diff --git a/packages/type-utils/tests/getDeclaration.test.ts b/packages/type-utils/tests/getDeclaration.test.ts
new file mode 100644
index 000000000000..a7af315b6b28
--- /dev/null
+++ b/packages/type-utils/tests/getDeclaration.test.ts
@@ -0,0 +1,55 @@
+import type { TSESTree } from '@typescript-eslint/types';
+import type { ParserServicesWithTypeInformation } from '@typescript-eslint/typescript-estree';
+import type * as ts from 'typescript';
+
+import { getDeclaration } from '../src';
+
+const node = {} as TSESTree.Node;
+
+const mockSymbol = (declarations?: ts.Declaration[]): ts.Symbol => {
+  return {
+    getDeclarations: () => declarations,
+  } as ts.Symbol;
+};
+
+const mockServices = (
+  symbol?: ts.Symbol,
+): ParserServicesWithTypeInformation => {
+  return {
+    getSymbolAtLocation: (_: TSESTree.Node) => symbol,
+  } as ParserServicesWithTypeInformation;
+};
+
+const mockDeclaration = (): ts.Declaration => {
+  return {} as ts.Declaration;
+};
+
+describe('getDeclaration', () => {
+  describe('when symbol does not exist', () => {
+    it('returns null', () => {
+      const services = mockServices();
+
+      expect(getDeclaration(services, node)).toBeNull();
+    });
+  });
+
+  describe('when declarations do not exist', () => {
+    it('returns null', () => {
+      const symbol = mockSymbol();
+      const services = mockServices(symbol);
+
+      expect(getDeclaration(services, node)).toBeNull();
+    });
+  });
+
+  describe('when declarations exist', () => {
+    it('returns the first declaration', () => {
+      const declaration1 = mockDeclaration();
+      const declaration2 = mockDeclaration();
+      const symbol = mockSymbol([declaration1, declaration2]);
+      const services = mockServices(symbol);
+
+      expect(getDeclaration(services, node)).toBe(declaration1);
+    });
+  });
+});