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VReplication: refactor denied tables unit test, add couple more tests (…
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…#15995)

Signed-off-by: Rohit Nayak <[email protected]>
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@rohit-nayak-ps
rohit-nayak-ps authored May 27, 2024
1 parent 3773563 commit 4321194
Showing 1 changed file with 131 additions and 52 deletions.
183 changes: 131 additions & 52 deletions go/vt/topo/shard_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -140,69 +140,148 @@ func TestUpdateSourcePrimaryDeniedTables(t *testing.T) {

func TestUpdateSourceDeniedTables(t *testing.T) {
si := NewShardInfo("ks", "sh", &topodatapb.Shard{}, nil)

// check we enforce the keyspace lock
ctx := context.Background()
if err := si.UpdateDeniedTables(ctx, topodatapb.TabletType_RDONLY, nil, false, nil); err == nil || err.Error() != "keyspace ks is not locked (no locksInfo)" {
t.Fatalf("unlocked keyspace produced wrong error: %v", err)
ctxWithLock := lockedKeyspaceContext("ks")

type testCase struct {
name string
ctx context.Context
tabletType topodatapb.TabletType
cells []string
remove bool
tables []string

wantError string
wantTabletControl *topodatapb.Shard_TabletControl
}
ctx = lockedKeyspaceContext("ks")

// add one cell
if err := si.UpdateDeniedTables(ctx, topodatapb.TabletType_RDONLY, []string{"first"}, false, []string{"t1", "t2"}); err != nil || !reflect.DeepEqual(si.TabletControls, []*topodatapb.Shard_TabletControl{
// These tests update the state of the shard tablet controls, so subsequent tests
// depend on the cumulative state from the previous tests.
testCases := []testCase{
{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first"},
DeniedTables: []string{"t1", "t2"},
},
}) {
t.Fatalf("one cell add failed: %v", si)
}
name: "enforce keyspace lock",
ctx: ctx,
tabletType: topodatapb.TabletType_RDONLY,
cells: []string{"first"},

// remove that cell, going back
if err := si.UpdateDeniedTables(ctx, topodatapb.TabletType_RDONLY, []string{"first"}, true, nil); err != nil || len(si.TabletControls) != 0 {
t.Fatalf("going back should have remove the record: %v", si)
}

// re-add a cell, then another with different table list to
// make sure it fails
if err := si.UpdateDeniedTables(ctx, topodatapb.TabletType_RDONLY, []string{"first"}, false, []string{"t1", "t2"}); err != nil {
t.Fatalf("one cell add failed: %v", si)
}
if err := si.UpdateDeniedTables(ctx, topodatapb.TabletType_RDONLY, []string{"second"}, false, []string{"t2", "t3"}); err == nil || err.Error() != "trying to use two different sets of denied tables for shard ks/sh: [t1 t2] and [t2 t3]" {
t.Fatalf("different table list should fail: %v", err)
}
// add another cell, see the list grow
if err := si.UpdateDeniedTables(ctx, topodatapb.TabletType_RDONLY, []string{"second"}, false, []string{"t1", "t2"}); err != nil || !reflect.DeepEqual(si.TabletControls, []*topodatapb.Shard_TabletControl{
wantError: "keyspace ks is not locked (no locksInfo)",
},
{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first", "second"},
DeniedTables: []string{"t1", "t2"},
name: "add one cell",
tabletType: topodatapb.TabletType_RDONLY,
cells: []string{"first"},
tables: []string{"t1", "t2"},
wantTabletControl: &topodatapb.Shard_TabletControl{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first"},
DeniedTables: []string{"t1", "t2"},
},
},
}) {
t.Fatalf("second cell add failed: %v", si)
}

