精简后的项目：仅保留 api/ui 源码、文档、构建依赖

api/test_utils/env.go

@@ -0,0 +1,21 @@
+package test_utils
+
+import (
+	"path/filepath"
+	"runtime"
+)
+
+// PathFromAPIRoot returns the real path in the API project root.
+func PathFromAPIRoot(rootRelatedPaths ...string) string {
+	_, file, _, ok := runtime.Caller(0)
+	if !ok {
+		panic("Can't get the path of current function. It should not happen.")
+	}
+
+	base := filepath.Dir(file)
+	args := make([]string, 0, len(rootRelatedPaths)+2)
+	args = append(args, []string{base, ".."}...)
+	args = append(args, rootRelatedPaths...)
+
+	return filepath.Join(args...)
+}