Adds the support of multiple reports formats

src/main/java/io/github/ktestify/config/FrameworkConfig.java

@@ -16,9 +16,11 @@
 package io.github.ktestify.config;
 
 import com.typesafe.config.Config;
+import com.typesafe.config.ConfigValueType;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.time.Duration;
+import java.util.List;
 import java.util.Optional;
 import lombok.Getter;
 
@@ -53,7 +55,7 @@ public final class FrameworkConfig {
 
     // Reporting
     private final boolean enableReporting;
-    private final String reportFormat;
+    private final List<String> reportFormats;
     private final String reportOutputDirectory;
 
     FrameworkConfig(Config config) {
@@ -81,10 +83,27 @@ public final class FrameworkConfig {
         // Reporting
         Config reportConfig = config.getConfig("reporting");
         this.enableReporting = reportConfig.getBoolean("enabled");
-        this.reportFormat = reportConfig.getString("format");
+        this.reportFormats = readReportFormats(reportConfig);
         this.reportOutputDirectory = reportConfig.getString("output");
     }
 
+    /**
+     * Reads the configured report formats.
+     *
+     * <p>{@code ktestify.framework.reporting.format} accepts either a single string ({@code format = "html"}) or an
+     * array of strings ({@code format = ["html", "json"]}). A single string is wrapped into a one-element list so
+     * existing configurations keep working.
+     *
+     * @param reportConfig the reporting config section
+     * @return the configured report formats, never null
+     */
+    private static List<String> readReportFormats(Config reportConfig) {
+        if (reportConfig.getValue("format").valueType() == ConfigValueType.STRING) {
+            return List.of(reportConfig.getString("format"));
+        }
+        return List.copyOf(reportConfig.getStringList("format"));
+    }
+
     private Optional<String> getOptionalString(Config config, String path) {
         if (config.hasPath(path) && !config.getIsNull(path)) {
             String value = config.getString(path);

src/main/resources/application.conf.template

@@ -89,7 +89,8 @@ ktestify {
     # Reporting settings
     reporting {
       enabled = true
-      format = "html"
+      # One or more report formats: html, json, pretty
+      format = ["html"]
       output = "target/test-output"
     }
   }

src/main/resources/reference.conf

@@ -160,8 +160,8 @@ ktestify {
     # Reporting settings
     reporting {
       enabled = true
-      # Format: html, json, cucumber
-      format = "html"
+      # Report formats: html, json, pretty. Single value or array, e.g. ["html", "json"]
+      format = ["html"]
       # Directory for test output/reports
       output = "src/target/reports/report.html"
       output = ${?KTESTIFY_OUTPUT_DIR}

src/test/java/io/github/ktestify/config/FrameworkConfigTest.java

@@ -20,11 +20,8 @@
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.time.Duration;
-import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.DisplayName;
-import org.junit.jupiter.api.Nested;
-import org.junit.jupiter.api.Test;
+import java.util.List;
+import org.junit.jupiter.api.*;
 
 /**
  * Comprehensive unit tests for FrameworkConfig. Tests all getters, timeout conversions, path resolution, and edge
@@ -342,9 +339,9 @@ void shouldGetEnableReporting() {
         }
 
         @Test
-        @DisplayName("Should get report format")
-        void shouldGetReportFormat() {
-            assertEquals("html", frameworkConfig.getReportFormat());
+        @DisplayName("Should get default report formats")
+        void shouldGetDefaultReportFormats() {
+            assertEquals(List.of("html"), frameworkConfig.getReportFormats());
         }
 
         @Test
@@ -360,16 +357,36 @@ void shouldHandleDisabledReporting() {
         @Test
         @DisplayName("Should handle different report formats")
         void shouldHandleDifferentReportFormats() {
-            String[] formats = {"html", "json", "cucumber"};
+            String[] formats = {"html", "json", "pretty"};
 
             for (String format : formats) {
                 KtestifyConfig config = ConfigBuilder.create()
                         .set("ktestify.framework.reporting.format", format)
                         .build();
 
-                assertEquals(format, config.getFramework().getReportFormat());
+                assertEquals(List.of(format), config.getFramework().getReportFormats());
             }
         }
+
+        @Test
+        @DisplayName("Should accept an array of report formats")
+        void shouldAcceptArrayOfReportFormats() {
+            KtestifyConfig config = ConfigBuilder.create()
+                    .set("ktestify.framework.reporting.format", List.of("html", "json"))
+                    .build();
+
+            assertEquals(List.of("html", "json"), config.getFramework().getReportFormats());
+        }
+
+        @Test
+        @DisplayName("Should handle an empty array of report formats")
+        void shouldHandleEmptyArrayOfReportFormats() {
+            KtestifyConfig config = ConfigBuilder.create()
+                    .set("ktestify.framework.reporting.format", List.of())
+                    .build();
+
+            assertTrue(config.getFramework().getReportFormats().isEmpty());
+        }
     }
 
     // ==========================================