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tablet_integration_test.go: Integration tests checking if TokenAwareHostPolicy and shard awareness works correctly when using tablets, and if adding new table changes tablets table. tablet_test.go: Unit tests checking if searching in tablets list works correctly.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| //go:build tablet | ||
| // +build tablet | ||
|
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||
| package gocql | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "fmt" | ||
| "regexp" | ||
| "strings" | ||
| "testing" | ||
| ) | ||
|
|
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| // Check if TokenAwareHostPolicy works correctly when using tablets | ||
| func TestTablets(t *testing.T) { | ||
| cluster := createMultiNodeCluster() | ||
|
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| fallback := RoundRobinHostPolicy() | ||
| cluster.PoolConfig.HostSelectionPolicy = TokenAwareHostPolicy(fallback) | ||
|
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| session := createSessionFromMultiNodeCluster(cluster, t) | ||
| defer session.Close() | ||
|
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| if err := createTable(session, fmt.Sprintf(`CREATE TABLE %s.%s (pk int, ck int, v int, PRIMARY KEY (pk, ck)); | ||
| `, "test1", "table1")); err != nil { | ||
| panic(fmt.Sprintf("unable to create table: %v", err)) | ||
| } | ||
|
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| hosts, _, err := session.hostSource.GetHosts() | ||
| assertTrue(t, "err == nil", err == nil) | ||
|
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| hostAddresses := []string{} | ||
| for _, host := range hosts { | ||
| hostAddresses = append(hostAddresses, host.connectAddress.String()) | ||
| } | ||
|
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| ctx := context.Background() | ||
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| i := 0 | ||
| for i < 50 { | ||
| i = i + 1 | ||
| err = session.Query(`INSERT INTO test1.table1 (pk, ck, v) VALUES (?, ?, ?);`, i, i%5, i%2).WithContext(ctx).Exec() | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| } | ||
|
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| i = 0 | ||
| for i < 50 { | ||
| i = i + 1 | ||
|
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| var pk int | ||
| var ck int | ||
| var v int | ||
|
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| buf := &bytes.Buffer{} | ||
| trace := NewTraceWriter(session, buf) | ||
|
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| err = session.Query(`SELECT pk, ck, v FROM test1.table1 WHERE pk = ?;`, i).WithContext(ctx).Consistency(One).Trace(trace).Scan(&pk, &ck, &v) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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||
| queriedHosts := 0 | ||
| for _, hostAddress := range hostAddresses { | ||
| if strings.Contains(buf.String(), hostAddress) { | ||
| queriedHosts = queriedHosts + 1 | ||
| } | ||
| } | ||
|
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| assertEqual(t, "queriedHosts", 1, queriedHosts) | ||
| } | ||
| } | ||
|
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| // Check if shard awareness works correctly when using tablets | ||
| func TestTabletsShardAwareness(t *testing.T) { | ||
| cluster := createMultiNodeCluster() | ||
|
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| fallback := RoundRobinHostPolicy() | ||
| cluster.PoolConfig.HostSelectionPolicy = TokenAwareHostPolicy(fallback) | ||
|
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| session := createSessionFromMultiNodeCluster(cluster, t) | ||
| defer session.Close() | ||
|
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| if err := createTable(session, fmt.Sprintf(`CREATE TABLE %s.%s (pk int, ck int, v int, PRIMARY KEY (pk, ck)); | ||
| `, "test1", "table_shard")); err != nil { | ||
| panic(fmt.Sprintf("unable to create table: %v", err)) | ||
| } | ||
|
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| ctx := context.Background() | ||
|
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| i := 0 | ||
| for i < 50 { | ||
| i = i + 1 | ||
| err := session.Query(`INSERT INTO test1.table_shard (pk, ck, v) VALUES (?, ?, ?);`, i, i%5, i%2).WithContext(ctx).Exec() | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| } | ||
|
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| i = 0 | ||
| for i < 50 { | ||
| i = i + 1 | ||
|
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| var pk int | ||
| var ck int | ||
| var v int | ||
|
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| buf := &bytes.Buffer{} | ||
| trace := NewTraceWriter(session, buf) | ||
|
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| err := session.Query(`SELECT pk, ck, v FROM test1.table_shard WHERE pk = ?;`, i).WithContext(ctx).Consistency(One).Trace(trace).Scan(&pk, &ck, &v) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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| re := regexp.MustCompile(`\[shard .*\]`) | ||
|
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| shards := re.FindAllString(buf.String(), -1) | ||
|
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| // find duplicates to check how many shards are used | ||
| allShards := make(map[string]bool) | ||
| shardList := []string{} | ||
| for _, item := range shards { | ||
| if _, value := allShards[item]; !value { | ||
| allShards[item] = true | ||
| shardList = append(shardList, item) | ||
| } | ||
| } | ||
|
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| assertEqual(t, "shardList", 1, len(shardList)) | ||
| } | ||
| } |
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