Added toBeDefined & toBeUndefined matchers to test API (#9207)

## Summary

Added toBeDefined & toBeUndefined matchers to test API

## Test plan

Build app, add a test to the test suite and use .toBeDefined() in your
tests

Author: tshmieldev

apps/common-app/src/apps/reanimated/examples/RuntimeTests/ReJest/matchers/Matchers.ts

@@ -5,8 +5,10 @@ import {
   toBeCalledJSMatcher,
   toBeCalledMatcher,
   toBeCalledUIMatcher,
+  toBeDefined,
   toBeMatcher,
   toBeNullableMatcher,
+  toBeUndefined,
   toBeWithinRangeMatcher,
   toThrowMatcher,
 } from './rawMatchers';
@@ -44,7 +46,9 @@ export class Matchers {
   }
 
   public toBe = this.decorateMatcher(toBeMatcher);
+  public toBeDefined = this.decorateMatcher(toBeDefined);
   public toBeNullable = this.decorateMatcher(toBeNullableMatcher);
+  public toBeUndefined = this.decorateMatcher(toBeUndefined);
   public toBeWithinRange = this.decorateMatcher(toBeWithinRangeMatcher);
   public toThrow = this.decorateAsyncMatcher(toThrowMatcher);
   public toBeCalled = this.decorateMatcher(toBeCalledMatcher);

apps/common-app/src/apps/reanimated/examples/RuntimeTests/ReJest/matchers/rawMatchers.ts

@@ -55,6 +55,26 @@ export const toBeMatcher: Matcher<ToBeArgs> = (currentValue, negation, expectedV
   };
 };
 
+export const toBeDefined: Matcher<ToBeNullArgs> = (currentValue, negation) => {
+  const coloredExpected = green('defined');
+  const coloredReceived = red(currentValue);
+
+  return {
+    pass: currentValue !== undefined,
+    message: `Expected${negation ? ' NOT' : ''} ${coloredExpected} received ${coloredReceived}`,
+  };
+};
+
+export const toBeUndefined: Matcher<ToBeNullArgs> = (currentValue, negation) => {
+  const coloredExpected = green('undefined');
+  const coloredReceived = red(currentValue);
+
+  return {
+    pass: currentValue === undefined,
+    message: `Expected${negation ? ' NOT' : ''} ${coloredExpected} received ${coloredReceived}`,
+  };
+};
+
 export const toBeNullableMatcher: Matcher<ToBeNullArgs> = (currentValue, negation) => {
   const coloredExpected = green('nullable');
   const coloredReceived = red(currentValue);