move nock to setup and teardown

__tests__/installer.test.ts

@@ -41,53 +41,54 @@ describe('installer tests', () => {
     }
   }, 100000);
 
-  it('Acquires latest release version of go 1.10 if using 1.10 and no matching version is installed', async () => {
-    nock('https://api.github.com')
-      .get('/repos/golang/go/git/refs/tags')
-      .replyWithFile(200, path.join(dataDir, 'golang-tags.json'));
-
-    await installer.getGo('1.10');
-    const goDir = path.join(toolDir, 'go', '1.10.8', os.arch());
-
-    expect(fs.existsSync(`${goDir}.complete`)).toBe(true);
-    if (IS_WINDOWS) {
-      expect(fs.existsSync(path.join(goDir, 'bin', 'go.exe'))).toBe(true);
-    } else {
-      expect(fs.existsSync(path.join(goDir, 'bin', 'go'))).toBe(true);
-    }
-  }, 100000);
-
-  it('Acquires latest release version of go 1.10 if using 1.10.x and no matching version is installed', async () => {
-    nock('https://api.github.com')
-      .get('/repos/golang/go/git/refs/tags')
-      .replyWithFile(200, path.join(dataDir, 'golang-tags.json'));
-
-    await installer.getGo('1.10.x');
-    const goDir = path.join(toolDir, 'go', '1.10.8', os.arch());
-
-    expect(fs.existsSync(`${goDir}.complete`)).toBe(true);
-    if (IS_WINDOWS) {
-      expect(fs.existsSync(path.join(goDir, 'bin', 'go.exe'))).toBe(true);
-    } else {
-      expect(fs.existsSync(path.join(goDir, 'bin', 'go'))).toBe(true);
-    }
-  }, 100000);
-
-  it('Acquires latest release version of go if using 1.x and no matching version is installed', async () => {
-    nock('https://api.github.com')
-      .get('/repos/golang/go/git/refs/tags')
-      .replyWithFile(200, path.join(dataDir, 'golang-tags.json'));
-
-    await installer.getGo('1.x');
-    const goDir = path.join(toolDir, 'go', '1.13.0-beta1', os.arch());
-
-    expect(fs.existsSync(`${goDir}.complete`)).toBe(true);
-    if (IS_WINDOWS) {
-      expect(fs.existsSync(path.join(goDir, 'bin', 'go.exe'))).toBe(true);
-    } else {
-      expect(fs.existsSync(path.join(goDir, 'bin', 'go'))).toBe(true);
-    }
-  }, 100000);
+  describe('the latest release of a go version', () => {
+    beforeEach(() => {
+      nock('https://api.github.com')
+        .get('/repos/golang/go/git/refs/tags')
+        .replyWithFile(200, path.join(dataDir, 'golang-tags.json'));
+    });
+
+    afterEach(() => {
+      nock.cleanAll();
+      nock.enableNetConnect();
+    });
+
+    it('Acquires latest release version of go 1.10 if using 1.10 and no matching version is installed', async () => {
+      await installer.getGo('1.10');
+      const goDir = path.join(toolDir, 'go', '1.10.8', os.arch());
+
+      expect(fs.existsSync(`${goDir}.complete`)).toBe(true);
+      if (IS_WINDOWS) {
+        expect(fs.existsSync(path.join(goDir, 'bin', 'go.exe'))).toBe(true);
+      } else {
+        expect(fs.existsSync(path.join(goDir, 'bin', 'go'))).toBe(true);
+      }
+    }, 100000);
+
+    it('Acquires latest release version of go 1.10 if using 1.10.x and no matching version is installed', async () => {
+      await installer.getGo('1.10.x');
+      const goDir = path.join(toolDir, 'go', '1.10.8', os.arch());
+
+      expect(fs.existsSync(`${goDir}.complete`)).toBe(true);
+      if (IS_WINDOWS) {
+        expect(fs.existsSync(path.join(goDir, 'bin', 'go.exe'))).toBe(true);
+      } else {
+        expect(fs.existsSync(path.join(goDir, 'bin', 'go'))).toBe(true);
+      }
+    }, 100000);
+
+    it('Acquires latest release version of go if using 1.x and no matching version is installed', async () => {
+      await installer.getGo('1.x');
+      const goDir = path.join(toolDir, 'go', '1.13.0-beta1', os.arch());
+
+      expect(fs.existsSync(`${goDir}.complete`)).toBe(true);
+      if (IS_WINDOWS) {
+        expect(fs.existsSync(path.join(goDir, 'bin', 'go.exe'))).toBe(true);
+      } else {
+        expect(fs.existsSync(path.join(goDir, 'bin', 'go'))).toBe(true);
+      }
+    }, 100000);
+  });
 
   it('Throws if no location contains correct go version', async () => {
     let thrown = false;
@@ -104,7 +105,7 @@ describe('installer tests', () => {
     await io.mkdirP(goDir);
     fs.writeFileSync(`${goDir}.complete`, 'hello');
     // This will throw if it doesn't find it in the cache (because no such version exists)
-    await installer.getGo('250.0.0');
+    await installer.getGo('250.0');
     return;
   });