57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
// Copyright 2020 dfuse Platform Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package solana
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import (
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"bytes"
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestVaruint16(t *testing.T) {
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tests := []struct {
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input uint16
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expect []byte
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}{
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{input: 0x0, expect: []byte{0x0}},
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{input: 0x7f, expect: []byte{0x7f}},
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{input: 0x80, expect: []byte{0x80, 0x01}},
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{input: 0xff, expect: []byte{0xff, 0x01}},
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{input: 0x100, expect: []byte{0x80, 0x02}},
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{input: 0x7fff, expect: []byte{0xff, 0xff, 0x01}},
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{input: 0xffff, expect: []byte{0xff, 0xff, 0x03}},
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}
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for idx, test := range tests {
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t.Run(fmt.Sprintf("%d", idx+1), func(t *testing.T) {
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el := Varuint16(test.input)
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b := make([]byte, 3)
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size, err := el.Pack(b, nil)
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require.NoError(t, err)
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assert.Equal(t, test.expect, b[:size])
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buf := bytes.NewBuffer(b)
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target := Varuint16(0)
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require.NoError(t, (&target).Unpack(buf, 0, nil))
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assert.Equal(t, test.input, uint16(target))
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})
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}
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}
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