xfy
fdab778896
提供 DetectContentType 函数，补充 Go 标准库缺失的 MIME 类型映射。 使用包本地映射而非全局 mime.AddExtensionType，避免副作用。 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
package mimeutil
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import "testing"
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// TestDetectContentType 测试 MIME 类型检测
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func TestDetectContentType(t *testing.T) {
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tests := []struct {
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filePath string
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want string
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}{
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// 标准库已知类型 (验证回退)
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{"test.html", "text/html; charset=utf-8"},
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{"test.css", "text/css; charset=utf-8"},
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{"test.js", "text/javascript; charset=utf-8"},
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{"test.json", "application/json"},
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{"test.mjs", "text/javascript; charset=utf-8"}, // Go 1.26.2+ 已支持
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// 包本地补充类型 - 缺失
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{"test.eot", "application/vnd.ms-fontobject"},
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{"test.webmanifest", "application/manifest+json"},
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{"test.map", "application/json"},
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// 包本地覆盖类型 - Go 返回错误类型
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{"test.otf", "font/otf"}, // Go 返回 OpenDocument 公式模板
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{"test.webm", "video/webm"}, // Go 返回 audio/webm
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// 大小写处理 - 验证 strings.ToLower
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{"test.EOT", "application/vnd.ms-fontobject"}, // 不在 Go 表中
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{"test.WEBMANIFEST", "application/manifest+json"},
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{"test.JPG", "image/jpeg"}, // Go 已知，也处理大小写
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// 未知类型
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{"test.unknown", ""},
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}
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for _, tt := range tests {
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t.Run(tt.filePath, func(t *testing.T) {
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got := DetectContentType(tt.filePath)
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if got != tt.want {
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t.Errorf("DetectContentType(%q) = %q, want %q", tt.filePath, got, tt.want)
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}
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})
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}
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}
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