jest-message-util

flattenErrorStack: (error: Error) => string;

formatErrorStack: (
    errorOrStack: Error | string,
    config: StackTraceConfig,
    options: StackTraceOptions,
    testPath?: string
) => string;

formatExecError: (
    error: Error | TestResult.SerializableError | string | number | undefined,
    config: StackTraceConfig,
    options: StackTraceOptions,
    testPath?: string,
    reuseMessage?: boolean,
    noTitle?: boolean
) => string;

formatPath: (
    line: string,
    config: StackTraceConfig,
    relativeTestPath?: string | null
) => string;

formatResultsErrors: (
    testResults: Array<TestResult.AssertionResult>,
    config: StackTraceConfig,
    options: StackTraceOptions,
    testPath?: string
) => string | null;

formatStackTrace: (
    stack: string,
    config: StackTraceConfig,
    options: StackTraceOptions,
    testPath?: string
) => string;

getStackTraceLines: (
    stack: string,
    options?: StackTraceOptions
) => Array<string>;

getTopFrame: (lines: Array<string>) => Frame | null;

hasNestedErrors: (value: unknown) => value is Error;

indentAllLines: (lines: string) => string;

separateMessageFromStack: (content: string) => {
    message: string;
    stack: string;
};

type StackTraceConfig = Pick<Config.ProjectConfig, 'rootDir' | 'testMatch'>;

type StackTraceOptions = {
    noStackTrace: boolean;
    noCodeFrame?: boolean;
};