diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
index 9228bf9..93aa1a7 100644
--- a/__tests__/main.test.ts
+++ b/__tests__/main.test.ts
@@ -1,3 +1,17 @@
-describe('TODO - Add a test suite', () => {
-    it('TODO - Add a test', async () => {})
+import * as installer from '../src/installer'
+
+describe('installer tests', () => {
+    describe('version matching', () => {
+        describe('specific versions', () => {
+            it('Doesn\'t change the version when given a valid semver version', async () => {
+                expect(await installer.getJuliaVersion([], '1.0.5')).toEqual('1.0.5')
+                expect(await installer.getJuliaVersion(['v1.0.5', 'v1.0.6'], '1.0.5')).toEqual('1.0.5')
+                expect(await installer.getJuliaVersion(['v1.0.4', 'v1.0.5'], '1.0.5')).toEqual('1.0.5')
+                expect(await installer.getJuliaVersion(['v1.0.4'], '1.0.5')).toEqual('1.0.5')
+                expect(await installer.getJuliaVersion([], '1.3.0-alpha')).toEqual('1.3.0-alpha')
+                expect(await installer.getJuliaVersion(['v1.2.0', 'v1.3.0-alpha', 'v1.3.0-rc1', 'v1.3.0'], '1.3.0-alpha')).toEqual('1.3.0-alpha')
+                expect(await installer.getJuliaVersion([], '1.3.0-rc2')).toEqual('1.3.0-rc2')
+            })
+        })
+    })
 })