run_test.sh script now mostly run java compilation and run java program for testing. In this commit we are compiling, running java test cases for gradle task, So we are removing the run_test.sh as it is unused now

Author: MohitMaliFtechiz

.github/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
         run: |
           ./gradlew assemble
 
-      - name: Genrate Source jar
+      - name: Generate Source jar
         run: |
           ./gradlew androidSourcesJar
 

lib/build.gradle

@@ -281,9 +281,21 @@ task renameLibkiwixSoFile(type: Copy) {
     }
 }
 
+task compileTestFile(type: Exec) {
+    workingDir "${projectDir}/src/test/"
+    commandLine 'javac', '-g', '-d', '.', '-s', '.', '-cp', 'junit-4.13.jar:' + buildDir.path +'/libs/*', 'test.java'
+}
+
+task runTests(type: Exec) {
+    workingDir "${projectDir}/src/test/"
+    dependsOn compileTestFile
+    commandLine 'java', '-Djava.library.path=' + buildDir.path, '-javaagent:jacoco-0.8.7/lib/jacocoagent.jar', '-cp', 'junit-4.13.jar:hamcrest-core-1.3.jar:' + buildDir.path +'/libs/*lib*.jar' + ':.', 'org.junit.runner.JUnitCore', 'test'
+}
+
 task createCodeCoverageReport(type: Exec) {
     workingDir "${projectDir}/src/test/"
-    commandLine 'sh', '-c', "bash 'run_test.sh' ${buildDir}/libs/*lib*.jar $buildDir"
+    dependsOn runTests
+    commandLine 'java', '-jar', 'jacoco-0.8.7/lib/jacococli.jar', 'report', 'jacoco.exec', '--classfiles', 'org/kiwix/libkiwix/', '--classfiles', 'org/kiwix/libzim/', '--html', '../../build/coverage-report', '--xml', 'coverage.xml'
 }
 
 task checkCurrentJavaVersion() {