This is an automated email from the ASF dual-hosted git repository.

pdallig pushed a commit to branch remove_truth
in repository https://gitbox.apache.org/repos/asf/zeppelin.git

commit dc14437933e892e59616decc1eb39e3239c7f85d
Author: Philipp Dallig <philipp.dal...@gmail.com>
AuthorDate: Fri Sep 17 16:23:19 2021 +0200

    Remove Google Truth to have uniform tests.
---
 zeppelin-zengine/pom.xml                           |  16 ---
 .../org/apache/zeppelin/search/SearchService.java  |  13 +-
 .../notebook/repo/GitNotebookRepoTest.java         | 136 +++++++++++----------
 .../notebook/repo/NotebookRepoSyncTest.java        |  14 +--
 .../apache/zeppelin/search/LuceneSearchTest.java   |  67 +++++-----
 5 files changed, 116 insertions(+), 130 deletions(-)

diff --git a/zeppelin-zengine/pom.xml b/zeppelin-zengine/pom.xml
index 114311f..f0aa0d5 100644
--- a/zeppelin-zengine/pom.xml
+++ b/zeppelin-zengine/pom.xml
@@ -40,9 +40,6 @@
     <frontend.maven.plugin.version>1.3</frontend.maven.plugin.version>
     <commons.vfs2.version>2.6.0</commons.vfs2.version>
     <eclipse.jgit.version>4.5.4.201711221230-r</eclipse.jgit.version>
-    <!--test library versions-->
-    <google.truth.version>0.27</google.truth.version>
-    <google.testing.nio.version>0.32.0-alpha</google.testing.nio.version>
   </properties>
 
   <dependencies>
@@ -233,19 +230,6 @@
     </dependency>
 
     <dependency>
-      <groupId>com.google.truth</groupId>
-      <artifactId>truth</artifactId>
-      <version>${google.truth.version}</version>
-      <scope>test</scope>
-      <exclusions>
-        <exclusion>
-          <groupId>com.google.guava</groupId>
-          <artifactId>guava</artifactId>
-        </exclusion>
-      </exclusions>
-    </dependency>
-
-    <dependency>
       <groupId>org.eclipse.jetty</groupId>
       <artifactId>jetty-server</artifactId>
       <version>${jetty.version}</version>
diff --git 
a/zeppelin-zengine/src/main/java/org/apache/zeppelin/search/SearchService.java 
b/zeppelin-zengine/src/main/java/org/apache/zeppelin/search/SearchService.java
index b0ffcd3..b4bd56e 100644
--- 
a/zeppelin-zengine/src/main/java/org/apache/zeppelin/search/SearchService.java
+++ 
b/zeppelin-zengine/src/main/java/org/apache/zeppelin/search/SearchService.java
@@ -47,7 +47,7 @@ public abstract class SearchService extends 
NoteEventAsyncListener {
    * Updates note index for the given note, only update index of note meta 
info,
    * such as id,name. Paragraph index will be done in method 
updateParagraphIndex.
    *
-   * @param note a Note to update index for
+   * @param noteId a NoteId to update index for
    * @throws IOException
    */
   public abstract void updateNoteIndex(String noteId);
@@ -55,11 +55,12 @@ public abstract class SearchService extends 
NoteEventAsyncListener {
   /**
    * Updates paragraph index for the given paragraph.
    *
-   * @param paragraph a Paragraph to update index for
+   * @param noteId a NoteId to update index for
+   * @param paragraphId a Paragraph to update index for
    * @throws IOException
    */
 
-  public abstract void updateParagraphIndex(String nodeId, String paragraphId);
+  public abstract void updateParagraphIndex(String noteId, String paragraphId);
 
   /**
    * Indexes the given note.
@@ -82,10 +83,10 @@ public abstract class SearchService extends 
NoteEventAsyncListener {
   public abstract void deleteNoteIndex(String noteId);
 
