added json module

quarkus-json-service/src/test/java/ch/phoenixtechnologies/quarkus/commons/json/JsonServiceImplTest.java

@@ -0,0 +1,80 @@
+package ch.phoenixtechnologies.quarkus.commons.json;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import io.quarkus.test.junit.QuarkusTest;
+import jakarta.inject.Inject;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+@QuarkusTest
+class JsonServiceImplTest {
+
+    public static final TypeReference<List<TestRecord>> TYPE_REFERENCE = new TypeReference<>() {
+    };
+
+    record TestRecord(String name, int age) {
+    }
+
+    @Inject
+    JsonServiceImpl jsonService;
+
+    @Test
+    void toJson() {
+        var expected = "{\"name\":\"John Doe\",\"age\":30}";
+
+        var actual = jsonService.toJson(new TestRecord("John Doe", 30));
+
+        assertThat(actual)
+                .as("Json should match expected value")
+                .isEqualTo(expected);
+    }
+
+    @Test
+    void fromJsonWithClass() {
+        var json = "{\"name\":\"John Doe\",\"age\":30}";
+        var expected = new TestRecord("John Doe", 30);
+
+        var actual = jsonService.fromJson(json, TestRecord.class);
+
+        assertThat(actual)
+                .as("Deserialized object should match expected value")
+                .isEqualTo(expected);
+    }
+
+    @Test
+    void fromJsonWithClassWhenInputIsInvalid() {
+        var json = "{\"name\":\"John Doe\",\"age\":\"30\"";
+
+        assertThatThrownBy(() -> jsonService.fromJson(json, TestRecord.class))
+                .as("Should throw IllegalArgumentException when input is invalid")
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessage("Unable to read object of class [ch.phoenixtechnologies.quarkus.commons.json.JsonServiceImplTest$TestRecord] from json String: {\"name\":\"John Doe\",\"age\":\"30\"");
+    }
+
+    @Test
+    void fromJsonWithTypeReference() {
+        var json = "[{\"name\":\"John Doe\",\"age\":30},{\"name\":\"Jane Doe\",\"age\":25}]";
+        var expected = List.of(new TestRecord("John Doe", 30), new TestRecord("Jane Doe", 25));
+
+        var actual = jsonService.fromJson(json, TYPE_REFERENCE);
+
+        Assertions.assertThat(actual)
+                .as("Deserialized object should match expected value")
+                .isEqualTo(expected);
+    }
+
+    @Test
+    void fromJsonWithTypeReferenceWhenInputIsInvalid() {
+        var json = "{\"name\":\"John Doe\",\"age\":30},{\"name\":\"Jane Doe\",\"age\":\"25\"}";
+
+        assertThatThrownBy(() -> jsonService.fromJson(json, TYPE_REFERENCE))
+                .as("Should throw IllegalArgumentException when input is invalid")
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessage("Unable to read object of type [java.util.List<ch.phoenixtechnologies.quarkus.commons.json.JsonServiceImplTest$TestRecord>] from json String: {\"name\":\"John Doe\",\"age\":30},{\"name\":\"Jane Doe\",\"age\":\"25\"}");
+    }
+}