Atlas › Test

is-promise.mjs|title=isPromise returns `false` if `then` is not a function|occurrence=1

Exact test identity: mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/is-promise.mjs|title=isPromise returns `false` if `then` is not a function|occurrence=1

Package: mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test
Suite / test hierarchy: is-promise.mjs|title=isPromise returns `false` if `then` is not a function|occurrence=1
Test: is-promise.mjs|title=isPromise returns `false` if `then` is not a function|occurrence=1
Introduced at: is-promise.ts ×1 Frontier kind: Joint frontier
Covered ranges: 4
Covered lines: 9
Covered files: 1

Co-introduced tests

2 other tests enter at the same concept.

Covered source

Expand a file to inspect source; the > gutter marks covered lines.

lib/utils/is-promise.ts 9 covered LOC · 4 ranges

Open complete file

  1
  >
  export function isPromise<T>(
  
is-promise.ts


  2
  >
    maybePromise: T | Promise<T>
  
is-promise.ts


  3
  >
  ): maybePromise is Promise<T> {
  

  4
  >
    return (
  

  5
  >
      !!maybePromise &&
  

  6
  >
      !!(maybePromise as Promise<T>).then &&
  

  7
  >
      typeof (maybePromise as Promise<T>).then === 'function'
  
is-promise.ts


  8
  >
    );
  
is-promise.ts


  9
  >
  }
  