   /**
-   * Deletes doc for a given
+   * Deletes doc for a given NoteId and ParagraphId
    *
-   * @param noteId
-   * @param p
+   * @param noteId a NoteId to delete index for
+   * @param paragraphId a ParagraphId to delete index for
    * @throws IOException
    */
   public abstract void deleteParagraphIndex(String noteId, String paragraphId);
diff --git 
a/zeppelin-zengine/src/test/java/org/apache/zeppelin/notebook/repo/GitNotebookRepoTest.java
 
b/zeppelin-zengine/src/test/java/org/apache/zeppelin/notebook/repo/GitNotebookRepoTest.java
index aaad8a5..bb74178 100644
--- 
a/zeppelin-zengine/src/test/java/org/apache/zeppelin/notebook/repo/GitNotebookRepoTest.java
+++ 
b/zeppelin-zengine/src/test/java/org/apache/zeppelin/notebook/repo/GitNotebookRepoTest.java
@@ -17,7 +17,11 @@
 
 package org.apache.zeppelin.notebook.repo;
 
-import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.mock;
 
 import java.io.File;
@@ -25,7 +29,6 @@ import java.io.IOException;
 import java.util.List;
 import java.util.Map;
 
-import com.google.common.truth.Truth;
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.zeppelin.conf.ZeppelinConfiguration;
@@ -92,52 +95,52 @@ public class GitNotebookRepoTest {
   public void initNonemptyNotebookDir() throws IOException, GitAPIException {
     //given - .git does not exit
     File dotGit = new File(String.join(File.separator, notebooksDir, ".git"));
-    assertThat(dotGit.exists()).isEqualTo(false);
+    assertFalse(dotGit.exists());
 
     //when
     notebookRepo = new GitNotebookRepo(conf);
 
     //then
     Git git = notebookRepo.getGit();
-    Truth.assertThat(git).isNotNull();
+    assertNotNull(git);
 
-    assertThat(dotGit.exists()).isEqualTo(true);
-    assertThat(notebookRepo.list(null)).isNotEmpty();
+    assertTrue(dotGit.exists());
+    assertFalse(notebookRepo.list(null).isEmpty());
 
     List<DiffEntry> diff = git.diff().call();
     // no commit, diff isn't empty
-    Truth.assertThat(diff).isNotEmpty();
+    assertFalse(diff.isEmpty());
   }
 
   @Test
   public void showNotebookHistoryEmptyTest() throws GitAPIException, 
IOException {
     //given
     notebookRepo = new GitNotebookRepo(conf);
-    assertThat(notebookRepo.list(null)).isNotEmpty();
+    assertFalse(notebookRepo.list(null).isEmpty());
 
     //when
     List<Revision> testNotebookHistory = 
notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, null);
 
     //then
     //no initial commit, empty history
-    assertThat(testNotebookHistory).isEmpty();
+    assertTrue(testNotebookHistory.isEmpty());
   }
 
   @Test
   public void showNotebookHistoryMultipleNotesTest() throws IOException {
     //initial checks
     notebookRepo = new GitNotebookRepo(conf);
-    assertThat(notebookRepo.list(null)).isNotEmpty();
-    assertThat(containsNote(notebookRepo.list(null), TEST_NOTE_ID)).isTrue();
-    assertThat(containsNote(notebookRepo.list(null), TEST_NOTE_ID2)).isTrue();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null)).isEmpty();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID2, TEST_NOTE_PATH2, 
null)).isEmpty();
+    assertFalse(notebookRepo.list(null).isEmpty());
+    assertTrue(containsNote(notebookRepo.list(null), TEST_NOTE_ID));
+    assertTrue(containsNote(notebookRepo.list(null), TEST_NOTE_ID2));
+    assertTrue(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).isEmpty());
+    assertTrue(notebookRepo.revisionHistory(TEST_NOTE_ID2, TEST_NOTE_PATH2, 
null).isEmpty());
 
     //add commit to both notes
     notebookRepo.checkpoint(TEST_NOTE_ID, TEST_NOTE_PATH, "first commit, 
note1", null);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size()).isEqualTo(1);
+    assertEquals(1, notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size());
     notebookRepo.checkpoint(TEST_NOTE_ID2, TEST_NOTE_PATH2, "first commit, 
note2", null);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID2, TEST_NOTE_PATH2, 
null).size()).isEqualTo(1);
+    assertEquals(1, notebookRepo.revisionHistory(TEST_NOTE_ID2, 
TEST_NOTE_PATH2, null).size());
 
