精简后的项目：仅保留 api/ui 源码、文档、构建依赖

api/utils/utils_test.go

@@ -0,0 +1,76 @@
+package utils_test
+
+import (
+	"os"
+	"path"
+	"testing"
+
+	"github.com/photoview/photoview/api/test_utils"
+	"github.com/photoview/photoview/api/utils"
+)
+
+func TestMain(m *testing.M) {
+	test_utils.IntegrationTestRun(m)
+}
+
+func TestIsDirSymlink(t *testing.T) {
+	test_utils.FilesystemTest(t)
+
+	// Prepare a temporary directory for testing purposes
+	dir, err := os.MkdirTemp("", "testing")
+	if err != nil {
+		t.Fatalf("unable to create temp directory for testing")
+	}
+	defer os.RemoveAll(dir)
+
+	// Create regular file
+	_, err = os.Create(path.Join(dir, "regular_file"))
+	if err != nil {
+		t.Fatalf("unable to create regular file for testing")
+	}
+
+	// Create directory
+	err = os.Mkdir(path.Join(dir, "directory"), 0755)
+	if err != nil {
+		t.Fatalf("unable to create directory for testing")
+	}
+
+	// Create symlink to regular file
+	err = os.Symlink(path.Join(dir, "regular_file"), path.Join(dir, "file_link"))
+	if err != nil {
+		t.Fatalf("unable to create file link for testing")
+	}
+
+	// Create symlink to directory
+	err = os.Symlink(path.Join(dir, "directory"), path.Join(dir, "dir_link"))
+	if err != nil {
+		t.Fatalf("unable to create dir link for testing")
+	}
+
+	// Execute the actual tests
+
+	isDirLink, _ := utils.IsDirSymlink(path.Join(dir, "regular_file"))
+	if isDirLink {
+		t.Error("Failed detection of regular file")
+	}
+
+	isDirLink, _ = utils.IsDirSymlink(path.Join(dir, "directory"))
+	if isDirLink {
+		t.Error("Failed detection of directory")
+	}
+
+	isDirLink, _ = utils.IsDirSymlink(path.Join(dir, "file_link"))
+	if isDirLink {
+		t.Error("Failed detection of link to regular file")
+	}
+
+	isDirLink, _ = utils.IsDirSymlink(path.Join(dir, "dir_link"))
+	if !isDirLink {
+		t.Error("Failed detection of link to directory")
+	}
+
+	isDirLink, err = utils.IsDirSymlink(path.Join(dir, "non_existant"))
+	if err == nil {
+		t.Error("Missing error for non-existant file")
+	}
+}