test: Enhance Coverage + CI (#1055)

Reviewed-on: https://gitea.com/gitea/runner/pulls/1055
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: bircni <bircni@icloud.com>

internal/app/cmd/daemon_test.go

@@ -0,0 +1,40 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"testing"
+
+	"gitea.com/gitea/runner/internal/pkg/config"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetDockerSocketPathUsesConfigAndEnvironment(t *testing.T) {
+	got, err := getDockerSocketPath("tcp://docker.example:2376")
+	require.NoError(t, err)
+	require.Equal(t, "tcp://docker.example:2376", got)
+
+	t.Setenv("DOCKER_HOST", "unix:///tmp/docker.sock")
+	got, err = getDockerSocketPath("-")
+	require.NoError(t, err)
+	require.Equal(t, "unix:///tmp/docker.sock", got)
+}
+
+func TestInitLoggingSetsLevelAndCaller(t *testing.T) {
+	oldLevel := log.GetLevel()
+	oldReportCaller := log.StandardLogger().ReportCaller
+	t.Cleanup(func() {
+		log.SetLevel(oldLevel)
+		log.SetReportCaller(oldReportCaller)
+	})
+
+	cfg := &config.Config{}
+	cfg.Log.Level = "debug"
+	initLogging(cfg)
+
+	require.Equal(t, log.DebugLevel, log.GetLevel())
+	require.True(t, log.StandardLogger().ReportCaller)
+}