test: Add integration testing (#131)

* docs: Update description
* deps: Add nock
* chore: Add resolveJsonModule
* test: Add integration testing
* chore: Add @typescript-eslint/eslint-plugin
* refactor: Fix lint errors
* chore: Add eslint-plugin-jest
* refactor: Fix lint errors
* test: Add remove working files
* ci: Comment out cache steps

src/main.ts

@@ -0,0 +1,65 @@
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+import {getLatestVersion} from './get-latest-version';
+import {installer} from './installer';
+import {Tool} from './constants';
+
+export interface ActionResult {
+  exitcode: number;
+  output: string;
+}
+
+export async function showVersion(
+  cmd: string,
+  args: string[]
+): Promise<ActionResult> {
+  const result: ActionResult = {
+    exitcode: 0,
+    output: ''
+  };
+
+  const options = {
+    listeners: {
+      stdout: (data: Buffer): void => {
+        result.output += data.toString();
+      }
+    }
+  };
+
+  try {
+    result.exitcode = await exec.exec(cmd, args, options);
+  } catch (e) {
+    return e;
+  }
+  core.debug(`command: ${cmd} ${args}`);
+  core.debug(`exit code: ${result.exitcode}`);
+  core.debug(`stdout: ${result.output}`);
+  return result;
+}
+
+export async function run(): Promise<ActionResult> {
+  try {
+    const toolVersion: string = core.getInput('hugo-version');
+    let installVersion = '';
+
+    let result: ActionResult = {
+      exitcode: 0,
+      output: ''
+    };
+
+    if (toolVersion === '' || toolVersion === 'latest') {
+      installVersion = await getLatestVersion(Tool.Org, Tool.Repo, 'brew');
+    } else {
+      installVersion = toolVersion;
+    }
+
+    core.info(`${Tool.Name} version: ${installVersion}`);
+    await installer(installVersion);
+    result = await showVersion(Tool.CmdName, [Tool.CmdOptVersion]);
+
+    return result;
+  } catch (e) {
+    core.setFailed(`Action failed with error ${e}`);
+    return e;
+  }
+}