diff --git a/src/MultiavatarTest.php b/src/MultiavatarTest.php
index 49a82dd..9c4b7d9 100644
--- a/src/MultiavatarTest.php
+++ b/src/MultiavatarTest.php
@@ -61,12 +61,23 @@ public function it_will_return_the_same_svg_with_a_numeric_or_string_part(): voi
     /** @test */
     public function it_will_return_the_same_svg_with_a_case_insensitive_theme(): void
     {
-        $svgLowerTheme = ($this->multiavatar)('foobar', ['ver' => ['theme' => 'a']]);
-        $svgUpperTheme = ($this->multiavatar)('foobar', ['ver' => ['theme' => 'A']]);
+        $svgLowerTheme = ($this->multiavatar)('foobar', ['ver' => ['part' => 5, 'theme' => 'A']]);
+        $svgUpperTheme = ($this->multiavatar)('foobar', ['ver' => ['part' => '05', 'theme' => 'a']]);
 
         self::assertSame($svgLowerTheme, $svgUpperTheme);
     }
 
+    /** @test */
+    public function it_will_return_the_same_svg_if_the_ver_is_fully_setting_independently_of_the_avatar_id_value(): void
+    {
+        $options = ['ver' => ['theme' => 'A', 'part' => 3]];
+
+        $svgWithFixedVer1 = ($this->multiavatar)('first-avatar', $options);
+        $svgWithFixedVer2 = ($this->multiavatar)('second-avatar', $options);
+
+        self::assertSame($svgWithFixedVer1, $svgWithFixedVer2);
+    }
+
     /** @test */
     public function it_will_return_the_same_svg_with_sans_env_truthy_values(): void
     {
@@ -98,6 +109,15 @@ public function it_will_return_different_svg_with_sans_env_values(): void
         self::assertNotSame($svgSansEnvFalse, $svgSansEnvTrue);
     }
 
+    /** @test */
+    public function it_will_return_the_same_svg_with_avatar_id_numeric_or_string(): void
+    {
+        $svgAvatarIdIsString = ($this->multiavatar)('1234567890');
+        $svgAvatarIdIsNumeric = ($this->multiavatar)(1234567890);
+
+        self::assertSame($svgAvatarIdIsNumeric, $svgAvatarIdIsString);
+    }
+
     /**
      * @test
      * @dataProvider getEmptySvgProvider