diff options
Diffstat (limited to 'tests/test_helpers')
| -rw-r--r-- | tests/test_helpers/helpers.go | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tests/test_helpers/helpers.go b/tests/test_helpers/helpers.go index a6c2b7d..02b9fe0 100644 --- a/tests/test_helpers/helpers.go +++ b/tests/test_helpers/helpers.go @@ -283,3 +283,14 @@ func VerifyExistence(path string) bool { } return false } + +// Du returns the disk usage of the file "fd" points to, in bytes. +// Same as "du --block-size=1". +func Du(t *testing.T, fd int) (nBytes int64, nBlocks int64) { + var st syscall.Stat_t + err := syscall.Fstat(fd, &st) + if err != nil { + t.Fatal(err) + } + return st.Blocks * st.Blksize, st.Blocks +} |