69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
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package fs
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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)
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const (
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cgroupFile = "cgroup.file"
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floatValue = 2048.0
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floatString = "2048"
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)
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func TestGetCgroupParamsFloat64(t *testing.T) {
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// Setup tempdir.
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tempDir, err := ioutil.TempDir("", "cgroup_utils_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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tempFile := filepath.Join(tempDir, cgroupFile)
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// Success.
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err = ioutil.WriteFile(tempFile, []byte(floatString), 0755)
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if err != nil {
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t.Fatal(err)
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}
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value, err := getCgroupParamFloat64(tempDir, cgroupFile)
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if err != nil {
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t.Fatal(err)
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} else if value != floatValue {
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t.Fatalf("Expected %f to equal %f", value, floatValue)
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}
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// Success with new line.
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err = ioutil.WriteFile(tempFile, []byte(floatString+"\n"), 0755)
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if err != nil {
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t.Fatal(err)
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}
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value, err = getCgroupParamFloat64(tempDir, cgroupFile)
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if err != nil {
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t.Fatal(err)
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} else if value != floatValue {
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t.Fatalf("Expected %f to equal %f", value, floatValue)
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}
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// Not a float.
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err = ioutil.WriteFile(tempFile, []byte("not-a-float"), 0755)
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if err != nil {
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t.Fatal(err)
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}
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_, err = getCgroupParamFloat64(tempDir, cgroupFile)
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if err == nil {
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t.Fatal("Expecting error, got none")
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}
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// Unknown file.
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err = os.Remove(tempFile)
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if err != nil {
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t.Fatal(err)
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}
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_, err = getCgroupParamFloat64(tempDir, cgroupFile)
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if err == nil {
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t.Fatal("Expecting error, got none")
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}
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}
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