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43 lines
899 B
Go
43 lines
899 B
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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//go:build linux || dragonfly || freebsd || netbsd || openbsd || solaris
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package resource
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import (
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"os"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestReadFileExistent(t *testing.T) {
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fileContents := "foo"
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f, err := os.CreateTemp(t.TempDir(), "readfile_")
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require.NoError(t, err)
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defer os.Remove(f.Name())
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_, err = f.WriteString(fileContents)
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require.NoError(t, err)
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require.NoError(t, f.Close())
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result, err := readFile(f.Name())
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require.NoError(t, err)
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require.Equal(t, result, fileContents)
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}
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func TestReadFileNonExistent(t *testing.T) {
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// create unique filename
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f, err := os.CreateTemp(t.TempDir(), "readfile_")
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require.NoError(t, err)
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// make file non-existent
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require.NoError(t, os.Remove(f.Name()))
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_, err = readFile(f.Name())
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require.ErrorIs(t, err, os.ErrNotExist)
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}
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