add getEnv to jest's type definition

Reviewed By: AGS-

Differential Revision: D14858004

fbshipit-source-id: 38ef0283f5605f6a13d179d8c68dd26c63adb910

flow/jest.js

@@ -1143,6 +1143,17 @@ declare function spyOn(value: mixed, method: string): Object;
 /** Holds all functions related to manipulating test runner */
 declare var jest: JestObjectType;
 
+/**
+ * https://jasmine.github.io/2.4/custom_reporter.html
+ */
+type JasmineReporter = {
+  jasmineStarted?: (suiteInfo: mixed) => void,
+  suiteStarted?: (result: mixed) => void,
+  specStarted?: (result: mixed) => void,
+  specDone?: (result: mixed) => void,
+  suiteDone?: (result: mixed) => void,
+};
+
 /**
  * The global Jasmine object, this is generally not exposed as the public API,
  * using features inside here could break in later versions of Jest.
@@ -1158,6 +1169,7 @@ declare var jasmine: {
     baseName: string,
     methodNames: Array<string>,
   ): {[methodName: string]: JestSpyType},
+  getEnv(): {addReporter: (jasmineReporter: JasmineReporter) => void},
   objectContaining(value: Object): Object,
   stringMatching(value: string): string,
 };