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Adding a unit test to catch offset scenarios

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Signed-off-by: Abhinandan Prativadi <abhi@docker.com>
This commit is contained in:
Abhinandan Prativadi 2017-06-09 14:19:53 -07:00
parent 7ae2b025be
commit 746070c39a
1 changed files with 68 additions and 28 deletions
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96
libnetwork/bitseq/sequence_test.go
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@ -157,42 +157,45 @@ func TestGetFirstAvailable(t *testing.T) {
mask *sequence
bytePos uint64
bitPos uint64
start uint64
}{
{&sequence{block: 0xffffffff, count: 2048}, invalidPos, invalidPos},
{&sequence{block: 0x0, count: 8}, 0, 0},
{&sequence{block: 0x80000000, count: 8}, 0, 1},
{&sequence{block: 0xC0000000, count: 8}, 0, 2},
{&sequence{block: 0xE0000000, count: 8}, 0, 3},
{&sequence{block: 0xF0000000, count: 8}, 0, 4},
{&sequence{block: 0xF8000000, count: 8}, 0, 5},
{&sequence{block: 0xFC000000, count: 8}, 0, 6},
{&sequence{block: 0xFE000000, count: 8}, 0, 7},
{&sequence{block: 0xffffffff, count: 2048}, invalidPos, invalidPos, 0},
{&sequence{block: 0x0, count: 8}, 0, 0, 0},
{&sequence{block: 0x80000000, count: 8}, 0, 1, 0},
{&sequence{block: 0xC0000000, count: 8}, 0, 2, 0},
{&sequence{block: 0xE0000000, count: 8}, 0, 3, 0},
{&sequence{block: 0xF0000000, count: 8}, 0, 4, 0},
{&sequence{block: 0xF8000000, count: 8}, 0, 5, 0},
{&sequence{block: 0xFC000000, count: 8}, 0, 6, 0},
{&sequence{block: 0xFE000000, count: 8}, 0, 7, 0},
{&sequence{block: 0xFE000000, count: 8}, 3, 0, 24},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0x00000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0x80000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 1},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xC0000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 2},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xE0000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 3},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xF0000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 4},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xF8000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 5},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFC000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 6},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFE000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 7},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0x00000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 0, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0x80000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 1, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xC0000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 2, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xE0000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 3, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xF0000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 4, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xF8000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 5, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFC000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 6, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFE000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 7, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0x0E000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 4, 0, 16},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFF000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFF800000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 1},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFC00000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 2},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFE00000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 3},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFF00000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 4},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFF80000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 5},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFFC0000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 6},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFFE0000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 7},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFF000000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 0, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFF800000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 1, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFC00000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 2, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFE00000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 3, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFF00000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 4, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFF80000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 5, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFFC0000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 6, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xFFFE0000, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 5, 7, 0},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xfffffffe, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 7, 7},
{&sequence{block: 0xffffffff, count: 1, next: &sequence{block: 0xfffffffe, count: 1, next: &sequence{block: 0xffffffff, count: 6}}}, 7, 7, 0},
{&sequence{block: 0xffffffff, count: 2, next: &sequence{block: 0x0, count: 6}}, 8, 0},
{&sequence{block: 0xffffffff, count: 2, next: &sequence{block: 0x0, count: 6}}, 8, 0, 0},
}
for n, i := range input {
bytePos, bitPos, _ := getFirstAvailable(i.mask, 0)
bytePos, bitPos, _ := getFirstAvailable(i.mask, i.start)
if bytePos != i.bytePos || bitPos != i.bitPos {
t.Fatalf("Error in (%d) getFirstAvailable(). Expected (%d, %d). Got (%d, %d)", n, i.bytePos, i.bitPos, bytePos, bitPos)
}
@ -625,6 +628,43 @@ func TestSetUnset(t *testing.T) {
}
}
func TestOffsetSetUnset(t *testing.T) {
numBits := uint64(32 * blockLen)
var o uint64
hnd, err := NewHandle("", nil, "", numBits)
if err != nil {
t.Fatal(err)
}
// set and unset all one by one
for hnd.Unselected() > 0 {
if _, err := hnd.SetAny(); err != nil {
t.Fatal(err)
}
}
if _, err := hnd.SetAny(); err != ErrNoBitAvailable {
t.Fatal("Expected error. Got success")
}
if _, err := hnd.SetAnyInRange(10, 20); err != ErrNoBitAvailable {
t.Fatal("Expected error. Got success")
}
if err := hnd.Unset(288); err != nil {
t.Fatal(err)
}
//At this point sequence is (0xffffffff, 9)->(0x7fffffff, 1)->(0xffffffff, 22)->end
if o, err = hnd.SetAnyInRange(32, 500); err != nil {
t.Fatal(err)
}
if o != 288 {
t.Fatalf("Expected ordinal not received, Received:%d", o)
}
}
func TestSetInRange(t *testing.T) {
numBits := uint64(1024 * blockLen)
hnd, err := NewHandle("", nil, "", numBits)