diff --git a/src/action-common.ts b/src/action-common.ts
index 5af58f08b..424a9181d 100644
--- a/src/action-common.ts
+++ b/src/action-common.ts
@@ -1,3 +1,4 @@
+import { ActionsEnv } from "./actions-util";
 import { Env } from "./environment";
 import { FeatureEnablement } from "./feature-flags";
 import { Logger } from "./logging";
@@ -12,6 +13,10 @@ export interface FeatureState {
     /** Information about environment variables. */
     env: Env;
   };
+  Actions: {
+    /** Access to Actions-related functionality. */
+    actions: ActionsEnv;
+  };
   FeatureFlags: {
     /** Information about enabled feature flags. */
     features: FeatureEnablement;
diff --git a/src/testing-utils.ts b/src/testing-utils.ts
index 64a62175a..2f8506ca3 100644
--- a/src/testing-utils.ts
+++ b/src/testing-utils.ts
@@ -11,7 +11,12 @@ import nock from "nock";
 import * as sinon from "sinon";
 
 import { ActionState, StateFeature } from "./action-common";
-import { ActionsEnv, ActionsEnvVars, getActionVersion } from "./actions-util";
+import {
+  ActionsEnv,
+  ActionsEnvVars,
+  getActionsEnv,
+  getActionVersion,
+} from "./actions-util";
 import { AnalysisKind } from "./analyses";
 import * as apiClient from "./api-client";
 import { GitHubApiDetails } from "./api-client";
@@ -190,7 +195,7 @@ export function getTestActionsEnv(): ActionsEnv {
 }
 
 /** For testing purposes, we make all available state features accessible in `TestEnv`. */
-type AllState = ["Logger", "Env", "FeatureFlags"];
+type AllState = ["Logger", "Env", "Actions", "FeatureFlags"];
 
 /**
  * Wraps a function that accepts an `ActionState` for testing in different environments.
@@ -218,6 +223,7 @@ export class TestEnv<
         : {
             logger: new RecordingLogger(),
             env: getTestEnv(),
+            actions: getActionsEnv(),
             features: createFeatures([]),
           };
   }
@@ -256,6 +262,12 @@ export class TestEnv<
     return result;
   }
 
+  public withActions(actions: ActionsEnv): TestEnv<Args, R, Fs> {
+    const result = this.clone();
+    result.state.actions = actions;
+    return result;
+  }
+
   call(): R {
     if (!this.args) {
       throw new Error("Trying to call function in TestEnv without arguments.");