     //modify, save and checkpoint first note
     Note note = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, null);
@@ -148,12 +151,11 @@ public class GitNotebookRepoTest {
     p.setConfig(config);
     p.setText("%md note1 test text");
     notebookRepo.save(note, null);
-    assertThat(notebookRepo.checkpoint(TEST_NOTE_ID, TEST_NOTE_PATH, "second 
commit, note1", null)).isNotNull();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size()).isEqualTo(2);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID2, TEST_NOTE_PATH2, 
null).size()).isEqualTo(1);
-    assertThat(notebookRepo.checkpoint(TEST_NOTE_ID2, TEST_NOTE_PATH2, "first 
commit, note2", null))
-      .isEqualTo(Revision.EMPTY);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID2, TEST_NOTE_PATH2, 
null).size()).isEqualTo(1);
+    assertNotNull(notebookRepo.checkpoint(TEST_NOTE_ID, TEST_NOTE_PATH, 
"second commit, note1", null));
+    assertEquals(2, notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size());
+    assertEquals(1, notebookRepo.revisionHistory(TEST_NOTE_ID2, 
TEST_NOTE_PATH2, null).size());
+    assertEquals(Revision.EMPTY, notebookRepo.checkpoint(TEST_NOTE_ID2, 
TEST_NOTE_PATH2, "first commit, note2", null));
+    assertEquals(1, notebookRepo.revisionHistory(TEST_NOTE_ID2, 
TEST_NOTE_PATH2, null).size());
 
     //modify, save and checkpoint second note
     note = notebookRepo.get(TEST_NOTE_ID2, TEST_NOTE_PATH2, null);
@@ -164,22 +166,22 @@ public class GitNotebookRepoTest {
     p.setConfig(config);
     p.setText("%md note2 test text");
     notebookRepo.save(note, null);
-    assertThat(notebookRepo.checkpoint(TEST_NOTE_ID2, TEST_NOTE_PATH2, "second 
commit, note2", null)).isNotNull();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size()).isEqualTo(2);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID2, TEST_NOTE_PATH2, 
null).size()).isEqualTo(2);
+    assertNotNull(notebookRepo.checkpoint(TEST_NOTE_ID2, TEST_NOTE_PATH2, 
"second commit, note2", null));
+    assertEquals(2, notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size());
+    assertEquals(2, notebookRepo.revisionHistory(TEST_NOTE_ID2, 
TEST_NOTE_PATH2, null).size());
   }
 
   @Test
   public void addCheckpointTest() throws IOException, GitAPIException {
     // initial checks
     notebookRepo = new GitNotebookRepo(conf);
-    assertThat(notebookRepo.list(null)).isNotEmpty();
-    assertThat(containsNote(notebookRepo.list(null), TEST_NOTE_ID)).isTrue();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null)).isEmpty();
+    assertFalse(notebookRepo.list(null).isEmpty());
+    assertTrue(containsNote(notebookRepo.list(null), TEST_NOTE_ID));
+    assertTrue(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).isEmpty());
 
     notebookRepo.checkpoint(TEST_NOTE_ID, TEST_NOTE_PATH, "first commit", 
null);
     List<Revision> notebookHistoryBefore = 
notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, null);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null)).isNotEmpty();
+    assertFalse(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).isEmpty());
     int initialCount = notebookHistoryBefore.size();
 
