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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [encoding/] [json/] [stream_test.go] - Blame information for rev 747

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Line No. Rev Author Line
1 747 jeremybenn 
// Copyright 2010 The Go Authors.  All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package json
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import (
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        "bytes"
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        "reflect"
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        "testing"
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)
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// Test values for the stream test.
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// One of each JSON kind.
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var streamTest = []interface{}{
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        0.1,
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        "hello",
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        nil,
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        true,
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        false,
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        []interface{}{"a", "b", "c"},
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        map[string]interface{}{"K": "Kelvin", "ß": "long s"},
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        3.14, // another value to make sure something can follow map
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}
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var streamEncoded = `0.1
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"hello"
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null
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true
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false
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["a","b","c"]
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{"ß":"long s","K":"Kelvin"}
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3.14
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`
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func TestEncoder(t *testing.T) {
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        for i := 0; i <= len(streamTest); i++ {
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                var buf bytes.Buffer
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                enc := NewEncoder(&buf)
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                for j, v := range streamTest[0:i] {
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                        if err := enc.Encode(v); err != nil {
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                                t.Fatalf("encode #%d: %v", j, err)
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                        }
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                }
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                if have, want := buf.String(), nlines(streamEncoded, i); have != want {
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                        t.Errorf("encoding %d items: mismatch", i)
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                        diff(t, []byte(have), []byte(want))
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                        break
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                }
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        }
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}
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func TestDecoder(t *testing.T) {
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        for i := 0; i <= len(streamTest); i++ {
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                // Use stream without newlines as input,
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                // just to stress the decoder even more.
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                // Our test input does not include back-to-back numbers.
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                // Otherwise stripping the newlines would
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                // merge two adjacent JSON values.
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                var buf bytes.Buffer
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                for _, c := range nlines(streamEncoded, i) {
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                        if c != '\n' {
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                                buf.WriteRune(c)
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                        }
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                }
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                out := make([]interface{}, i)
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                dec := NewDecoder(&buf)
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                for j := range out {
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                        if err := dec.Decode(&out[j]); err != nil {
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                                t.Fatalf("decode #%d/%d: %v", j, i, err)
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                        }
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                }
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                if !reflect.DeepEqual(out, streamTest[0:i]) {
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                        t.Errorf("decoding %d items: mismatch", i)
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                        for j := range out {
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                                if !reflect.DeepEqual(out[j], streamTest[j]) {
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                                        t.Errorf("#%d: have %v want %v", j, out[j], streamTest[j])
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                                }
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                        }
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                        break
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                }
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        }
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}
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func nlines(s string, n int) string {
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        if n <= 0 {
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                return ""
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        }
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        for i, c := range s {
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                if c == '\n' {
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                        if n--; n == 0 {
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                                return s[0 : i+1]
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                        }
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                }
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        }
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        return s
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}
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func TestRawMessage(t *testing.T) {
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        // TODO(rsc): Should not need the * in *RawMessage
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        var data struct {
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                X  float64
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                Id *RawMessage
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                Y  float32
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        }
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        const raw = `["\u0056",null]`
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        const msg = `{"X":0.1,"Id":["\u0056",null],"Y":0.2}`
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        err := Unmarshal([]byte(msg), &data)
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        if err != nil {
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                t.Fatalf("Unmarshal: %v", err)
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        }
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        if string([]byte(*data.Id)) != raw {
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                t.Fatalf("Raw mismatch: have %#q want %#q", []byte(*data.Id), raw)
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        }
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        b, err := Marshal(&data)
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        if err != nil {
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                t.Fatalf("Marshal: %v", err)
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        }
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        if string(b) != msg {
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                t.Fatalf("Marshal: have %#q want %#q", b, msg)
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        }
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}
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func TestNullRawMessage(t *testing.T) {
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        // TODO(rsc): Should not need the * in *RawMessage
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        var data struct {
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                X  float64
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                Id *RawMessage
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                Y  float32
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        }
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        data.Id = new(RawMessage)
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        const msg = `{"X":0.1,"Id":null,"Y":0.2}`
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        err := Unmarshal([]byte(msg), &data)
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        if err != nil {
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                t.Fatalf("Unmarshal: %v", err)
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        }
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        if data.Id != nil {
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                t.Fatalf("Raw mismatch: have non-nil, want nil")
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        }
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        b, err := Marshal(&data)
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        if err != nil {
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                t.Fatalf("Marshal: %v", err)
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        }
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        if string(b) != msg {
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                t.Fatalf("Marshal: have %#q want %#q", b, msg)
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        }
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}

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