vitess.io/vitess@v0.16.2/go/vt/topo/test/keyspace.go (about)

     1  /*
     2  Copyright 2019 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package test
    18  
    19  import (
    20  	"testing"
    21  
    22  	"context"
    23  
    24  	"vitess.io/vitess/go/vt/topo"
    25  
    26  	topodatapb "vitess.io/vitess/go/vt/proto/topodata"
    27  )
    28  
    29  // checkKeyspace tests the keyspace part of the API
    30  func checkKeyspace(t *testing.T, ts *topo.Server) {
    31  	ctx := context.Background()
    32  	keyspaces, err := ts.GetKeyspaces(ctx)
    33  	if err != nil {
    34  		t.Errorf("GetKeyspaces(empty): %v", err)
    35  	}
    36  	if len(keyspaces) != 0 {
    37  		t.Errorf("len(GetKeyspaces()) != 0: %v", keyspaces)
    38  	}
    39  
    40  	if err := ts.CreateKeyspace(ctx, "test_keyspace", &topodatapb.Keyspace{}); err != nil {
    41  		t.Errorf("CreateKeyspace: %v", err)
    42  	}
    43  	if err := ts.CreateKeyspace(ctx, "test_keyspace", &topodatapb.Keyspace{}); !topo.IsErrType(err, topo.NodeExists) {
    44  		t.Errorf("CreateKeyspace(again) is not ErrNodeExists: %v", err)
    45  	}
    46  
    47  	// Delete and re-create.
    48  	if err := ts.DeleteKeyspace(ctx, "test_keyspace"); err != nil {
    49  		t.Errorf("DeleteKeyspace: %v", err)
    50  	}
    51  	if err := ts.DeleteKeyspace(ctx, "test_keyspace"); !topo.IsErrType(err, topo.NoNode) {
    52  		t.Errorf("DeleteKeyspace(again): %v", err)
    53  	}
    54  	if err := ts.CreateKeyspace(ctx, "test_keyspace", &topodatapb.Keyspace{}); err != nil {
    55  		t.Errorf("CreateKeyspace: %v", err)
    56  	}
    57  
    58  	keyspaces, err = ts.GetKeyspaces(ctx)
    59  	if err != nil {
    60  		t.Errorf("GetKeyspaces: %v", err)
    61  	}
    62  	if len(keyspaces) != 1 || keyspaces[0] != "test_keyspace" {
    63  		t.Errorf("GetKeyspaces: want %v, got %v", []string{"test_keyspace"}, keyspaces)
    64  	}
    65  
    66  	k := &topodatapb.Keyspace{
    67  		ServedFroms: []*topodatapb.Keyspace_ServedFrom{
    68  			{
    69  				TabletType: topodatapb.TabletType_REPLICA,
    70  				Cells:      []string{"c1", "c2"},
    71  				Keyspace:   "test_keyspace3",
    72  			},
    73  			{
    74  				TabletType: topodatapb.TabletType_PRIMARY,
    75  				Cells:      nil,
    76  				Keyspace:   "test_keyspace3",
    77  			},
    78  		},
    79  	}
    80  	if err := ts.CreateKeyspace(ctx, "test_keyspace2", k); err != nil {
    81  		t.Errorf("CreateKeyspace: %v", err)
    82  	}
    83  	keyspaces, err = ts.GetKeyspaces(ctx)
    84  	if err != nil {
    85  		t.Errorf("GetKeyspaces: %v", err)
    86  	}
    87  	if len(keyspaces) != 2 ||
    88  		keyspaces[0] != "test_keyspace" ||
    89  		keyspaces[1] != "test_keyspace2" {
    90  		t.Errorf("GetKeyspaces: want %v, got %v", []string{"test_keyspace", "test_keyspace2"}, keyspaces)
    91  	}
    92  
    93  	// Re-read and update. Have to lock it, because UpdateKeyspace
    94  	// checks for the keyspace lock.
    95  	storedKI, err := ts.GetKeyspace(ctx, "test_keyspace2")
    96  	if err != nil {
    97  		t.Fatalf("GetKeyspace: %v", err)
    98  	}
    99  	lockCtx, unlock, err := ts.LockKeyspace(ctx, "test_keyspace2", "fake-action")
   100  	if err != nil {
   101  		t.Fatalf("LockKeyspace: %v", err)
   102  	}
   103  	if err := ts.UpdateKeyspace(lockCtx, storedKI); err != nil {
   104  		t.Fatalf("UpdateKeyspace: %v", err)
   105  	}
   106  	unlock(&err)
   107  	if err != nil {
   108  		t.Fatalf("unlock(test_keyspace2): %v", err)
   109  	}
   110  
   111  	// And read again to make sure it's good.
   112  	_, err = ts.GetKeyspace(ctx, "test_keyspace2")
   113  	if err != nil {
   114  		t.Fatalf("GetKeyspace: %v", err)
   115  	}
   116  }