use feed for robolectric, Fixes AB#3544225 (#3079)

use feed for robolectric


[AB#3544225](https://identitydivision.visualstudio.com/fac9d424-53d2-45c0-91b5-ef6ba7a6bf26/_workitems/edit/3544225)

Author: fadidurah

common/build.gradle

@@ -96,6 +96,9 @@ boolean newBrokerDiscoveryEnabledFlag = project.hasProperty("newBrokerDiscoveryE
 boolean trustDebugBrokerFlag = project.hasProperty("trustDebugBrokerFlag")
 boolean bypassRedirectUriCheck = project.hasProperty("bypassRedirectUriCheck")
 
+def robolectricRepoUsername = System.getenv("ENV_VSTS_MVN_CRED_USERNAME") != null ? System.getenv("ENV_VSTS_MVN_CRED_USERNAME") : project.findProperty("vstsUsername")
+def robolectricRepoPassword = System.getenv("ENV_VSTS_MVN_CRED_ACCESSTOKEN") != null ? System.getenv("ENV_VSTS_MVN_CRED_ACCESSTOKEN") : project.findProperty("vstsMavenAccessToken")
+
 android {
     compileSdk rootProject.ext.compileSdkVersion
     defaultConfig {
@@ -160,6 +163,11 @@ android {
         unitTests.all {
             exclude 'com/microsoft/identity/common/integration'
             exclude 'com/microsoft/identity/common/ropc'
+            if (robolectricRepoUsername?.toString()?.trim() && robolectricRepoPassword?.toString()?.trim()) {
+                it.systemProperty("robolectric.dependency.repo.url", "https://identitydivision.pkgs.visualstudio.com/_packaging/NewAndroid/maven/v1")
+                it.systemProperty("robolectric.dependency.repo.username", robolectricRepoUsername)
+                it.systemProperty("robolectric.dependency.repo.password", robolectricRepoPassword)
+            }
         }
     }