consumed
+    elif index < len(content) and content[index] == '(':
+        # Parse variations
+        children = []
+        while index < len(content) and content[index] == '(':
+            child, consumed = _parse_subtree(content[index:])
+            children.append(child)
+            index += consumed
+        return SgfTree(properties=properties, children=children), index
+    else:
+        # No more nodes, this is a leaf
+        return SgfTree(properties=properties), index
+def _parse_properties(content: str, start_index: int) -> tuple[dict, int]:
+    """
+    Parse properties from the content starting at start_index.
+    Args:
+        content: The content string
+        start_index: Index to start parsing from
+    Returns:
+        Tuple of (properties dictionary, index after parsing)
+    """
+    properties = {}
+    index = start_index
+    while index < len(content) and content[index].isalpha():
+        # Parse key
+        key_start = index
+        while index < len(content) and content[index].isalpha():
+            # Edge Case: Property key is not uppercase
+            if not content[index].isupper():
+                raise ValueError("property must be in uppercase")
+            index += 1
+        key = content[key_start:index]
+        # Edge Case: Missing opening bracket for property value
+        if index >= len(content) or content[index] != '[':
+            raise ValueError("properties without delimiter")
+        # Parse values
+        values = []
+        while index < len(content) and content[index] == '[':
+            index += 1  # Skip '['
+            value_start = index
+            # Parse value, handling escapes
+            while index < len(content) and content[index] != ']':
+                if content[index] == '\\':
+                    # Include the backslash in the value and move to next character
+                    # The escaped character will be processed in the next iteration
+                    index += 1
+                else:
+                    index += 1
+            # Edge Case: Unmatched bracket
+            if index >= len(content) or content[index] != ']':
+                raise ValueError("properties without delimiter")
+            value = content[value_start:index]
+            # Process the value according to SGF text type rules
+            # Process the value according to SGF text type rules
+            value = _process_text_value(value)
+            values.append(value)
+            index += 1  # Skip ']'
+        properties[key] = values
+    return properties, index
+def _process_text_value(value: str) -> str:
+    """
+    Process a text value according to SGF text type rules.
+    Args:
+        value: The raw value string
+    Returns:
+        Processed value string
+    """
+    result = []
+    i = 0
+    while i < len(value):
+        if value[i] == '\\':
+            # Handle escape sequences
+            i += 1
+            if i < len(value):
+                # If next character is newline, remove it
+                if value[i] == '\n':
+                    i += 1  # Skip the newline
+                else:
+                    # Any character after \ is inserted as-is
+                    # (including whitespace characters, which are converted to spaces)
+                    if value[i].isspace() and value[i] != '\n':
+                        result.append(' ')
+                    else:
+                        result.append(value[i])
+                    i += 1
+        else:
+            # Convert all whitespace characters other than newline to spaces
+            if value[i].isspace() and value[i] != '\n':
+                result.append(' ')
+                i += 1
+            else:
+                result.append(value[i])
+                i += 1
+    return ''.join(result)
+# Handled Edge Cases: Empty input, Input doesn't start with '(', Input doesn't end with ')', Empty tree with no nodes, Tree doesn't start with ';', Missing opening parenthesis, Unmatched parenthesis, Empty subtree, Subtree doesn't start with ';', Missing semicolon, Property key is not uppercase, Missing opening bracket for property value, Unmatched bracket