Migrate from `Truth8` to `Truth`, and restore static imports.

This removes the qualified `assertThat` calls that I'd introduced in
3f2a11b5a25774b30b7094108343578746929256: As of Truth 1.4.2, it's safe
to use static import again (once you migrate off `Truth8`).

Change-Id: Ib86c5e1193e2f1e2019fee906b4aa8cc05cbcc89
Reviewed-on: https://gerrit-review.googlesource.com/c/plugins/code-owners/+/413677
Tested-by: Zuul <zuul-63@gerritcodereview-ci.iam.gserviceaccount.com>
Reviewed-by: Chris Poucet <poucet@google.com>
diff --git a/javatests/com/google/gerrit/plugins/codeowners/acceptance/testsuite/CodeOwnerConfigOperationsImplTest.java b/javatests/com/google/gerrit/plugins/codeowners/acceptance/testsuite/CodeOwnerConfigOperationsImplTest.java
index 85da5bd..7d41dbc 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/acceptance/testsuite/CodeOwnerConfigOperationsImplTest.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/acceptance/testsuite/CodeOwnerConfigOperationsImplTest.java
@@ -20,7 +20,6 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
-import com.google.common.truth.Truth8;
 import com.google.gerrit.entities.BranchNameKey;
 import com.google.gerrit.entities.Project;
 import com.google.gerrit.entities.RefNames;
@@ -176,7 +175,7 @@
             .folderPath(folderPath)
             .addCodeOwnerEmail(admin.email())
             .create();
-    Truth8.assertThat(codeOwnerConfigKey.folderPath()).isEqualTo(Path.of(folderPath));
+    assertThat(codeOwnerConfigKey.folderPath()).isEqualTo(Path.of(folderPath));
     assertThat(getCodeOwnerConfigFromServer(codeOwnerConfigKey))
         .hasCodeOwnerSetsThat()
         .onlyElement()
diff --git a/javatests/com/google/gerrit/plugins/codeowners/backend/AbstractFileBasedCodeOwnerBackendTest.java b/javatests/com/google/gerrit/plugins/codeowners/backend/AbstractFileBasedCodeOwnerBackendTest.java
index 7731055..5281391 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/backend/AbstractFileBasedCodeOwnerBackendTest.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/backend/AbstractFileBasedCodeOwnerBackendTest.java
@@ -18,7 +18,6 @@
 import static com.google.gerrit.plugins.codeowners.testing.CodeOwnerConfigSubject.assertThatOptional;
 import static com.google.gerrit.testing.GerritJUnit.assertThrows;
 
-import com.google.common.truth.Truth8;
 import com.google.gerrit.acceptance.config.GerritConfig;
 import com.google.gerrit.common.Nullable;
 import com.google.gerrit.entities.BranchNameKey;
@@ -476,7 +475,7 @@
   @Test
   public void getFilePathForCodeOwnerConfigKeyWithoutFileName() throws Exception {
     CodeOwnerConfig.Key codeOwnerConfigKey = CodeOwnerConfig.Key.create(project, "master", "/");
-    Truth8.assertThat(codeOwnerBackend.getFilePath(codeOwnerConfigKey))
+    assertThat(codeOwnerBackend.getFilePath(codeOwnerConfigKey))
         .isEqualTo(Path.of(codeOwnerConfigKey.folderPath() + getFileName()));
   }
 
@@ -484,7 +483,7 @@
   public void getFilePathForCodeOwnerConfigKeyWithFileName() throws Exception {
     CodeOwnerConfig.Key codeOwnerConfigKey =
         CodeOwnerConfig.Key.create(project, "master", "/", getFileName() + "_foo_bar");
-    Truth8.assertThat(codeOwnerBackend.getFilePath(codeOwnerConfigKey))
+    assertThat(codeOwnerBackend.getFilePath(codeOwnerConfigKey))
         .isEqualTo(Path.of(codeOwnerConfigKey.folderPath() + codeOwnerConfigKey.fileName().get()));
   }
 
diff --git a/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigReferenceTest.java b/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigReferenceTest.java
index f82b4cf..8b7141f 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigReferenceTest.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigReferenceTest.java
@@ -19,7 +19,6 @@
 import static com.google.common.truth.Truth.assertWithMessage;
 import static com.google.gerrit.testing.GerritJUnit.assertThrows;
 
