Add generic types and update tests (#107)

* Add generic types and update tests

* Add generic types to `on`, `off` and `emit` to enable some nicer TS
  usage if you specify what type you're expecting from the `EventData`.
* Move the tests to be TypeScript source. This will help catch errors in
  the tests if there are any type errors.
* Create a new test to test the generic types and make sure they pass
  and error when expected.
* Upgrade to Mocha 8.
* Did some tidying up of the package.json scripts.

* Tweak TS setup to validate tests

* Fix d.ts generation and tests

Co-authored-by: Jason Miller <[email protected]>

1 files changed, 0 insertions, 20 deletions

diff --git a/test/types.ts b/test/types.ts
deleted file mode 100644
index 23334bb..0000000
--- a/test/types.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import mitt, { EventHandlerList, EventHandlerMap } from '..';
-
-const events = mitt();
-function foo() {}
-events.on('foo', foo);
-events.emit('foo', 'hello');
-
-// handler return type should be ignored:
-events.on('foo', async e => e * 42);
-
-// event map type
-const map = new Map<string, EventHandlerList>([
-	['foo', [foo]]
-]);
-const events2 = mitt(map);
-events2.emit('foo', 'hello');
-
-// event map type & iterables
-const map2 : EventHandlerMap = new Map(Object.entries(({ foo: [foo] })));
-mitt(map2);