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// Error types for playwright-core
use thiserror::Error;
/// Result type alias for playwright-core operations
pub type Result<T> = std::result::Result<T, Error>;
/// Errors that can occur when using playwright-core
#[derive(Debug, Error)]
pub enum Error {
/// Playwright server binary was not found
///
/// The Playwright Node.js driver could not be located.
/// To resolve this, install Playwright using: `npm install playwright`
/// Or ensure the PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD environment variable is not set.
#[error("Playwright server not found. Install with: npm install playwright")]
ServerNotFound,
/// Failed to launch the Playwright server process
///
/// The Playwright server process could not be started.
/// Common causes: Node.js not installed, insufficient permissions, or port already in use.
/// Details: {0}
#[error("Failed to launch Playwright server: {0}. Check that Node.js is installed.")]
LaunchFailed(String),
/// Server error (runtime issue with Playwright server)
#[error("Server error: {0}")]
ServerError(String),
/// Browser is not installed
///
/// The specified browser has not been installed using Playwright's installation command.
/// To resolve this, install browsers using the versioned install command to ensure compatibility.
#[error(
"Browser '{browser_name}' is not installed.\n\n\
{message}\n\n\
To install {browser_name}, run:\n \
npx playwright@{playwright_version} install {browser_name}\n\n\
Or install all browsers:\n \
npx playwright@{playwright_version} install\n\n\
See: https://playwright.dev/docs/browsers"
)]
BrowserNotInstalled {
browser_name: String,
message: String,
playwright_version: String,
},
/// Failed to establish connection with the server
#[error("Failed to connect to Playwright server: {0}")]
ConnectionFailed(String),
/// Transport-level error (stdio communication)
#[error("Transport error: {0}")]
TransportError(String),
/// Protocol-level error (JSON-RPC)
#[error("Protocol error: {0}")]
ProtocolError(String),
/// I/O error
#[error("I/O error: {0}")]
Io(#[from] std::io::Error),
/// JSON serialization/deserialization error
#[error("JSON error: {0}")]
Json(#[from] serde_json::Error),
/// Timeout waiting for operation
///
/// Contains context about what operation timed out and the timeout duration.
/// Common causes include slow network, server not responding, or element not becoming actionable.
/// Consider increasing the timeout or checking if the target is accessible.
#[error("Timeout: {0}")]
Timeout(String),
/// Navigation timeout
///
/// Occurs when page navigation exceeds the specified timeout.
/// Includes the URL being navigated to and timeout duration.
#[error("Navigation timeout after {duration_ms}ms navigating to '{url}'")]
NavigationTimeout { url: String, duration_ms: u64 },
/// Target was closed (browser, context, or page)
///
/// Occurs when attempting to perform an operation on a closed target.
/// The target must be recreated before it can be used again.
#[error("Target closed: Cannot perform operation on closed {target_type}. {context}")]
TargetClosed {
target_type: String,
context: String,
},
/// Unknown protocol object type
#[error("Unknown protocol object type: {0}")]
UnknownObjectType(String),
/// Channel closed unexpectedly
#[error("Channel closed unexpectedly")]
ChannelClosed,
/// Invalid argument provided to method
#[error("Invalid argument: {0}")]
InvalidArgument(String),
/// Element not found by selector
///
/// Includes the selector that was used to locate the element.
/// This error typically occurs when waiting for an element times out.
#[error("Element not found: selector '{0}'")]
ElementNotFound(String),
/// Assertion timeout (expect API)
#[error("Assertion timeout: {0}")]
AssertionTimeout(String),
/// Object not found in registry (may have been closed/disposed)
#[error("Object not found (may have been closed): {0}")]
ObjectNotFound(String),
/// Type mismatch when downcasting a protocol object
///
/// Occurs when a protocol object's concrete type does not match the expected type.
/// This typically indicates a Playwright protocol version mismatch or a bug in the
/// object factory.
#[error("Type mismatch for object '{guid}': expected {expected}, got {actual}")]
TypeMismatch {
guid: String,
expected: String,
actual: String,
},
/// Invalid path provided
#[error("Invalid path: {0}")]
InvalidPath(String),
/// Error with additional context
#[error("{0}: {1}")]
Context(String, #[source] Box<Error>),
}
impl Error {
/// Adds context to the error
pub fn context(self, msg: impl Into<String>) -> Self {
Error::Context(msg.into(), Box::new(self))
}
}