Function rename

src/rename/tests.rs:36–53

Helper: send a rename request and return the workspace edit.

(
    backend: &Backend,
    uri: &Url,
    line: u32,
    character: u32,
    new_name: &str,
)

/// Helper: send a rename request and return the workspace edit.
async fn rename(
    backend: &Backend,
    uri: &Url,
    line: u32,
    character: u32,
    new_name: &str,
) -> Option<WorkspaceEdit> {
    let params = RenameParams {
        text_document_position: TextDocumentPositionParams {
            text_document: TextDocumentIdentifier { uri: uri.clone() },
            position: Position { line, character },
        },
        new_name: new_name.to_string(),
        work_done_progress_params: WorkDoneProgressParams::default(),
    };

    backend.rename(params).await.unwrap()
}

/// Collect all text edits for a given URI from a WorkspaceEdit.
fn edits_for_uri(edit: &WorkspaceEdit, uri: &Url) -> Vec<TextEdit> {