CI tester

.github/actions/golangci-lint/action.yml

@@ -51,13 +51,12 @@ runs:
       shell: bash
       run: go build ./...
     - name: golangci-lint
-      uses: golangci/golangci-lint-action@3cfe3a4abbb849e10058ce4af15d205b6da42804 # v4.0.0
+      uses: golangci/golangci-lint-action@aaa42aa0628b4ae2578232a66b541047968fac86 # v6.1.0
       with:
         version: v1.59.1
         # We already cache these directories in setup-go
         skip-pkg-cache: true
         skip-build-cache: true
-        # only-new-issues is only applicable to PRs, otherwise it is always set to false
         only-new-issues: true
         args: --out-format colored-line-number,checkstyle:golangci-lint-report.xml
         working-directory: ${{ inputs.go-directory }}

fail_test.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"errors"
+	"os"
+	"sync"
+	"testing"
+)
+
+func TestFail(t *testing.T) {
+	if testing.Short() {
+		t.Skip()
+	}
+	t.Fatal("fake failure")
+}
+
+func TestRace(t *testing.T) {
+	var v int
+	var wg sync.WaitGroup
+	wg.Add(100)
+	for i := 0; i < 100; i++ {
+		go func() {
+			defer wg.Done()
+			v++
+			v--
+		}()
+	}
+	wg.Wait()
+	t.Log(v)
+}
+
+func TestLint(t *testing.T) {
+	const ALL_CAPS = 10 // should be AllCaps
+	err := os.ErrNotExist
+	if err == os.ErrNotExist { // should use errors.Is
+		err := errors.New("fake error") // shadowed variable
+		t.Log(err)
+	}
+}