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package libkpod
import (
"io/ioutil"
"os"
"testing"
)
// TestConfigToFile ensures Config.ToFile(..) encodes and writes out
// a Config instance toa a file on disk.
func TestConfigToFile(t *testing.T) {
// Test with a default configuration
c := DefaultConfig()
tmpfile, err := ioutil.TempFile("", "config")
if err != nil {
t.Fatalf("Unable to create temporary file: %+v", err)
}
// Clean up temporary file
defer os.Remove(tmpfile.Name())
// Make the ToFile calls
err = c.ToFile(tmpfile.Name())
// Make sure no errors occurred while populating the file
if err != nil {
t.Fatalf("Unable to write to temporary file: %+v", err)
}
// Make sure the file is on disk
if _, err := os.Stat(tmpfile.Name()); os.IsNotExist(err) {
t.Fatalf("The config file was not written to disk: %+v", err)
}
}
// TestConfigUpdateFromFile ensures Config.UpdateFromFile(..) properly
// updates an already create Config instancec with new data.
func TestConfigUpdateFromFile(t *testing.T) {
// Test with a default configuration
c := DefaultConfig()
// Make the ToFile calls
err := c.UpdateFromFile("testdata/config.toml")
// Make sure no errors occurred while populating from the file
if err != nil {
t.Fatalf("Unable update config from file: %+v", err)
}
// Check fields that should have changed after UpdateFromFile
if c.Storage != "overlay2" {
t.Fatalf("Update failed. Storage did not change to overlay2")
}
if c.RuntimeConfig.PidsLimit != 2048 {
t.Fatalf("Update failed. RuntimeConfig.PidsLimit did not change to 2048")
}
}
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