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dataDir needs maxima calculation to be correct (#13715)

Browse Source 
there is a corner case where the new check
doesn't work where dataDir has changed, especially
when xl.json -> xl.meta healing happens, if some
healing is partial this can make certain backend
files unreadable.

This PR fixes and updates unit-tests
This commit is contained in:
Harshavardhana
2021-11-20 11:26:30 -08:00
committed by GitHub
parent 1e72e9b1cd
commit 36b5426f6e
2 changed files with 49 additions and 18 deletions
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50
cmd/erasure-healing-common_test.go
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@@ -34,8 +34,10 @@ import (
func TestCommonTime(t *testing.T) {
// List of test cases for common modTime.
testCases := []struct {
times []time.Time
time time.Time
times []time.Time
dataDirs []string
time time.Time
dataDir string
}{
{
// 1. Tests common times when slice has varying time elements.
@@ -47,7 +49,17 @@ func TestCommonTime(t *testing.T) {
time.Unix(0, 2).UTC(),
time.Unix(0, 3).UTC(),
time.Unix(0, 1).UTC(),
}, time.Unix(0, 3).UTC(),
}, []string{
errorDir,
delMarkerDir,
"cd3b36c0-49e6-11ec-8087-73a2b2fd4016",
"cd3b36c0-49e6-11ec-8087-73a2b2fd4016",
"cd3b36c0-49e6-11ec-8087-73a2b2fd4016",
"cd3b36c0-49e6-11ec-8087-73a2b2fd4016",
"cd3b36c0-49e6-11ec-8087-73a2b2fd4016",
},
time.Unix(0, 3).UTC(),
"cd3b36c0-49e6-11ec-8087-73a2b2fd4016",
},
{
// 2. Tests common time obtained when all elements are equal.
@@ -59,7 +71,17 @@ func TestCommonTime(t *testing.T) {
time.Unix(0, 3).UTC(),
time.Unix(0, 3).UTC(),
time.Unix(0, 3).UTC(),
}, time.Unix(0, 3).UTC(),
}, []string{
errorDir,
delMarkerDir,
delMarkerDir,
delMarkerDir,
delMarkerDir,
delMarkerDir,
delMarkerDir,
},
time.Unix(0, 3).UTC(),
delMarkerDir,
},
{
// 3. Tests common time obtained when elements have a mixture
@@ -75,7 +97,17 @@ func TestCommonTime(t *testing.T) {
timeSentinel,
timeSentinel,
timeSentinel,
}, time.Unix(0, 3).UTC(),
}, []string{
errorDir,
delMarkerDir,
delMarkerDir,
delMarkerDir,
delMarkerDir,
delMarkerDir,
delMarkerDir,
},
time.Unix(0, 3).UTC(),
delMarkerDir,
},
}
@@ -83,9 +115,13 @@ func TestCommonTime(t *testing.T) {
// common modtime. Tests fail if modtime does not match.
for i, testCase := range testCases {
// Obtain a common mod time from modTimes slice.
ctime, _ := commonTime(testCase.times, nil)
ctime, dataDir := commonTime(testCase.times, testCase.dataDirs)
if !testCase.time.Equal(ctime) {
t.Fatalf("Test case %d, expect to pass but failed. Wanted modTime: %s, got modTime: %s\n", i+1, testCase.time, ctime)
t.Errorf("Test case %d, expect to pass but failed. Wanted modTime: %s, got modTime: %s\n", i+1, testCase.time, ctime)
continue
}
if dataDir != testCase.dataDir {
t.Errorf("Test case %d, expect to pass but failed. Wanted dataDir: %s, got dataDir: %s\n", i+1, testCase.dataDir, dataDir)
}
}
}