Add mocks to tests

src/Action.ts

@@ -1,5 +1,6 @@
 import { Inputs } from "./Inputs";
 import { Releases } from "./Releases";
+import { basename } from "path";
 
 export class Action {
     private inputs: Inputs
@@ -9,4 +10,22 @@ export class Action {
         this.inputs = inputs
         this.releases = releases
     }
+
+    async perform() {
+        const createResult = await this.releases.create(
+            this.inputs.tag,
+            this.inputs.body,
+            this.inputs.commit,
+            this.inputs.draft,
+            this.inputs.name)
+
+        if (this.inputs.artifact) {
+            await this.releases.uploadArtifact(
+                createResult.data.assets_url,
+                this.inputs.artifactContentLength,
+                this.inputs.artifactContentType,
+                this.inputs.artifact,
+                basename(this.inputs.artifact))
+        }
+    }
 }