Add tests on http static FS mounting

Author: mengdaming

src/http/static_test.go

@@ -0,0 +1,45 @@
+/*
+Copyright (c) 2024 Murex
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+package http
+
+import (
+	"embed"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+//go:embed static
+var testStaticFS embed.FS
+
+func Test_mount_static_FS(t *testing.T) {
+	fs := embedFolder(testStaticFS, "static")
+	assert.True(t, fs.Exists("/", "index.html"))
+	assert.False(t, fs.Exists("/", "dummy-file"))
+}
+
+func Test_mount_static_FS_with_invalid_path(t *testing.T) {
+	assert.Panics(t, func() {
+		// Panic is triggered by the trailing "/" on targetPath
+		embedFolder(testStaticFS, "invalid-path/")
+	})
+}