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path: root/whisper/whisperv5/topic_test.go
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// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package whisperv5

import "testing"

var topicStringTests = []struct {
    topic TopicType
    str   string
}{
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, str: "0x00000000"},
    {topic: TopicType{0x00, 0x7f, 0x80, 0xff}, str: "0x007f80ff"},
    {topic: TopicType{0xff, 0x80, 0x7f, 0x00}, str: "0xff807f00"},
    {topic: TopicType{0xf2, 0x6e, 0x77, 0x79}, str: "0xf26e7779"},
}

func TestTopicString(t *testing.T) {
    for i, tst := range topicStringTests {
        s := tst.topic.String()
        if s != tst.str {
            t.Fatalf("failed test %d: have %s, want %s.", i, s, tst.str)
        }
    }
}

var bytesToTopicTests = []struct {
    data  []byte
    topic TopicType
}{
    {topic: TopicType{0x8f, 0x9a, 0x2b, 0x7d}, data: []byte{0x8f, 0x9a, 0x2b, 0x7d}},
    {topic: TopicType{0x00, 0x7f, 0x80, 0xff}, data: []byte{0x00, 0x7f, 0x80, 0xff}},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte{0x00, 0x00, 0x00, 0x00}},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte{0x00, 0x00, 0x00}},
    {topic: TopicType{0x01, 0x00, 0x00, 0x00}, data: []byte{0x01}},
    {topic: TopicType{0x00, 0xfe, 0x00, 0x00}, data: []byte{0x00, 0xfe}},
    {topic: TopicType{0xea, 0x1d, 0x43, 0x00}, data: []byte{0xea, 0x1d, 0x43}},
    {topic: TopicType{0x6f, 0x3c, 0xb0, 0xdd}, data: []byte{0x6f, 0x3c, 0xb0, 0xdd, 0x0f, 0x00, 0x90}},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte{}},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: nil},
}

func TestBytesToTopic(t *testing.T) {
    for i, tst := range bytesToTopicTests {
        top := BytesToTopic(tst.data)
        if top != tst.topic {
            t.Fatalf("failed test %d: have %v, want %v.", i, t, tst.topic)
        }
    }
}

var unmarshalTestsGood = []struct {
    topic TopicType
    data  []byte
}{
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x00000000"`)},
    {topic: TopicType{0x00, 0x7f, 0x80, 0xff}, data: []byte(`"0x007f80ff"`)},
    {topic: TopicType{0xff, 0x80, 0x7f, 0x00}, data: []byte(`"0xff807f00"`)},
    {topic: TopicType{0xf2, 0x6e, 0x77, 0x79}, data: []byte(`"0xf26e7779"`)},
}

var unmarshalTestsBad = []struct {
    topic TopicType
    data  []byte
}{
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x000000"`)},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x0000000"`)},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x000000000"`)},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x0000000000"`)},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"000000"`)},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0000000"`)},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"000000000"`)},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0000000000"`)},
    {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"abcdefg0"`)},
}

var unmarshalTestsUgly = []struct {
    topic TopicType
    data  []byte
}{
    {topic: TopicType{0x01, 0x00, 0x00, 0x00}, data: []byte(`"0x00000001"`)},
}

func TestUnmarshalTestsGood(t *testing.T) {
    for i, tst := range unmarshalTestsGood {
        var top TopicType
        err := top.UnmarshalJSON(tst.data)
        if err != nil {
            t.Fatalf("failed test %d. input: %v. err: %v", i, tst.data, err)
        } else if top != tst.topic {
            t.Fatalf("failed test %d: have %v, want %v.", i, t, tst.topic)
        }
    }
}

func TestUnmarshalTestsBad(t *testing.T) {
    // in this test UnmarshalJSON() is supposed to fail
    for i, tst := range unmarshalTestsBad {
        var top TopicType
        err := top.UnmarshalJSON(tst.data)
        if err == nil {
            t.Fatalf("failed test %d. input: %v.", i, tst.data)
        }
    }
}

func TestUnmarshalTestsUgly(t *testing.T) {
    // in this test UnmarshalJSON() is NOT supposed to fail, but result should be wrong
    for i, tst := range unmarshalTestsUgly {
        var top TopicType
        err := top.UnmarshalJSON(tst.data)
        if err != nil {
            t.Fatalf("failed test %d. input: %v.", i, tst.data)
        } else if top == tst.topic {
            t.Fatalf("failed test %d: have %v, want %v.", i, top, tst.topic)
        }
    }
}