Add tests

Author: PythonCoderAS

package-lock.json

@@ -28,11 +28,9 @@
   },
   "devDependencies": {
     "@types/chai": "^4.3.1",
-    "@types/chai-as-promised": "^7.1.5",
     "@types/mocha": "^9.1.1",
     "@types/node": "^18.0.0",
     "chai": "^4.3.6",
-    "chai-as-promised": "^7.1.1",
     "eslint": "^8.19.0",
     "eslint-config-prettier": "^8.5.0",
     "eslint-config-pythoncoderas-combo": "^1.1.2",

package.json

@@ -0,0 +1,45 @@
+import { expect } from "chai";
+import getToken from "../src";
+
+const starterEnvVars = process.env;
+
+describe("get-github-token tests", () => {
+  beforeEach("reset environment variables", () => {
+    process.env = starterEnvVars;
+  })
+
+  it("should find token from environment variable", () => {
+    process.env["GITHUB_TOKEN"] = "token";
+    expect(getToken()).to.equal("token");
+  });
+
+  it("should find token from environment variable and explicitly nullish param", () => {
+    process.env["GITHUB_TOKEN"] = "token";
+    expect(getToken(undefined)).to.equal("token");
+    expect(getToken(null)).to.equal("token");
+  });
+
+  it("should find token from environment variable and alternate name", () => {
+    process.env["TEST_TOKEN"] = "token";
+    expect(getToken(undefined, "TEST_TOKEN")).to.equal("token");
+    expect(getToken(null, "TEST_TOKEN")).to.equal("token");
+  });
+
+  it("should find token from command line argument", () => {
+    expect(getToken("token")).to.equal("token");
+  })
+
+  it("should find token from command line argument and alternate name", () => {
+    expect(getToken("token", "TEST_TOKEN")).to.equal("token");
+  })
+
+  it("should find token from command line argument even with conflicting environment variable", () => {
+    process.env["GITHUB_TOKEN"] = "token2";
+    expect(getToken("token")).to.equal("token");
+  })
+
+  it("should find token from command line argument even with conflicting environment variable and alternate name", () => {
+    process.env["TEST_TOKEN"] = "token2";
+    expect(getToken("token", "TEST_TOKEN")).to.equal("token");
+  })
+})