/**
* Lightweight assertion functions for integration tests.
* Each throws a descriptive error on failure — no vitest dependency.
*/
export class AssertionError extends Error {
constructor(message: string) {
super(message);
this.name = 'AssertionError';
}
}
export function assertEqual<T>(actual: T, expected: T, label: string): void {
if (actual !== expected) {
throw new AssertionError(
`${label}: expected ${JSON.stringify(expected)}, got ${JSON.stringify(actual)}`
);
}
}
export function assertTruthy(value: unknown, label: string): void {
if (!value) {
throw new AssertionError(`${label}: expected truthy value, got ${JSON.stringify(value)}`);
}
}
export function assertContains(str: string, substr: string, label: string): void {
if (!str.includes(substr)) {
throw new AssertionError(
`${label}: expected string to contain ${JSON.stringify(substr)}, got ${JSON.stringify(str)}`
);
}
}
export function assertHasField(obj: Record<string, unknown>, key: string, label: string): void {
if (!(key in obj)) {
throw new AssertionError(
`${label}: expected object to have field "${key}", keys: [${Object.keys(obj).join(', ')}]`
);
}
}
export function assertIsArray(value: unknown, label: string): void {
if (!Array.isArray(value)) {
throw new AssertionError(`${label}: expected array, got ${typeof value}`);
}
}
