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Add compression test
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parent
98aa9cc068
commit
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45
go/compress/compression_test.go
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45
go/compress/compression_test.go
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package compress
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import (
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"math/rand"
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"testing"
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)
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func TestSortedData(t *testing.T) {
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data := make([]int32, 102400)
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for i := 1; i < len(data); i++ {
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data[i] = data[i-1] + rand.Int31n(15)
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}
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testCompressAndUncompress(t, data, "Sorted data")
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}
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func TestUnsortedData(t *testing.T) {
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data := make([]int32, 102400)
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for i := 0; i < len(data); i++ {
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data[i] = rand.Int31n(255)
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}
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testCompressAndUncompress(t, data, "Unsorted data")
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}
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func testCompressAndUncompress(t *testing.T, data []int32, desc string) {
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compressed_data, err := Compress32(data)
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if err != nil {
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t.Fatal("Compress error", err.Error())
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}
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uncompressed_data, err := Uncompress32(compressed_data, make([]int32, len(data)*2))
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if err != nil {
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t.Fatal("Compress error", err.Error())
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}
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if len(uncompressed_data) != len(data) {
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t.Fatal("Len differs", len(data), len(uncompressed_data))
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}
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for i := 0; i < len(data); i++ {
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if data[i] != uncompressed_data[i] {
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t.Fatal("Data differs:", i, data[i], uncompressed_data[i])
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}
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}
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println(desc, " Data length:", len(data), " => Compressed length:", len(compressed_data))
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}
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