diff --git a/src/arrayReverse.test.js b/src/arrayReverse.test.js
index cf8ac47..68adb4d 100644
--- a/src/arrayReverse.test.js
+++ b/src/arrayReverse.test.js
@@ -8,13 +8,44 @@ describe(`Function 'arrayReverse':`, () => {
   });
 
   it(`should return an array`, () => {
-
+    expect(arrayReverse(['Mate', 'Academy'])).toBeInstanceOf(Array);
+    expect(arrayReverse(['Mate', 'Academy'])).toHaveLength(2);
   });
 
   it(`should return an empty string
     if original array consists of an empty string`, () => {
-    expect(arrayReverse(['Mate', 'Academy'])).toEqual(['ymed', 'acAetaM']);
+    expect(arrayReverse(['', 'am'])).toEqual(['', 'ma']);
+    expect(arrayReverse(['am', ''])).toEqual(['ma', '']);
+    expect(arrayReverse(['', ''])).toEqual(['', '']);
+  });
+
+  it(`should does not change length of the strings`, () => {
+    const words = ['I', 'am', 'a', 'student!'];
+
+    expect(words[0]).toHaveLength(1);
+    expect(words[1]).toHaveLength(2);
+    expect(words[2]).toHaveLength(1);
+    expect(words[3]).toHaveLength(8);
+
+    const actual = arrayReverse(words);
+    const expected = ['!', 'tn', 'e', 'dutsamaI'];
+
+    expect(actual[0]).toHaveLength(1);
+    expect(actual[1]).toHaveLength(2);
+    expect(actual[2]).toHaveLength(1);
+    expect(actual[3]).toHaveLength(8);
+    expect(actual).toEqual(expected);
   });
 
-  // write more tests here
+  it(`should work properly with diff arrays`, () => {
+    expect(arrayReverse(['Hell0'])).toEqual(['0lleH']);
+
+    expect(arrayReverse(['Mate', 'Academy'])).toEqual(['ymed', 'acAetaM']);
+
+    expect(arrayReverse(['Hi', 'Mate', 'Academy']))
+      .toEqual(['ym', 'edac', 'AetaMiH']);
+
+    expect(arrayReverse(['I', 'am', 'a', 'student!']))
+      .toEqual(['!', 'tn', 'e', 'dutsamaI']);
+  });
 });