test(utils): adds tests for isPromist

rafamel · Oct 2, 2019 · 4e05218 · 4e05218
1 parent c52e6e4
commit 4e05218
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/test/utils/is-promist.test.ts b/test/utils/is-promist.test.ts
@@ -0,0 +1,18 @@
+import isPromist from '~/utils/is-promist';
+import { mark } from '~/helpers';
+
+test(`returns false`, () => {
+  for (const kind of mark.list) {
+    expect(isPromist(Promise.resolve(), kind)).toBe(false);
+  }
+});
+test(`returns true`, () => {
+  for (const kind of mark.list) {
+    const promise = mark.set(Promise.resolve(), kind);
+    expect(isPromist(promise, kind)).toBe(true);
+    for (const inner of mark.list) {
+      if (kind === inner) continue;
+      expect(isPromist(promise, inner)).toBe(false);
+    }
+  }
+});