     // add changes to note
@@ -197,7 +199,7 @@ public class GitNotebookRepoTest {
 
     // see if commit is added
     List<Revision> notebookHistoryAfter = 
notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, null);
-    assertThat(notebookHistoryAfter.size()).isEqualTo(initialCount + 1);
+    assertEquals(initialCount + 1, notebookHistoryAfter.size());
 
     int revCountBefore = 0;
     Iterable<RevCommit> revCommits = notebookRepo.getGit().log().call();
@@ -224,7 +226,7 @@ public class GitNotebookRepoTest {
     for (RevCommit revCommit : revCommits) {
       revCountAfter++;
     }
-    assertThat(revCountAfter).isEqualTo(revCountBefore);
+    assertEquals(revCountBefore, revCountAfter);
   }
 
   private boolean containsNote(Map<String, NoteInfo> notes, String noteId) {
@@ -240,13 +242,13 @@ public class GitNotebookRepoTest {
   public void getRevisionTest() throws IOException {
     // initial checks
     notebookRepo = new GitNotebookRepo(conf);
-    assertThat(notebookRepo.list(null)).isNotEmpty();
-    assertThat(containsNote(notebookRepo.list(null), TEST_NOTE_ID)).isTrue();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null)).isEmpty();
+    assertFalse(notebookRepo.list(null).isEmpty());
+    assertTrue(containsNote(notebookRepo.list(null), TEST_NOTE_ID));
+    assertTrue(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).isEmpty());
 
     // add first checkpoint
     Revision revision_1 = notebookRepo.checkpoint(TEST_NOTE_ID, 
TEST_NOTE_PATH, "first commit", null);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size()).isEqualTo(1);
+    assertEquals(1, notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size());
     int paragraphCount_1 = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).getParagraphs().size();
 
     // add paragraph and save
@@ -261,18 +263,18 @@ public class GitNotebookRepoTest {
 
     // second checkpoint
     notebookRepo.checkpoint(TEST_NOTE_ID, TEST_NOTE_PATH, "second commit", 
null);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size()).isEqualTo(2);
+    assertEquals(2, notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size());
     int paragraphCount_2 = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).getParagraphs().size();
-    assertThat(paragraphCount_2).isEqualTo(paragraphCount_1 + 1);
+    assertEquals(paragraphCount_1 + 1, paragraphCount_2);
 
     // get note from revision 1
     Note noteRevision_1 = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, 
revision_1.id, null);
-    
assertThat(noteRevision_1.getParagraphs().size()).isEqualTo(paragraphCount_1);
+    assertEquals(paragraphCount_1, noteRevision_1.getParagraphs().size());
 
     // get current note
     note = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, null);
     note.setInterpreterFactory(mock(InterpreterFactory.class));
-    assertThat(note.getParagraphs().size()).isEqualTo(paragraphCount_2);
+    assertEquals(paragraphCount_2, note.getParagraphs().size());
 
     // add one more paragraph and save
     Paragraph p2 = note.addNewParagraph(AuthenticationInfo.ANONYMOUS);
@@ -283,34 +285,34 @@ public class GitNotebookRepoTest {
     note = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, null);
     note.setInterpreterFactory(mock(InterpreterFactory.class));
     int paragraphCount_3 = note.getParagraphs().size();
-    assertThat(paragraphCount_3).isEqualTo(paragraphCount_2 + 1);
+    assertEquals(paragraphCount_2 + 1, paragraphCount_3);
 
     // get revision 1 again
     noteRevision_1 = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, 
revision_1.id, null);
-    
assertThat(noteRevision_1.getParagraphs().size()).isEqualTo(paragraphCount_1);
+    assertEquals(paragraphCount_1, noteRevision_1.getParagraphs().size());
 
     // check that note is unchanged
     note = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, null);
-    assertThat(note.getParagraphs().size()).isEqualTo(paragraphCount_3);
+    assertEquals(paragraphCount_3, note.getParagraphs().size());
   }
 
   @Test
   public void getRevisionFailTest() throws IOException {
     // initial checks
     notebookRepo = new GitNotebookRepo(conf);
-    assertThat(notebookRepo.list(null)).isNotEmpty();
-    assertThat(containsNote(notebookRepo.list(null), TEST_NOTE_ID)).isTrue();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null)).isEmpty();
+    assertFalse(notebookRepo.list(null).isEmpty());
+    assertTrue(containsNote(notebookRepo.list(null), TEST_NOTE_ID));
+    assertTrue(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).isEmpty());
 
