49 lines
1.9 KiB
Go
49 lines
1.9 KiB
Go
package transcode
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import "testing"
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// designPublishedRoutes 是 design/25 §3.1「格式矩阵」里**已发布**的路数：
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// 本期只有一条 —— `amr → wav`。
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//
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// 这条常量刻意写在测试里：谁加了实现却忘了在 DefaultCodecs 注册（或反过来），
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// 这条断言就会红，逼他回设计里对一次账。这就是 design/25 §6.3 要的「把值钉死在
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// 设计上」，与只测边界逻辑互补。
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const designPublishedRoutes = 1
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// TestDefaultCodecsMatchesPublishedMatrix 断言注册点与设计矩阵一致。
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func TestDefaultCodecsMatchesPublishedMatrix(t *testing.T) {
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codecs := DefaultCodecs()
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if len(codecs) != designPublishedRoutes {
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t.Fatalf("DefaultCodecs() registers %d routes, design/25 §3.1 publishes %d: "+
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"加了实现要在此处同步注册（并回设计对账）", len(codecs), designPublishedRoutes)
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}
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route := codecs[0]
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if route.From() != FormatAMR || route.To() != FormatWAV {
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t.Fatalf("DefaultCodecs()[0] = %s -> %s, want amr -> wav", route.From(), route.To())
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}
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}
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// TestEnginePublishesOnlyTheDesignRoute 断言引擎对外报告的路也是那一条：
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// Supports 只认 amr→wav，Formats 只报 amr/wav。
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func TestEnginePublishesOnlyTheDesignRoute(t *testing.T) {
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eng := NewEngine(DefaultLimits(), WithCodecs(DefaultCodecs()...))
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if err := eng.RegistrationError(); err != nil {
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t.Fatalf("registration: %v", err)
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}
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if !eng.Supports(FormatAMR, FormatWAV) {
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t.Fatalf("amr -> wav must be supported")
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}
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for _, pair := range [][2]Format{
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{FormatWAV, FormatAMR}, {FormatAMR, FormatAMR}, {FormatWAV, FormatWAV},
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{FormatAMRWB, FormatWAV}, {FormatAMR, FormatAMRWB},
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} {
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if eng.Supports(pair[0], pair[1]) {
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t.Errorf("Supports(%q, %q) = true, want false（本期只发 amr -> wav）", pair[0], pair[1])
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}
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}
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formats := eng.Formats()
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if len(formats) != 2 || formats[0] != FormatAMR || formats[1] != FormatWAV {
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t.Fatalf("Formats = %v, want [amr wav]", formats)
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}
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}
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