package com.baeldung.jsontojavaclass; import java.io.File; import java.io.IOException; import java.net.MalformedURLException; import java.util.Arrays; import org.junit.jupiter.api.Assertions; import org.junit.jupiter.api.Test; class JsonToJavaClassConversionUnitTest { private JsonToJavaClassConversion jsonToJavaConversion = new JsonToJavaClassConversion(); @Test void whenProvideInputJSON_thenGenerateJavaClass() throws MalformedURLException, IOException { String packageName = "com.baeldung.jsontojavaclass.pojo"; // load input JSON file String jsonPath = "src/test/resources/"; File inputJson = new File(jsonPath + "sample_input.json"); // create the local directory for generating the Java Class file String outputPath = "src/test/resources/"; File outputJavaClassDirectory = new File(outputPath); String javaClassName = "SamplePojo"; jsonToJavaConversion.convertJsonToJavaClass(inputJson.toURI() .toURL(), outputJavaClassDirectory, packageName, javaClassName); File outputJavaClassPath = new File(outputPath + packageName.replace(".", "/")); Assertions.assertTrue(Arrays.stream(outputJavaClassPath.listFiles()).peek(System.out::println).anyMatch(file -> (javaClassName+".java").equalsIgnoreCase(file.getName()))); } }