test: reimplement unit testing (#229)

* test: add test for `getInputs` function

* ci(test): add `test-package` job

src/inputs.test.ts

@@ -0,0 +1,128 @@
+import { jest } from "@jest/globals";
+
+jest.unstable_mockModule("@actions/core", () => ({
+  getBooleanInput: jest.fn(),
+  getInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+}));
+
+describe("get action inputs", () => {
+  describe("with default values", () => {
+    beforeEach(async () => {
+      const { getBooleanInput, getInput, getMultilineInput } = await import(
+        "@actions/core"
+      );
+
+      jest.mocked(getBooleanInput).mockReturnValue(false);
+      jest.mocked(getInput).mockReturnValue("");
+      jest.mocked(getMultilineInput).mockReturnValue([]);
+    });
+
+    it("should get the action inputs", async () => {
+      const { getInputs } = await import("./inputs.js");
+
+      const inputs = getInputs();
+
+      expect(inputs).toStrictEqual({
+        sourceDir: ".",
+        buildDir: "build",
+        generator: "",
+        cCompiler: "",
+        cxxCompiler: "",
+        cFlags: "",
+        cxxFlags: "",
+        options: [],
+        args: [],
+        runBuild: false,
+        buildArgs: [],
+        runTest: false,
+        testArgs: [],
+      });
+    });
+  });
+
+  describe("with specified values", () => {
+    beforeEach(async () => {
+      const { getBooleanInput, getInput, getMultilineInput } = await import(
+        "@actions/core"
+      );
+
+      jest.mocked(getBooleanInput).mockImplementation((name) => {
+        switch (name) {
+          case "run-build":
+            return true;
+          case "run-test":
+            return true;
+        }
+        throw new Error(`invalid input name: ${name}`);
+      });
+
+      jest.mocked(getInput).mockImplementation((name) => {
+        switch (name) {
+          case "source-dir":
+            return "some-source";
+          case "build-dir":
+            return "some-build";
+          case "generator":
+            return "some-generator";
+          case "c-compiler":
+            return "some-c-compiler";
+          case "cxx-compiler":
+            return "some-cxx-compiler";
+        }
+        throw new Error(`invalid input name: ${name}`);
+      });
+
+      jest.mocked(getMultilineInput).mockImplementation((name) => {
+        switch (name) {
+          case "c-flags":
+            return ["some-c-flag another-c-flag", "some-other-c-flag"];
+          case "cxx-flags":
+            return ["some-cxx-flag another-cxx-flag", "some-other-cxx-flag"];
+          case "options":
+            return ["some-options another-options", "some-other-options"];
+          case "args":
+            return ["some-args another-args", "some-other-args"];
+          case "build-args":
+            return [
+              "some-build-args another-build-args",
+              "some-other-build-args",
+            ];
+          case "test-args":
+            return ["some-test-args another-test-args", "some-other-test-args"];
+        }
+        throw new Error(`invalid input name: ${name}`);
+      });
+    });
+
+    it("should get the action inputs", async () => {
+      const { getInputs } = await import("./inputs.js");
+
+      const inputs = getInputs();
+
+      expect(inputs).toStrictEqual({
+        sourceDir: "some-source",
+        buildDir: "some-build",
+        generator: "some-generator",
+        cCompiler: "some-c-compiler",
+        cxxCompiler: "some-cxx-compiler",
+        cFlags: "some-c-flag another-c-flag some-other-c-flag",
+        cxxFlags: "some-cxx-flag another-cxx-flag some-other-cxx-flag",
+        options: ["some-options", "another-options", "some-other-options"],
+        args: ["some-args", "another-args", "some-other-args"],
+        runBuild: true,
+        buildArgs: [
+          "some-build-args",
+          "another-build-args",
+          "some-other-build-args",
+        ],
+        runTest: true,
+        testArgs: [
+          "some-test-args",
+          "another-test-args",
+          "some-other-test-args",
+        ],
+      });
+    });
+  });
+});