test(dtslint): add race (#4344)

* test(dtslint): add race

* test(dtslint): remove type check

spec-dtslint/operators/race-spec.ts

@@ -0,0 +1,36 @@
+import { of } from 'rxjs';
+import { race } from 'rxjs/operators';
+
+it('should infer correctly', () => {
+ const o = of('a', 'b', 'c').pipe(race()); // $ExpectType Observable<string>
+});
+
+it('should allow observables', () => {
+ const o = of('a', 'b', 'c').pipe(race(of('x', 'y', 'z'))); // $ExpectType Observable<string>
+ const p = of('a', 'b', 'c').pipe(race(of('x', 'y', 'z'), of('t', 'i', 'm'))); // $ExpectType Observable<string>
+});
+
+it('should allow an array of observables', () => {
+ const o = of('a', 'b', 'c').pipe(race([of('x', 'y', 'z')])); // $ExpectType Observable<string>
+ const p = of('a', 'b', 'c').pipe(race([of('x', 'y', 'z'), of('t', 'i', 'm')])); // $ExpectType Observable<string>
+});
+
+it('should be possible to provide a return type', () => {
+ const o = of('a', 'b', 'c').pipe(race<string, number>([of(1, 2, 3)])); // $ExpectType Observable<number>
+ const p = of('a', 'b', 'c').pipe(race<string, number>([of(1, 2, 3), of('t', 'i', 'm')])); // $ExpectType Observable<number>
+ const q = of('a', 'b', 'c').pipe(race<string, number>(of(1, 2, 3), [of(1, 2, 3)])); // $ExpectType Observable<number>
+ const r = of('a', 'b', 'c').pipe(race<string, number>([of(1, 2, 3)], of('t', 'i', 'm'))); // $ExpectType Observable<number>
+});
+
+it('should be possible to use nested arrays', () => {
+ const o = of('a', 'b', 'c').pipe(race([of('x', 'y', 'z')])); // $ExpectType Observable<string>
+});
+
+it('should enforce types', () => {
+ const o = of('a', 'b', 'c').pipe(race('aa')); // $ExpectError
+});
+
+it('should enforce argument types when not provided ', () => {
+ const o = of('a', 'b', 'c').pipe(race(of(1, 2, 3))); // $ExpectError
+ const p = of('a', 'b', 'c').pipe(race([of(1, 2, 3)])); // $ExpectError
+});