diff options
Diffstat (limited to 'std/node/events_test.ts')
-rw-r--r-- | std/node/events_test.ts | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/std/node/events_test.ts b/std/node/events_test.ts index 3c3628e3a..4b47686f4 100644 --- a/std/node/events_test.ts +++ b/std/node/events_test.ts @@ -246,6 +246,25 @@ test({ }); test({ + name: "Provide a non-existent event to removeAllListeners will do nothing", + fn() { + const testEmitter = new EventEmitter(); + testEmitter.on("event", shouldNeverBeEmitted); + testEmitter.on("event", shouldNeverBeEmitted); + testEmitter.on("other event", shouldNeverBeEmitted); + testEmitter.on("other event", shouldNeverBeEmitted); + testEmitter.once("other event", shouldNeverBeEmitted); + assertEquals(testEmitter.listenerCount("event"), 2); + assertEquals(testEmitter.listenerCount("other event"), 3); + + testEmitter.removeAllListeners("non-existent"); + + assertEquals(testEmitter.listenerCount("event"), 2); + assertEquals(testEmitter.listenerCount("other event"), 3); + }, +}); + +test({ name: "Remove individual listeners, which can also be chained", fn() { const testEmitter = new EventEmitter(); |