unit tests (#353)

* unit tests

* test functions

* functions tests

* android permissions and b64 tests

* ts fix, improve tests

* handle clearCachedCredentials exceptional method

* useStripeTerminala more unit tests

* typo fix

package.json

@@ -54,6 +54,7 @@
     "@expo/config-plugins": "^4.0.18",
     "@react-native-community/bob": "^0.16.2",
     "@react-native-community/eslint-config": "^2.0.0",
+    "@testing-library/react-native": "^10.0.0",
     "@types/base-64": "^1.0.0",
     "@types/jest": "^27.0.2",
     "@types/react": "^16.9.19",
@@ -73,6 +74,7 @@
     "prettier": "^2.0.5",
     "react": "17.0.2",
     "react-native": "0.68.2",
+    "react-test-renderer": "17.0.2",
     "stripe": "^7.14.0",
     "typedoc": "^0.22.15",
     "typescript": "^4.6.2"

src/__tests__/__snapshots__/functions.test.ts.snap

@@ -0,0 +1,42 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`functions.test.ts Functions snapshot ensure there are no unexpected changes to the functions exports 1`] = `
+Object {
+  "cancelCollectPaymentMethod": [Function],
+  "cancelCollectRefundPaymentMethod": [Function],
+  "cancelCollectSetupIntent": [Function],
+  "cancelDiscovering": [Function],
+  "cancelInstallingUpdate": [Function],
+  "cancelPaymentIntent": [Function],
+  "cancelReadReusableCard": [Function],
+  "cancelSetupIntent": [Function],
+  "clearCachedCredentials": [Function],
+  "clearReaderDisplay": [Function],
+  "collectPaymentMethod": [Function],
+  "collectRefundPaymentMethod": [Function],
+  "collectSetupIntentPaymentMethod": [Function],
+  "confirmSetupIntent": [Function],
+  "connectBluetoothReader": [Function],
+  "connectEmbeddedReader": [Function],
+  "connectHandoffReader": [Function],
+  "connectInternetReader": [Function],
+  "connectLocalMobileReader": [Function],
+  "connectUsbReader": [Function],
+  "createPaymentIntent": [Function],
+  "createSetupIntent": [Function],
+  "disconnectReader": [Function],
+  "discoverReaders": [Function],
+  "getLocations": [Function],
+  "initialize": [Function],
+  "installAvailableUpdate": [Function],
+  "processPayment": [Function],
+  "processRefund": [Function],
+  "readReusableCard": [Function],
+  "retrievePaymentIntent": [Function],
+  "retrieveSetupIntent": [Function],
+  "setConnectionToken": [Function],
+  "setReaderDisplay": [Function],
+  "setSimulatedCard": [Function],
+  "simulateReaderUpdate": [Function],
+}
+`;