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audio/internal/convert: better tests

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This commit is contained in:
Hajime Hoshi 2024-07-13 22:42:26 +09:00
parent 96a07c1bf2
commit 6f74e03cb3
1 changed files with 40 additions and 31 deletions
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71
audio/internal/convert/float32_test.go
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@ -35,56 +35,65 @@ func randInt16s(n int) []int16 {
func TestFloat32(t *testing.T) { func TestFloat32(t *testing.T) {
cases := []struct { cases := []struct {
Name string
In []int16 In []int16
SkipOnBrowserReason string SkipOnBrowserReason string
}{ }{
{ {
In: nil, Name: "empty",
In: nil,
}, },
{ {
In: []int16{-32768, 0, 32767}, Name: "-1, 0, 1",
In: []int16{-32768, 0, 32767},
}, },
{ {
In: []int16{0, 0, 0, 0, 0, 0, 0, 0}, Name: "8 0s",
In: []int16{0, 0, 0, 0, 0, 0, 0, 0},
}, },
{ {
In: randInt16s(256), Name: "random 256 values",
In: randInt16s(256),
}, },
{ {
Name: "random 65536 values",
In: randInt16s(65536), In: randInt16s(65536),
SkipOnBrowserReason: "entropy is not enough on browser to generate random numbers", SkipOnBrowserReason: "entropy is not enough on browser to generate random numbers",
}, },
} }
for _, c := range cases { for _, c := range cases {
if runtime.GOOS == "js" && c.SkipOnBrowserReason != "" { c := c
t.Skip(c.SkipOnBrowserReason) t.Run(c.Name, func(t *testing.T) {
} if runtime.GOOS == "js" && c.SkipOnBrowserReason != "" {
// Note that unsafe.SliceData is available as of Go 1.20. t.Skip(c.SkipOnBrowserReason)
var in, out []byte
if len(c.In) > 0 {
outF32 := make([]float32, len(c.In))
for i := range c.In {
outF32[i] = float32(c.In[i]) / (1 << 15)
} }
in = unsafe.Slice((*byte)(unsafe.Pointer(&c.In[0])), len(c.In)*2) // Note that unsafe.SliceData is available as of Go 1.20.
out = unsafe.Slice((*byte)(unsafe.Pointer(&outF32[0])), len(outF32)*4) var in, out []byte
} if len(c.In) > 0 {
r := convert.NewFloat32BytesReaderFromInt16BytesReader(bytes.NewReader(in)) outF32 := make([]float32, len(c.In))
var got []byte for i := range c.In {
for { outF32[i] = float32(c.In[i]) / (1 << 15)
var buf [97]byte
n, err := r.Read(buf[:])
got = append(got, buf[:n]...)
if err != nil {
if err != io.EOF {
t.Fatal(err)
} }
break in = unsafe.Slice((*byte)(unsafe.Pointer(&c.In[0])), len(c.In)*2)
out = unsafe.Slice((*byte)(unsafe.Pointer(&outF32[0])), len(outF32)*4)
} }
} r := convert.NewFloat32BytesReaderFromInt16BytesReader(bytes.NewReader(in))
want := out var got []byte
if !bytes.Equal(got, want) { for {
t.Errorf("got: %v, want: %v", got, want) var buf [97]byte
} n, err := r.Read(buf[:])
got = append(got, buf[:n]...)
if err != nil {
if err != io.EOF {
t.Fatal(err)
}
break
}
}
want := out
if !bytes.Equal(got, want) {
t.Errorf("got: %v, want: %v", got, want)
}
})
} }
} }