-import com.google.common.truth.Truth8;
 import com.google.gerrit.plugins.codeowners.acceptance.AbstractCodeOwnersTest;
 import java.nio.file.Path;
 import java.util.Optional;
@@ -65,7 +64,7 @@
   public void relativeFilePathCanBeSpecified() throws Exception {
     Path path =
         CodeOwnerConfigReference.create(CodeOwnerConfigImportMode.ALL, "foo/OWNERS").filePath();
-    Truth8.assertThat(path).isEqualTo(Path.of("foo/OWNERS"));
+    assertThat(path).isEqualTo(Path.of("foo/OWNERS"));
     assertThat(path.isAbsolute()).isFalse();
   }
 }
diff --git a/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigTest.java b/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigTest.java
index 764a576..84b6da9 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigTest.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/backend/CodeOwnerConfigTest.java
@@ -17,7 +17,6 @@
 import static com.google.common.truth.Truth.assertThat;
 import static com.google.gerrit.testing.GerritJUnit.assertThrows;
 
-import com.google.common.truth.Truth8;
 import com.google.gerrit.entities.BranchNameKey;
 import com.google.gerrit.entities.Project;
 import com.google.gerrit.entities.RefNames;
@@ -87,8 +86,7 @@
     String folderPath = "/foo/bar/";
     CodeOwnerConfig.Key codeOwnerConfigKey =
         CodeOwnerConfig.Key.create(Project.nameKey("project"), "master", folderPath);
-    Truth8.assertThat(codeOwnerConfigKey.filePath("OWNERS"))
-        .isEqualTo(Path.of(folderPath, "OWNERS"));
+    assertThat(codeOwnerConfigKey.filePath("OWNERS")).isEqualTo(Path.of(folderPath, "OWNERS"));
   }
 
   @Test
@@ -98,7 +96,7 @@
     CodeOwnerConfig.Key codeOwnerConfigKey =
         CodeOwnerConfig.Key.create(
             Project.nameKey("project"), "master", folderPath, customFileName);
-    Truth8.assertThat(codeOwnerConfigKey.filePath("OWNERS"))
+    assertThat(codeOwnerConfigKey.filePath("OWNERS"))
         .isEqualTo(Path.of(folderPath, customFileName));
   }
 
@@ -141,7 +139,7 @@
                 TEST_REVISION)
             .build();
     Path relativizedPath = codeOwnerConfig.relativize(Path.of("/foo/bar/baz.md"));
-    Truth8.assertThat(relativizedPath).isEqualTo(Path.of("baz.md"));
+    assertThat(relativizedPath).isEqualTo(Path.of("baz.md"));
   }
 
   private static CodeOwnerConfig.Builder createCodeOwnerBuilder() {
diff --git a/javatests/com/google/gerrit/plugins/codeowners/util/JgitPathTest.java b/javatests/com/google/gerrit/plugins/codeowners/util/JgitPathTest.java
index 9571146..75f60be 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/util/JgitPathTest.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/util/JgitPathTest.java
@@ -17,7 +17,6 @@
 import static com.google.common.truth.Truth.assertThat;
 import static com.google.gerrit.testing.GerritJUnit.assertThrows;
 
-import com.google.common.truth.Truth8;
 import com.google.gerrit.plugins.codeowners.acceptance.AbstractCodeOwnersTest;
 import java.nio.file.Path;
 import org.junit.Test;
@@ -52,7 +51,7 @@
 
   @Test
   public void getPathAsAbsolutePath() throws Exception {
-    Truth8.assertThat(JgitPath.of("foo/bar/OWNERS").getAsAbsolutePath())
+    assertThat(JgitPath.of("foo/bar/OWNERS").getAsAbsolutePath())
         .isEqualTo(Path.of("/foo/bar/OWNERS"));
   }