test: improve expect.toHaveBeenWarned() message

2020-08-24 21:23:08 -04:00 · 2020-08-24 21:23:08 -04:00 · b742384313
commit b742384313
parent 59e58cd4a5
1 changed files with 4 additions and 1 deletions
--- a/scripts/setupJestEnv.ts
+++ b/scripts/setupJestEnv.ts
@ -12,7 +12,10 @@ expect.extend({
      return {
        pass: false,
        message: () =>
-          `expected "${received}" to have been warned.\n\nActual messages:\n\n - ${msgs}`
+          `expected "${received}" to have been warned` +
+          (msgs.length
+            ? `.\n\nActual messages:\n\n - ${msgs}`
+            : ` but no warning was recorded.`)
      }
    }
  },