     // add first checkpoint
     Revision revision_1 = notebookRepo.checkpoint(TEST_NOTE_ID, 
TEST_NOTE_PATH, "first commit", null);
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size()).isEqualTo(1);
+    assertEquals(1, notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size());
     int paragraphCount_1 = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).getParagraphs().size();
 
     // get current note
     Note note = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, null);
     note.setInterpreterFactory(mock(InterpreterFactory.class));
-    assertThat(note.getParagraphs().size()).isEqualTo(paragraphCount_1);
+    assertEquals(paragraphCount_1, note.getParagraphs().size());
 
     // add one more paragraph and save
     Paragraph p1 = note.addNewParagraph(AuthenticationInfo.ANONYMOUS);
@@ -323,26 +325,26 @@ public class GitNotebookRepoTest {
 
     // get note from revision 1
     Note noteRevision_1 = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, 
revision_1.id, null);
-    
assertThat(noteRevision_1.getParagraphs().size()).isEqualTo(paragraphCount_1);
+    assertEquals(paragraphCount_1, noteRevision_1.getParagraphs().size());
 
     // get current note
     note = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, null);
     note.setInterpreterFactory(mock(InterpreterFactory.class));
-    assertThat(note.getParagraphs().size()).isEqualTo(paragraphCount_2);
+    assertEquals(paragraphCount_2, note.getParagraphs().size());
 
     // test for absent revision
     Revision absentRevision = new Revision("absentId", StringUtils.EMPTY, 0);
     note = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, absentRevision.id, 
null);
-    assertThat(note).isNull();
+    assertNull(note);
   }
 
   @Test
   public void setRevisionTest() throws IOException {
     //create repo and check that note doesn't contain revisions
     notebookRepo = new GitNotebookRepo(conf);
-    assertThat(notebookRepo.list(null)).isNotEmpty();
-    assertThat(containsNote(notebookRepo.list(null), TEST_NOTE_ID)).isTrue();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null)).isEmpty();
+    assertFalse(notebookRepo.list(null).isEmpty());
+    assertTrue(containsNote(notebookRepo.list(null), TEST_NOTE_ID));
+    assertTrue(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).isEmpty());
 
     // get current note
     Note note = notebookRepo.get(TEST_NOTE_ID, TEST_NOTE_PATH, null);
@@ -353,8 +355,8 @@ public class GitNotebookRepoTest {
     // checkpoint revision1
     Revision revision1 = notebookRepo.checkpoint(TEST_NOTE_ID, TEST_NOTE_PATH, 
"set revision: first commit", null);
     //TODO(khalid): change to EMPTY after rebase
-    assertThat(revision1).isNotNull();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size()).isEqualTo(1);
+    assertNotNull(revision1);
+    assertEquals(1, notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size());
 
     // add one more paragraph and save
     Paragraph p1 = note.addNewParagraph(AuthenticationInfo.ANONYMOUS);
@@ -364,37 +366,37 @@ public class GitNotebookRepoTest {
     p1.setText("set revision sample text");
     notebookRepo.save(note, null);
     int paragraphCount_2 = note.getParagraphs().size();
-    assertThat(paragraphCount_2).isEqualTo(paragraphCount_1 + 1);
+    assertEquals(paragraphCount_1 + 1, paragraphCount_2);
     LOG.info("paragraph count after modification: {}", paragraphCount_2);
 
     // checkpoint revision2
     Revision revision2 = notebookRepo.checkpoint(TEST_NOTE_ID, TEST_NOTE_PATH, 
"set revision: second commit", null);
     //TODO(khalid): change to EMPTY after rebase
-    assertThat(revision2).isNotNull();
-    assertThat(notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size()).isEqualTo(2);
+    assertNotNull(revision2);
+    assertEquals(2, notebookRepo.revisionHistory(TEST_NOTE_ID, TEST_NOTE_PATH, 
null).size());
 
     // set note to revision1
     Note returnedNote = notebookRepo.setNoteRevision(note.getId(), 
note.getPath(), revision1.id, null);
-    assertThat(returnedNote).isNotNull();
-    
assertThat(returnedNote.getParagraphs().size()).isEqualTo(paragraphCount_1);
+    assertNotNull(returnedNote);
+    assertEquals(paragraphCount_1, returnedNote.getParagraphs().size());
 
