52 lines
1.0 KiB
Go
52 lines
1.0 KiB
Go
package bookfile
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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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)
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func TestContains(t *testing.T) {
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dir := t.TempDir()
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sub := filepath.Join(dir, "sub")
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if err := os.MkdirAll(sub, 0o755); err != nil {
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t.Fatal(err)
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}
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if !Contains(dir, sub) {
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t.Fatal("sub should be inside dir")
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}
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if Contains(sub, dir) {
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t.Fatal("dir should not be inside sub")
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}
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if Contains(dir, "/completely/different") {
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t.Fatal("unrelated path should not be inside dir")
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}
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// Same path.
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if !Contains(dir, dir) {
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t.Fatal("dir should contain itself")
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}
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}
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func TestOpenReaderAt(t *testing.T) {
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dir := t.TempDir()
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// Create a test file.
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path := filepath.Join(dir, "test.txt")
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if err := os.WriteFile(path, []byte("hello"), 0o644); err != nil {
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t.Fatal(err)
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}
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f, size, err := OpenReaderAt(dir, "test.txt")
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if err != nil {
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t.Fatal(err)
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}
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defer f.Close()
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if size != 5 {
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t.Fatalf("size = %d, want 5", size)
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}
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// Non-existent file.
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_, _, err = OpenReaderAt(dir, "nope.txt")
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if err == nil {
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t.Fatal("expected error for non-existent file")
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}
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}
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