// add all cells, see the list grow to all
if err := si.UpdateDeniedTables(ctx, topodatapb.TabletType_RDONLY, []string{"first", "second", "third"}, false, []string{"t1", "t2"}); err != nil || !reflect.DeepEqual(si.TabletControls, []*topodatapb.Shard_TabletControl{
{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first", "second", "third"},
DeniedTables: []string{"t1", "t2"},
name: "remove the only cell",
tabletType: topodatapb.TabletType_RDONLY,
cells: []string{"first"},
remove: true,
},
{
name: "re-add cell",
tabletType: topodatapb.TabletType_RDONLY,
cells: []string{"first"},
tables: []string{"t1", "t2"},
wantTabletControl: &topodatapb.Shard_TabletControl{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first"},
DeniedTables: []string{"t1", "t2"},
},
},
}) {
t.Fatalf("all cells add failed: %v", si)
}

// remove one cell from the full list
if err := si.UpdateDeniedTables(ctx, topodatapb.TabletType_RDONLY, []string{"second"}, true, []string{"t1", "t2"}); err != nil || !reflect.DeepEqual(si.TabletControls, []*topodatapb.Shard_TabletControl{
{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first", "third"},
DeniedTables: []string{"t1", "t2"},
name: "re-add existing cell, different tables, should fail",
tabletType: topodatapb.TabletType_RDONLY,
cells: []string{"first"},
tables: []string{"t3"},
wantError: "trying to use two different sets of denied tables for shard",
},
}) {
t.Fatalf("one cell removal from all failed: %v", si)
{
name: "add all cells, see cell list grow to all",
tabletType: topodatapb.TabletType_RDONLY,
cells: []string{"first", "second", "third"},
tables: []string{"t1", "t2"},
wantTabletControl: &topodatapb.Shard_TabletControl{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first", "second", "third"},
DeniedTables: []string{"t1", "t2"},
},
},
{
name: "remove one cell",
tabletType: topodatapb.TabletType_RDONLY,
cells: []string{"second"},
remove: true,
tables: []string{"t1", "t2"},
wantTabletControl: &topodatapb.Shard_TabletControl{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first", "third"},
DeniedTables: []string{"t1", "t2"},
},
},
{
name: "add replica tablet type",
tabletType: topodatapb.TabletType_REPLICA,
cells: []string{"first"},
tables: []string{"t1", "t2"},
wantTabletControl: &topodatapb.Shard_TabletControl{
TabletType: topodatapb.TabletType_REPLICA,
Cells: []string{"first"},
DeniedTables: []string{"t1", "t2"},
},
},
{
name: "confirm rdonly still stays the same, after replica was added",
tabletType: topodatapb.TabletType_RDONLY,
wantTabletControl: &topodatapb.Shard_TabletControl{
TabletType: topodatapb.TabletType_RDONLY,
Cells: []string{"first", "third"},
DeniedTables: []string{"t1", "t2"},
},
},
{
name: "remove rdonly entry",
tabletType: topodatapb.TabletType_RDONLY,
cells: []string{"first", "third"},
remove: true,
tables: []string{"t1", "t2"},
},
{
name: "remove replica entry",
tabletType: topodatapb.TabletType_REPLICA,
cells: []string{"first", "third"},
remove: true,
tables: []string{"t1", "t2"},
},
}

for _, tcase := range testCases {
t.Run(tcase.name, func(t *testing.T) {
if tcase.ctx == nil {
tcase.ctx = ctxWithLock
}
var err error
if tcase.tables != nil || tcase.cells != nil {
err = si.UpdateDeniedTables(tcase.ctx, tcase.tabletType, tcase.cells, tcase.remove, tcase.tables)
}
if tcase.wantError != "" {
require.Error(t, err)
require.Contains(t, err.Error(), tcase.wantError)
return
}
require.NoError(t, err)
if tcase.wantTabletControl == nil {
require.Nil(t, si.GetTabletControl(tcase.tabletType))
} else {
require.EqualValuesf(t, tcase.wantTabletControl, si.GetTabletControl(tcase.tabletType),
"want: %v, got: %v", tcase.wantTabletControl, si.GetTabletControl(tcase.tabletType))
}
})
}
}

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