common_error/mock.rs
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// Copyright 2023 Greptime Team
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! Utils for mock.
use std::any::Any;
use std::fmt;
use crate::ext::{ErrorExt, StackError};
use crate::status_code::StatusCode;
/// A mock error mainly for test.
#[derive(Debug)]
pub struct MockError {
pub code: StatusCode,
source: Option<Box<MockError>>,
}
impl MockError {
/// Create a new [MockError] without backtrace.
pub fn new(code: StatusCode) -> MockError {
MockError { code, source: None }
}
/// Create a new [MockError] with source.
pub fn with_source(source: MockError) -> MockError {
MockError {
code: source.code,
source: Some(Box::new(source)),
}
}
}
impl fmt::Display for MockError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", self.code)
}
}
impl std::error::Error for MockError {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
self.source.as_ref().map(|e| e as _)
}
}
impl ErrorExt for MockError {
fn status_code(&self) -> StatusCode {
self.code
}
fn as_any(&self) -> &dyn Any {
self
}
}
impl StackError for MockError {
fn debug_fmt(&self, _: usize, _: &mut Vec<String>) {}
fn next(&self) -> Option<&dyn StackError> {
None
}
}