     // check note from repo
     Note updatedNote = notebookRepo.get(note.getId(), note.getPath(), null);
-    assertThat(updatedNote).isNotNull();
-    assertThat(updatedNote.getParagraphs().size()).isEqualTo(paragraphCount_1);
+    assertNotNull(updatedNote);
+    assertEquals(paragraphCount_1, updatedNote.getParagraphs().size());
 
     // set back to revision2
     returnedNote = notebookRepo.setNoteRevision(note.getId(), note.getPath(), 
revision2.id, null);
-    assertThat(returnedNote).isNotNull();
-    
assertThat(returnedNote.getParagraphs().size()).isEqualTo(paragraphCount_2);
+    assertNotNull(returnedNote);
+    assertEquals(paragraphCount_2, returnedNote.getParagraphs().size());
 
     // check note from repo
     updatedNote = notebookRepo.get(note.getId(), note.getPath(), null);
-    assertThat(updatedNote).isNotNull();
-    assertThat(updatedNote.getParagraphs().size()).isEqualTo(paragraphCount_2);
+    assertNotNull(updatedNote);
+    assertEquals(paragraphCount_2, updatedNote.getParagraphs().size());
 
     // try failure case - set to invalid revision
     returnedNote = notebookRepo.setNoteRevision(note.getId(), note.getPath(), 
"nonexistent_id", null);
-    assertThat(returnedNote).isNull();
+    assertNull(returnedNote);
   }
 }
diff --git 
a/zeppelin-zengine/src/test/java/org/apache/zeppelin/notebook/repo/NotebookRepoSyncTest.java
 
b/zeppelin-zengine/src/test/java/org/apache/zeppelin/notebook/repo/NotebookRepoSyncTest.java
index c645919..18ed8b6 100644
--- 
a/zeppelin-zengine/src/test/java/org/apache/zeppelin/notebook/repo/NotebookRepoSyncTest.java
+++ 
b/zeppelin-zengine/src/test/java/org/apache/zeppelin/notebook/repo/NotebookRepoSyncTest.java
@@ -17,7 +17,6 @@
 
 package org.apache.zeppelin.notebook.repo;
 
-import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.mock;
@@ -307,13 +306,13 @@ public class NotebookRepoSyncTest {
     Notebook vNotebookSync = new Notebook(vConf, 
mock(AuthorizationService.class), vRepoSync, new NoteManager(vRepoSync, conf), 
factory, interpreterSettingManager, credentials, null);
 
     // one git versioned storage initialized
-    assertThat(vRepoSync.getRepoCount()).isEqualTo(1);
-    assertThat(vRepoSync.getRepo(0)).isInstanceOf(GitNotebookRepo.class);
+    assertEquals(1, vRepoSync.getRepoCount());
+    assertTrue(vRepoSync.getRepo(0) instanceof GitNotebookRepo);
 
     GitNotebookRepo gitRepo = (GitNotebookRepo) vRepoSync.getRepo(0);
 
     // no notes
-    assertThat(vRepoSync.list(anonymous).size()).isEqualTo(0);
+    assertEquals(0, vRepoSync.list(anonymous).size());
     // create note
     String noteIdTmp = vNotebookSync.createNote("/test", "test", anonymous);
     System.out.println(noteIdTmp);
@@ -321,15 +320,16 @@ public class NotebookRepoSyncTest {
       noteTmp -> {
         return noteTmp;
     });
-    assertThat(vRepoSync.list(anonymous).size()).isEqualTo(1);
+    assertEquals(1, vRepoSync.list(anonymous).size());
     System.out.println(note);
+
     NoteInfo noteInfo = vRepoSync.list(anonymous).values().iterator().next();
     String noteId = noteInfo.getId();
     String notePath = noteInfo.getPath();
     // first checkpoint
     vRepoSync.checkpoint(noteId, notePath, "checkpoint message", anonymous);
     int vCount = gitRepo.revisionHistory(noteId, notePath, anonymous).size();
-    assertThat(vCount).isEqualTo(1);
+    assertEquals(1, vCount);
 
