diff --git a/tests/Unit/Currency/CurrencyAlpha3Test.php b/tests/Unit/Currency/CurrencyAlpha3Test.php
index 274b9cea..9e64783a 100644
--- a/tests/Unit/Currency/CurrencyAlpha3Test.php
+++ b/tests/Unit/Currency/CurrencyAlpha3Test.php
@@ -44,6 +44,22 @@ public function testAllCasesCanBeConvertedToCurrencyName(): void
         }
     }
 
+    /**
+     * @covers ::getSymbol
+     */
+    public function testAllCasesHaveAccessToSymbolOrNull(): void
+    {
+        $cases = CurrencyAlpha3::cases();
+        static::assertNotEmpty($cases);
+        foreach ($cases as $case) {
+            try {
+                $case->getSymbol();
+            } catch (TypeError) {
+                $this->fail(sprintf('Unable to retrieve symbol for %s', $case->name));
+            }
+        }
+    }
+
     /**
      * @covers ::lowerCaseValue
      */
diff --git a/tests/Unit/Currency/CurrencyNameTest.php b/tests/Unit/Currency/CurrencyNameTest.php
index eca33fe6..c83d37eb 100644
--- a/tests/Unit/Currency/CurrencyNameTest.php
+++ b/tests/Unit/Currency/CurrencyNameTest.php
@@ -28,6 +28,22 @@ public function testAllCasesCanBeConvertedToCurrencyNumeric(): void
         }
     }
 
+    /**
+     * @covers ::getSymbol
+     */
+    public function testAllCasesHaveAccessToSymbolOrNull(): void
+    {
+        $cases = CurrencyName::cases();
+        static::assertNotEmpty($cases);
+        foreach ($cases as $case) {
+            try {
+                $case->getSymbol();
+            } catch (TypeError) {
+                $this->fail(sprintf('Unable to retrieve symbol for %s', $case->name));
+            }
+        }
+    }
+
     /**
      * @covers ::toCurrencyAlpha3
      */
diff --git a/tests/Unit/Currency/CurrencyNumericTest.php b/tests/Unit/Currency/CurrencyNumericTest.php
index 49e1a1f4..c1e8367f 100644
--- a/tests/Unit/Currency/CurrencyNumericTest.php
+++ b/tests/Unit/Currency/CurrencyNumericTest.php
@@ -45,6 +45,22 @@ public function testAllCasesCanBeConvertedToCurrencyName(): void
         }
     }
 
+    /**
+     * @covers ::getSymbol
+     */
+    public function testAllCasesHaveAccessToSymbolOrNull(): void
+    {
+        $cases = CurrencyNumeric::cases();
+        static::assertNotEmpty($cases);
+        foreach ($cases as $case) {
+            try {
+                $case->getSymbol();
+            } catch (TypeError) {
+                $this->fail(sprintf('Unable to retrieve symbol for %s', $case->name));
+            }
+        }
+    }
+
     /**
      * @covers ::fromInt
      */
diff --git a/tests/Unit/Currency/CurrencySymbolTest.php b/tests/Unit/Currency/CurrencySymbolTest.php
new file mode 100644
index 00000000..87aef4b1
--- /dev/null
+++ b/tests/Unit/Currency/CurrencySymbolTest.php
@@ -0,0 +1,64 @@
+<?php
+declare(strict_types=1);
+
+namespace PrinsFrank\Standards\Tests\Unit\Currency;
+
+use PHPUnit\Framework\TestCase;
+use PrinsFrank\Standards\Currency\CurrencyAlpha3;
+use PrinsFrank\Standards\Currency\CurrencyName;
+use PrinsFrank\Standards\Currency\CurrencyNumeric;
+use TypeError;
+
+/**
+ * @coversDefaultClass \PrinsFrank\Standards\Currency\CurrencySymbol
+ */
+class CurrencySymbolTest extends TestCase
+{
+    /**
+     * @covers ::getSymbol
+     */
+    public function testAllAlpha3CasesHaveAccessToSymbolOrNull(): void
+    {
+        $cases = CurrencyAlpha3::cases();
+        static::assertNotEmpty($cases);
+        foreach ($cases as $case) {
+            try {
+                $case->getSymbol();
+            } catch (TypeError) {
+                $this->fail(sprintf('Unable to retrieve symbol for %s', $case->name));
+            }
+        }
+    }
+
+    /**
+     * @covers ::getSymbol
+     */
+    public function testAllNameCasesHaveAccessToSymbolOrNull(): void
+    {
+        $cases = CurrencyName::cases();
+        static::assertNotEmpty($cases);
+        foreach ($cases as $case) {
+            try {
+                $case->getSymbol();
+            } catch (TypeError) {
+                $this->fail(sprintf('Unable to retrieve symbol for %s', $case->name));
+            }
+        }
+    }
+
+    /**
+     * @covers ::getSymbol
+     */
+    public function testAllNumericCasesHaveAccessToSymbolOrNull(): void
+    {
+        $cases = CurrencyNumeric::cases();
+        static::assertNotEmpty($cases);
+        foreach ($cases as $case) {
+            try {
+                $case->getSymbol();
+            } catch (TypeError) {
+                $this->fail(sprintf('Unable to retrieve symbol for %s', $case->name));
+            }
+        }
+    }
+}