test: enforce tenv usage in tests

.golangci.yml

@@ -19,6 +19,7 @@ linters:
     - revive
     - staticcheck
     - stylecheck
+    - tenv
     - typecheck
     - unconvert
     - unused

modules/base/tool_test.go

@@ -6,7 +6,6 @@ package base
 import (
 	"crypto/sha1"
 	"fmt"
-	"os"
 	"testing"
 	"time"
 
@@ -168,9 +167,9 @@ func TestInt64sToStrings(t *testing.T) {
 // TODO: Test EntryIcon
 
 func TestSetupGiteaRoot(t *testing.T) {
-	_ = os.Setenv("GITEA_ROOT", "test")
+	t.Setenv("GITEA_ROOT", "test")
 	assert.Equal(t, "test", SetupGiteaRoot())
-	_ = os.Setenv("GITEA_ROOT", "")
+	t.Setenv("GITEA_ROOT", "")
 	assert.NotEqual(t, "test", SetupGiteaRoot())
 }
 

modules/user/user_test.go

@@ -4,7 +4,6 @@
 package user
 
 import (
-	"os"
 	"os/exec"
 	"runtime"
 	"strings"
@@ -36,7 +35,7 @@ func TestCurrentUsername(t *testing.T) {
 	if user != whoami {
 		t.Errorf("expected %s as user, got: %s", whoami, user)
 	}
-	os.Setenv("USER", "spoofed")
+	t.Setenv("USER", "spoofed")
 	user = CurrentUsername()
 	if user != whoami {
 		t.Errorf("expected %s as user, got: %s", whoami, user)

tests/integration/git_helper_for_declarative_test.go

@@ -40,10 +40,10 @@ func withKeyFile(t *testing.T, keyname string, callback func(string)) {
 	assert.NoError(t, err)
 
 	// Setup ssh wrapper
-	os.Setenv("GIT_SSH", path.Join(tmpDir, "ssh"))
-	os.Setenv("GIT_SSH_COMMAND",
+	t.Setenv("GIT_SSH", path.Join(tmpDir, "ssh"))
+	t.Setenv("GIT_SSH_COMMAND",
 		"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o IdentitiesOnly=yes -i \""+keyFile+"\"")
-	os.Setenv("GIT_SSH_VARIANT", "ssh")
+	t.Setenv("GIT_SSH_VARIANT", "ssh")
 
 	callback(keyFile)
 }

tests/integration/gpg_git_test.go

@@ -30,10 +30,8 @@ func TestGPGGit(t *testing.T) {
 	err := os.Chmod(tmpDir, 0o700)
 	assert.NoError(t, err)
 
-	oldGNUPGHome := os.Getenv("GNUPGHOME")
-	err = os.Setenv("GNUPGHOME", tmpDir)
+	t.Setenv("GNUPGHOME", tmpDir)
 	assert.NoError(t, err)
-	defer os.Setenv("GNUPGHOME", oldGNUPGHome)
 
 	// Need to create a root key
 	rootKeyPair, err := importTestingKey()