decode_test.go

package bson

import (
	"encoding/hex"
	"testing"
)

func TestDecode(t *testing.T) {
	doc := D{
		{"a", int32(123)},
		{"b", float64(123)},
		{"c", "string"},
		{
			"d", D{
				{"x", true},
				{"y", "str"},
				{"z", false},
			},
		},
	}

	raw, err := Marshal(doc)
	mustOk(t, err)

	doc = nil

	mustOk(t, Unmarshal(raw, &doc))
	t.Logf("got %+v\n", doc)
}

func Benchmark_cristalhq_Unmarshal(b *testing.B) {
	buf, _ := hex.DecodeString("a001000002616e6e6f756e636500270000007564703a2f2f747261636b65722e7075626c696362742e636f6d3a38302f616e6e6f756e63650004616e6e6f756e63656c69737400cf000000023000270000007564703a2f2f747261636b65722e7075626c696362742e636f6d3a38302f616e6e6f756e6365000231002d0000007564703a2f2f747261636b65722e6f70656e626974746f7272656e742e636f6d3a38302f616e6e6f756e6365000232002d0000007564703a2f2f747261636b65722e6f70656e626974746f7272656e742e636f6d3a38302f616e6e6f756e6365000233002d0000007564703a2f2f747261636b65722e6f70656e626974746f7272656e742e636f6d3a38302f616e6e6f756e6365000002636f6d6d656e74002200000044656269616e2043442066726f6d206364696d6167652e64656269616e2e6f72670003696e666f0054000000126c656e677468000000300a00000000026e616d65001f00000064656269616e2d382e382e302d61726d36342d6e6574696e73742e69736f00127069656365206c656e6774680000000400000000000000")
	b.ReportAllocs()

	v := map[string]any{}
	var count int64
	for n := 0; n < b.N; n++ {
		err := Unmarshal(buf, &v)
		if err != nil {
			panic(err)
		}
		count += int64(len(v))
	}
	sink(b, count)
}

func Fuzz_Decoder2(f *testing.F) {
	f.Add(unhex("a001000002616e6e6f756e636500270000007564703a2f2f747261636b65722e7075626c696362742e636f6d3a38302f616e6e6f756e63650004616e6e6f756e63656c69737400cf000000023000270000007564703a2f2f747261636b65722e7075626c696362742e636f6d3a38302f616e6e6f756e6365000231002d0000007564703a2f2f747261636b65722e6f70656e626974746f7272656e742e636f6d3a38302f616e6e6f756e6365000232002d0000007564703a2f2f747261636b65722e6f70656e626974746f7272656e742e636f6d3a38302f616e6e6f756e6365000233002d0000007564703a2f2f747261636b65722e6f70656e626974746f7272656e742e636f6d3a38302f616e6e6f756e6365000002636f6d6d656e74002200000044656269616e2043442066726f6d206364696d6167652e64656269616e2e6f72670003696e666f0054000000126c656e677468000000300a00000000026e616d65001f00000064656269616e2d382e382e302d61726d36342d6e6574696e73742e69736f00127069656365206c656e6774680000000400000000000000"))
	f.Add(unhex("4d88e15b60f486e428412dc9"))

	v := map[string]any{}
	f.Fuzz(func(t *testing.T, buf []byte) {
		dec := NewDecodeBytes(buf)
		if err := dec.Decode(v); err != nil {
		}
	})
}

func unhex(s string) []byte {
	b, err := hex.DecodeString(s)
	if err != nil {
		panic(err)
	}
	return b
}