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https://github.com/siderolabs/talos.git
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1edc08aa24
This fixes cases when large `log.Printf()` was simply lost as it exceeds max line length (despite being multi-line string with each line below 1KB). Now console logging should be much more reliable. Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
59 lines
1.7 KiB
Go
59 lines
1.7 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package kmsg_test
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import (
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"bytes"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/talos-systems/talos/internal/pkg/kmsg"
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)
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type fakeWriter struct {
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lines [][]byte
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}
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func (w *fakeWriter) Write(p []byte) (n int, err error) {
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w.lines = append(w.lines, append([]byte(nil), p...))
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return len(p), nil
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}
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func TestWriter(t *testing.T) {
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fakeW := &fakeWriter{}
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kmsgW := &kmsg.Writer{KmsgWriter: fakeW}
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n, err := kmsgW.Write([]byte("foo"))
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assert.Equal(t, 3, n)
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assert.NoError(t, err)
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n, err = kmsgW.Write([]byte("bar\n"))
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assert.Equal(t, 4, n)
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assert.NoError(t, err)
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n, err = kmsgW.Write([]byte("foo\nbar\n"))
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assert.Equal(t, 8, n)
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assert.NoError(t, err)
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n, err = kmsgW.Write(append(bytes.Repeat([]byte{0xce}, kmsg.MaxLineLength-1), '\n'))
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assert.Equal(t, kmsg.MaxLineLength, n)
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assert.NoError(t, err)
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n, err = kmsgW.Write(append(bytes.Repeat([]byte{0xce}, kmsg.MaxLineLength), '\n', 'a', 'b', '\n'))
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assert.Equal(t, kmsg.MaxLineLength+4, n)
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assert.NoError(t, err)
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assert.Len(t, fakeW.lines, 7)
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assert.Equal(t, fakeW.lines[0], []byte("foo"))
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assert.Equal(t, fakeW.lines[1], []byte("bar\n"))
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assert.Equal(t, fakeW.lines[2], []byte("foo\n"))
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assert.Equal(t, fakeW.lines[3], []byte("bar\n"))
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assert.Equal(t, fakeW.lines[4], append(bytes.Repeat([]byte{0xce}, kmsg.MaxLineLength-1), '\n'))
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assert.Equal(t, fakeW.lines[5], append(bytes.Repeat([]byte{0xce}, kmsg.MaxLineLength-4), '.', '.', '.', '\n'))
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assert.Equal(t, fakeW.lines[6], []byte("ab\n"))
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}
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