     note.setInterpreterFactory(mock(InterpreterFactory.class));
     Paragraph p = note.addNewParagraph(AuthenticationInfo.ANONYMOUS);
@@ -341,7 +341,7 @@ public class NotebookRepoSyncTest {
     // save and checkpoint again
     vRepoSync.save(note, anonymous);
     vRepoSync.checkpoint(noteId, notePath, "checkpoint message 2", anonymous);
-    assertThat(gitRepo.revisionHistory(noteId, notePath, 
anonymous).size()).isEqualTo(vCount + 1);
+    assertEquals(vCount + 1, gitRepo.revisionHistory(noteId, notePath, 
anonymous).size());
     notebookRepoSync.remove(note.getId(), note.getPath(), anonymous);
   }
 
diff --git 
a/zeppelin-zengine/src/test/java/org/apache/zeppelin/search/LuceneSearchTest.java
 
b/zeppelin-zengine/src/test/java/org/apache/zeppelin/search/LuceneSearchTest.java
index fc14388..7f5ea61 100644
--- 
a/zeppelin-zengine/src/test/java/org/apache/zeppelin/search/LuceneSearchTest.java
+++ 
b/zeppelin-zengine/src/test/java/org/apache/zeppelin/search/LuceneSearchTest.java
@@ -15,13 +15,16 @@
  * limitations under the License.
  */
 package org.apache.zeppelin.search;
-
-import static com.google.common.truth.Truth.assertThat;
 import static org.apache.zeppelin.search.LuceneSearch.formatId;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
 
+
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
@@ -96,15 +99,13 @@ public class LuceneSearchTest {
     List<Map<String, String>> results = noteSearchService.query("all");
 
     // then
-    assertThat(results).isNotEmpty();
-    assertThat(results.size()).isEqualTo(1);
+    assertFalse(results.isEmpty());
+    assertEquals(1, results.size());
     notebook.processNote(note2Id,
       note2 -> {
-        assertThat(results.get(0))
-        .containsEntry("id", formatId(note2Id, note2.getLastParagraph()));
+        assertEquals(formatId(note2.getId(), note2.getLastParagraph()), 
results.get(0).get("id"));
         return null;
       });
-
   }
 
   @Test
@@ -118,9 +119,9 @@ public class LuceneSearchTest {
     List<Map<String, String>> results = noteSearchService.query("Notebook1");
 
     // then
-    assertThat(results).isNotEmpty();
-    assertThat(results.size()).isEqualTo(1);
-    assertThat(results.get(0)).containsEntry("id", note1Id);
+    assertFalse(results.isEmpty());
+    assertEquals(1, results.size());
+    assertEquals(note1Id, results.get(0).get("id"));
   }
 
   @Test
@@ -134,15 +135,15 @@ public class LuceneSearchTest {
     List<Map<String, String>> results = 
noteSearchService.query("testingTitleSearch");
 
     // then
-    assertThat(results).isNotEmpty();
-    assertThat(results.size()).isAtLeast(1);
+    assertFalse(results.isEmpty());
+    assertTrue(results.size() >= 1);
     int TitleHits = 0;
     for (Map<String, String> res : results) {
       if (res.get("header").contains("testingTitleSearch")) {
         TitleHits++;
       }
     }
-    assertThat(TitleHits).isAtLeast(1);
+    assertTrue(TitleHits >= 1);
   }
 
   @Test
@@ -155,12 +156,10 @@ public class LuceneSearchTest {
     // then
     notebook.processNote(note1Id,
       note1 -> {
-        assertThat(id.split("/")).asList() // key structure 
<noteId>/paragraph/<paragraphId>
-        .containsAllOf(
-          note1Id, "paragraph", note1.getLastParagraph().getId()); // 
LuceneSearch.PARAGRAPH
+        assertArrayEquals(id.split("/"),  // key structure 
<noteId>/paragraph/<paragraphId>
+            new String[]{note1.getId(), "paragraph", 
note1.getLastParagraph().getId()}); // LuceneSearch.PARAGRAPH
         return null;
       });
-
   }
 
