packages/expect-more-jasmine/src/to-be-positive-number.ts
/// <reference types="jasmine" />
import { isPositiveNumber } from 'expect-more';
import { printReceived } from 'jest-matcher-utils';
declare global {
namespace jasmine {
// eslint-disable-next-line @typescript-eslint/no-unused-vars
interface Matchers<T> {
/**
* Asserts that a value is a `Number` greater than 0.
* @example
* expect(5).toBePositiveNumber();
*/
toBePositiveNumber(): boolean;
}
}
}
export const toBePositiveNumberMatcher: jasmine.CustomMatcherFactory = () => {
return {
compare(value: unknown) {
const pass = isPositiveNumber(value);
const message = pass
? `expected ${printReceived(value)} not to be a positive number`
: `expected ${printReceived(value)} to be a positive number`;
return { message, pass };
},
};
};
beforeAll(() => {
jasmine.addMatchers({
toBePositiveNumber: toBePositiveNumberMatcher,
});
});