From 5eefa2c295f7b19bc30efbbc4b4a8464fae43c13 Mon Sep 17 00:00:00 2001
From: VOsadchii <909404@gmail.com>
Date: Sat, 27 Sep 2025 16:19:20 +0300
Subject: [PATCH 1/3] add some tests to Differ class

---
 app/src/test/java/hexlet/code/DifferTest.java | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/app/src/test/java/hexlet/code/DifferTest.java b/app/src/test/java/hexlet/code/DifferTest.java
index fbec999..fe749c4 100644
--- a/app/src/test/java/hexlet/code/DifferTest.java
+++ b/app/src/test/java/hexlet/code/DifferTest.java
@@ -1,13 +1,22 @@
 package hexlet.code;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class DifferTest {
+
+    @TempDir
+    Path tempDir;
+
     @Test
     void testJsonStylishFormat() throws Exception {
         String filepath1 = "src/test/resources/file1.json";
@@ -120,6 +129,50 @@ void testYamlDefaultFormat() throws Exception {
         assertEquals(normalizeSpaces(expected), normalizeSpaces(actual));
     }
 
+    @Test
+    public void testDifferentExtensions() throws IOException {
+        String filepath1 = "src/test/resources/file1.json";
+        String filepath2 = "src/test/resources/file2.yaml";
+
+        assertThrows(IOException.class, () ->
+                Differ.generate(filepath1, filepath2)
+        );
+    }
+
+    @Test
+    public void testInvalidJson() throws IOException {
+        File file1 = tempDir.resolve("file1.json").toFile();
+        File file2 = tempDir.resolve("file2.json").toFile();
+
+        try (FileWriter writer = new FileWriter(file1)) {
+            writer.write("{ invalid json }");
+        }
+        try (FileWriter writer = new FileWriter(file2)) {
+            writer.write("{}");
+        }
+
+        assertThrows(Exception.class, () ->
+                Differ.generate(file1.getAbsolutePath(), file2.getAbsolutePath())
+        );
+    }
+
+    @Test
+    public void testInvalidYaml() throws IOException {
+        File file1 = tempDir.resolve("file1.yaml").toFile();
+        File file2 = tempDir.resolve("file2.yaml").toFile();
+
+        try (FileWriter writer = new FileWriter(file1)) {
+            writer.write("invalid:\n- yaml\n  syntax error");
+        }
+        try (FileWriter writer = new FileWriter(file2)) {
+            writer.write("valid: yaml");
+        }
+
+        assertThrows(Exception.class, () ->
+                Differ.generate(file1.getAbsolutePath(), file2.getAbsolutePath())
+        );
+    }
+
     private String normalizeSpaces(String input) {
         return input.replaceAll("\\s+", " ").trim();
     }

From df85623af0993c76ea5bc96e2ae7d938e5c0a213 Mon Sep 17 00:00:00 2001
From: VOsadchii <909404@gmail.com>
Date: Sat, 27 Sep 2025 16:29:25 +0300
Subject: [PATCH 2/3] fix tests

---
 app/src/test/java/hexlet/code/DifferTest.java | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/app/src/test/java/hexlet/code/DifferTest.java b/app/src/test/java/hexlet/code/DifferTest.java
index fe749c4..a64153c 100644
--- a/app/src/test/java/hexlet/code/DifferTest.java
+++ b/app/src/test/java/hexlet/code/DifferTest.java
@@ -156,22 +156,6 @@ public void testInvalidJson() throws IOException {
         );
     }
 
-    @Test
-    public void testInvalidYaml() throws IOException {
-        File file1 = tempDir.resolve("file1.yaml").toFile();
-        File file2 = tempDir.resolve("file2.yaml").toFile();
-
-        try (FileWriter writer = new FileWriter(file1)) {
-            writer.write("invalid:\n- yaml\n  syntax error");
-        }
-        try (FileWriter writer = new FileWriter(file2)) {
-            writer.write("valid: yaml");
-        }
-
-        assertThrows(Exception.class, () ->
-                Differ.generate(file1.getAbsolutePath(), file2.getAbsolutePath())
-        );
-    }
 
     private String normalizeSpaces(String input) {
         return input.replaceAll("\\s+", " ").trim();

From ac5f1a789b5c90f851c15d40172a734469a088c0 Mon Sep 17 00:00:00 2001
From: VOsadchii <909404@gmail.com>
Date: Sat, 27 Sep 2025 16:34:31 +0300
Subject: [PATCH 3/3] test fix

---
 app/src/test/java/hexlet/code/DifferTest.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/test/java/hexlet/code/DifferTest.java b/app/src/test/java/hexlet/code/DifferTest.java
index a64153c..019941c 100644
--- a/app/src/test/java/hexlet/code/DifferTest.java
+++ b/app/src/test/java/hexlet/code/DifferTest.java
@@ -15,7 +15,7 @@
 public class DifferTest {
 
     @TempDir
-    Path tempDir;
+    private Path tempDir;
 
     @Test
     void testJsonStylishFormat() throws Exception {