   @Test // (expected=IllegalStateException.class)
@@ -169,7 +168,7 @@ public class LuceneSearchTest {
     // when
     List<Map<String, String>> result = noteSearchService.query("anything");
     // then
-    assertThat(result).isEmpty();
+    assertTrue(result.isEmpty());
     // assert logs were printed
     // "ERROR org.apache.zeppelin.search.SearchService:97 - Failed to open 
index dir RAMDirectory"
   }
@@ -193,10 +192,10 @@ public class LuceneSearchTest {
 
     // then
     List<Map<String, String>> results = noteSearchService.query("all");
-    assertThat(results).isEmpty();
+    assertTrue(results.isEmpty());
 
     results = noteSearchService.query("indeed");
-    assertThat(results).isNotEmpty();
+    assertFalse(results.isEmpty());
   }
 
   @Test
@@ -214,18 +213,18 @@ public class LuceneSearchTest {
     String note2Id = newNoteWithParagraphs("Notebook2", "not test", "not test 
at all");
     drainSearchEvents();
 
-    assertThat(resultForQuery("Notebook2")).isNotEmpty();
+    assertFalse(resultForQuery("Notebook2").isEmpty());
 
     // when
     noteSearchService.deleteNoteIndex(note2Id);
 
     // then
-    assertThat(noteSearchService.query("all")).isEmpty();
-    assertThat(resultForQuery("Notebook2")).isEmpty();
+    assertTrue(noteSearchService.query("all").isEmpty());
+    assertTrue(resultForQuery("Notebook2").isEmpty());
 
     List<Map<String, String>> results = resultForQuery("test");
-    assertThat(results).isNotEmpty();
-    assertThat(results.size()).isEqualTo(1);
+    assertFalse(results.isEmpty());
+    assertEquals(1, results.size());
   }
 
   @Test
@@ -235,7 +234,7 @@ public class LuceneSearchTest {
     String note2Id = newNoteWithParagraphs("Notebook2", "not test", "not test 
at all");
     drainSearchEvents();
 
-    assertThat(resultForQuery("test").size()).isEqualTo(3);
+    assertEquals(3, resultForQuery("test").size());
 
     // when
     notebook.processNote(note1Id,
@@ -249,15 +248,15 @@ public class LuceneSearchTest {
     drainSearchEvents();
 
     // then
-    assertThat(resultForQuery("Notebook1").size()).isEqualTo(1);
+    assertEquals(1, resultForQuery("Notebook1").size());
 
     List<Map<String, String>> results = resultForQuery("test");
-    assertThat(results).isNotEmpty();
-    assertThat(results.size()).isEqualTo(2);
+    assertFalse(results.isEmpty());
+    assertEquals(2, results.size());
 
     // does not include Notebook1's paragraph any more
     for (Map<String, String> result : results) {
-      assertThat(result.get("id").startsWith(note1Id)).isFalse();
+      assertFalse(result.get("id").startsWith(note1Id));
     }
   }
 
@@ -267,7 +266,7 @@ public class LuceneSearchTest {
     String note1Id = newNoteWithParagraph("Notebook1", "test");
     String note2Id = newNoteWithParagraphs("Notebook2", "not test", "not test 
at all");
     drainSearchEvents();
-    assertThat(resultForQuery("test").size()).isEqualTo(3);
+    assertEquals(3, resultForQuery("test").size());
 
     // when
     // use write lock, because name is overwritten
@@ -280,9 +279,9 @@ public class LuceneSearchTest {
     drainSearchEvents();
     Thread.sleep(1000);
     // then
-    assertThat(resultForQuery("Notebook1")).isEmpty();
-    assertThat(resultForQuery("NotebookN")).isNotEmpty();
-    assertThat(resultForQuery("NotebookN").size()).isEqualTo(1);
+    assertTrue(resultForQuery("Notebook1").isEmpty());
+    assertFalse(resultForQuery("NotebookN").isEmpty());
+    assertEquals(1, resultForQuery("NotebookN").size());
   }
 
   private List<Map<String, String>> resultForQuery(String q) {

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