chore: enabling ut coverege check (#1368)

* chore: enabling ut coverege check
* chore: sonar cloud settings
* set current limit

.github/workflows/sonar.yaml

@@ -0,0 +1,45 @@
+name: SonarCloud
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    types: [opened, synchronize, reopened]
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
+    - name: Set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        java-version: 17
+        distribution: temurin
+    - name: Cache SonarCloud packages
+      uses: actions/cache@v3
+      with:
+        path: ~/.sonar/cache
+        key: ${{ runner.os }}-sonar
+        restore-keys: ${{ runner.os }}-sonar
+    - name: Cache Maven packages
+      uses: actions/cache@v3
+      with:
+        path: ~/.m2
+        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
+        restore-keys: ${{ runner.os }}-m2
+    - name: Build and analyze for full test coverage
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any
+        SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+      run: |
+        mvn -B verify -Dcheckstyle.skip \
+            -DenableFullTestCoverage \
+            -Dsonar.coverage.jacoco.xmlReportPaths=oauth2_http/target/site/jacoco/jacoco.xml \
+            org.sonarsource.scanner.maven:sonar-maven-plugin:sonar \
+            -Pcoverage \
+            -Dsonar.projectKey=googleapis_google-auth-library-java \
+            -Dsonar.organization=googleapis \
+            -Dsonar.host.url=https://sonarcloud.io

oauth2_http/pom.xml

@@ -183,6 +183,33 @@
           <reportNameSuffix>sponge_log</reportNameSuffix>
         </configuration>
       </plugin>
+      <plugin>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+        <version>0.8.11</version>
+        <executions>
+          <execution>
+            <id>jacoco-check</id>
+            <goals>
+              <goal>check</goal>
+            </goals>
+            <configuration>
+              <rules>
+                <rule>
+                  <element>BUNDLE</element>
+                  <limits>
+                    <limit>
+                      <counter>LINE</counter>
+                      <value>COVEREDRATIO</value>
+                      <minimum>0.910</minimum>
+                    </limit>
+                  </limits>
+                </rule>
+              </rules>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>