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33 lines
795 B
Go
33 lines
795 B
Go
package kernel
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import (
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"testing"
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"github.com/containerd/log"
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"gotest.tools/v3/assert"
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is "gotest.tools/v3/assert/cmp"
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)
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func TestReadWriteKnobs(t *testing.T) {
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for _, k := range []string{
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"net.ipv4.neigh.default.gc_thresh1",
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"net.ipv4.neigh.default.gc_thresh2",
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"net.ipv4.neigh.default.gc_thresh3",
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} {
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// Check if the test is able to read the value
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v, err := readSystemProperty(k)
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if err != nil {
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log.G(t.Context()).WithError(err).Warnf("Path %v not readable", k)
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// the path is not there, skip this key
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continue
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}
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// Test the write
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assert.Check(t, writeSystemProperty(k, "10000"))
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newV, err := readSystemProperty(k)
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assert.NilError(t, err)
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assert.Check(t, is.Equal(newV, "10000"))
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// Restore value
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assert.Check(t, writeSystemProperty(k, v))
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}
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}
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