Adapt to renamed SSH and REST session names in test framework

Change-Id: Ie0b5c6e65b4d4289d7a211a23b1d48bbae9d66e7

src/test/java/com/googlesource/gerrit/plugins/cookbook/CookbookIT.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/cookbook/CookbookIT.java b/src/test/java/com/googlesource/gerrit/plugins/cookbook/CookbookIT.java
index 0d985c5..316c08e 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/cookbook/CookbookIT.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/cookbook/CookbookIT.java
@@ -25,15 +25,16 @@
 
   @Test
   public void printTest() throws Exception {
-    assertThat(sshSession.exec("cookbook print")).isEqualTo("Hello world!\n");
-    assertThat(sshSession.hasError()).isFalse();
+    assertThat(adminSshSession.exec("cookbook print"))
+        .isEqualTo("Hello world!\n");
+    assertThat(adminSshSession.hasError()).isFalse();
   }
 
   @Test
   public void revisionTest() throws Exception {
     createChange();
     RestResponse response =
-        adminSession.post("/changes/1/revisions/1/cookbook~hello-revision");
+        adminRestSession.post("/changes/1/revisions/1/cookbook~hello-revision");
     assertThat(response.getEntityContent())
         .contains("Hello admin from change 1, patch set 1!");
   }