[BAEL-18364] move spring-rest-*** articles - 1

json/src/test/java/com/baeldung/escape/JsonEscapeUnitTest.java

@@ -0,0 +1,36 @@
+package com.baeldung.escape;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class JsonEscapeUnitTest {
+
+    private JsonEscape testedInstance;
+    private static final String EXPECTED = "{\"message\":\"Hello \\\"World\\\"\"}";
+
+    @BeforeEach
+    void setUp() {
+        testedInstance = new JsonEscape();
+    }
+
+    @Test
+    void escapeJson() {
+        String actual = testedInstance.escapeJson("Hello \"World\"");
+        assertEquals(EXPECTED, actual);
+    }
+
+    @Test
+    void escapeGson() {
+        String actual = testedInstance.escapeGson("Hello \"World\"");
+        assertEquals(EXPECTED, actual);
+    }
+
+    @Test
+    void escapeJackson() throws JsonProcessingException {
+        String actual = testedInstance.escapeJackson("Hello \"World\"");
+        assertEquals(EXPECTED, actual);
+    }
+}