update tests

.editorconfig

@@ -0,0 +1,13 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+insert_final_newline = true
+
+[{package,package-lock,tsconfig}.json]
+indent_size = 3
+
+[*.{ts,js}]
+indent_size = 4

.vscode/settings.json

@@ -1,7 +1,5 @@
 {
     "files.exclude": {
         "node_modules": true
-    },
-    "prettier.printWidth": 120,
-    "prettier.tabWidth": 4
-}
+    }
+}

CONTRIBUTING.md

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+# Contributing guidelines
+
+<h2 style="color: red;">DON'T</h2>
+
+### **Never create a pull request for master.**
+
+<h2 style="color: green;">DO</h2>
+
+- ### Checkout a release branch corresponding to the version you want to contribute to
+- ### Make your changes and create a pull request
+- ### Your request will be merged once it is reviewed
+
+## Thank you for reading

__tests__/functions.test.ts

@@ -0,0 +1,21 @@
+beforeEach(() => jest.resetModules());
+
+describe("getPreferredRef()", () => {
+    test("Should be heads", () => {
+        jest.doMock("src", () => ({
+            preferences: { preferBranchRelease: true },
+        }));
+        return import("src/functions").then(({ getPreferredRef }) =>
+            expect(getPreferredRef()).toBe("heads")
+        );
+    });
+
+    test("Should be tags", () => {
+        jest.doMock("src", () => ({
+            preferences: { preferBranchRelease: false },
+        }));
+        return import("src/functions").then(({ getPreferredRef }) =>
+            expect(getPreferredRef()).toBe("tags")
+        );
+    });
+});

__tests__/preferences.test.ts

@@ -0,0 +1,36 @@
+beforeEach(() => jest.resetModules());
+
+describe("preferences.publishLatestTag", () => {
+    it("Should have been set to false", () =>
+        import("src").then(({ preferences }) =>
+            expect(preferences.publishLatestTag).toBe(false)
+        ));
+
+    it("Should have been set to true when deprecated input is true", () => {
+        process.env.INPUT_PUBLISH_LATEST = "true";
+        return import("src").then(({ preferences }) =>
+            expect(preferences.publishLatestTag).toBe(true)
+        );
+    });
+
+    it("Should have been set to true when input is true", () => {
+        process.env.INPUT_PUBLISH_LATEST_TAG = "true";
+        return import("src").then(({ preferences }) =>
+            expect(preferences.publishLatestTag).toBe(true)
+        );
+    });
+});
+
+describe("preferences.preferBranchRelease", () => {
+    it("Should have been set to false", () =>
+        import("src").then(({ preferences }) =>
+            expect(preferences.preferBranchRelease).toBe(false)
+        ));
+
+    it("Should have been set to true when input is true", () => {
+        process.env.INPUT_PREFER_BRANCH_RELEASES = "true";
+        return import("src").then(({ preferences }) =>
+            expect(preferences.preferBranchRelease).toBe(true)
+        );
+    });
+});

jest.config.js

@@ -0,0 +1,8 @@
+// https://kulshekhar.github.io/ts-jest/user/config/
+module.exports = {
+    preset: "ts-jest",
+    testEnvironment: "node",
+    modulePaths: ["<rootDir>/"],
+    verbose: true,
+    globalSetup: "<rootDir>/test-setup.ts",
+};