wehub-resource-sync
36 lines
775 B
Go
36 lines
775 B
Go
package main
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import (
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"os"
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"path/filepath"
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"testing"
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"loov.dev/lensm/internal/atomicfile"
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)
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func TestAtomicWriteFileReplacesContentsAndCleansTemporaryFile(t *testing.T) {
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dir := t.TempDir()
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path := filepath.Join(dir, "config.json")
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if err := os.WriteFile(path, []byte("old"), 0o644); err != nil {
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t.Fatal(err)
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}
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if err := atomicfile.Write(path, []byte("new"), 0o644); err != nil {
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t.Fatal(err)
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}
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data, err := os.ReadFile(path)
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if err != nil {
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t.Fatal(err)
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}
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if got := string(data); got != "new" {
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t.Fatalf("settings contents = %q, want new", got)
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}
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matches, err := filepath.Glob(filepath.Join(dir, ".lensm-settings-*.tmp"))
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if err != nil {
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t.Fatal(err)
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}
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if len(matches) != 0 {
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t.Fatalf("temporary settings files remain: %v", matches)
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}
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}
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