fix(valid-expect): allow expect(value, "message")

[azu]

Allow to use expect(value, "message").toBe(1) pattern.

📝 Note: TypeScript type information is required for accurate implementation.
Since ASTs may not contain type, only simple string literals and template literals are supported.

OK:

expect(value, "string literal").toBe(1);
expect(value, `template literal`).toBe(1);

const message = "message";
expect(value, `${message}`).toBe(1);

NG:

// variable is not allowed - it is limitation of current implemtation
const message = "message";
expect(value, message).toBe(1);
// non string types
expect(value, {}).toBe(1);
expect(value, []).toBe(1);
expect(value, 1).toBe(1);

Note

This feature is undocument yet, but vitest type definition define it.

• expect(value, MESSAGE) is not documented vitest#6337

Waiting until it is documented may be the right thing to do.

fix #503

[veritem]

thanks