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cli_test.go
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cli_test.go
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//
// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package main
import (
"bytes"
"fmt"
"io"
"strings"
"testing"
"time"
sppb "cloud.google.com/go/spanner/apiv1/spannerpb"
"github.com/chzyer/readline"
"github.com/google/go-cmp/cmp"
)
type nopCloser struct {
io.Reader
}
func (n *nopCloser) Close() error {
return nil
}
func TestBuildCommands(t *testing.T) {
tests := []struct {
Input string
Expected []*command
ExpectError bool
}{
{Input: `SELECT * FROM t1;`, Expected: []*command{{&SelectStatement{"SELECT * FROM t1"}, false}}},
{Input: `CREATE TABLE t1;`, Expected: []*command{{&BulkDdlStatement{[]string{"CREATE TABLE t1"}}, false}}},
{
Input: `CREATE TABLE t1(pk INT64) PRIMARY KEY(pk); ALTER TABLE t1 ADD COLUMN col INT64; CREATE INDEX i1 ON t1(col); DROP INDEX i1; DROP TABLE t1;`,
Expected: []*command{{&BulkDdlStatement{[]string{
"CREATE TABLE t1(pk INT64) PRIMARY KEY(pk)",
"ALTER TABLE t1 ADD COLUMN col INT64",
"CREATE INDEX i1 ON t1(col)",
"DROP INDEX i1",
"DROP TABLE t1",
}}, false}},
},
{
Input: `CREATE TABLE t1(pk INT64) PRIMARY KEY(pk);
CREATE TABLE t2(pk INT64) PRIMARY KEY(pk);
SELECT * FROM t1\G
DROP TABLE t1;
DROP TABLE t2;
SELECT 1;`,
Expected: []*command{
{&BulkDdlStatement{[]string{"CREATE TABLE t1(pk INT64) PRIMARY KEY(pk)", "CREATE TABLE t2(pk INT64) PRIMARY KEY(pk)"}}, false},
{&SelectStatement{"SELECT * FROM t1"}, true},
{&BulkDdlStatement{[]string{"DROP TABLE t1", "DROP TABLE t2"}}, false},
{&SelectStatement{"SELECT 1"}, false},
},
},
{
Input: `
CREATE TABLE t1(pk INT64 /* NOT NULL*/, col INT64) PRIMARY KEY(pk);
INSERT t1(pk/*, col*/) VALUES(1/*, 2*/);
UPDATE t1 SET col = /* pk + */ col + 1 WHERE TRUE;
DELETE t1 WHERE TRUE /* AND pk = 1 */;
SELECT 0x1/**/A`,
Expected: []*command{
{&BulkDdlStatement{[]string{"CREATE TABLE t1(pk INT64 , col INT64) PRIMARY KEY(pk)"}}, false},
{&DmlStatement{"INSERT t1(pk/*, col*/) VALUES(1/*, 2*/)"}, false},
{&DmlStatement{"UPDATE t1 SET col = /* pk + */ col + 1 WHERE TRUE"}, false},
{&DmlStatement{"DELETE t1 WHERE TRUE /* AND pk = 1 */"}, false},
{&SelectStatement{"SELECT 0x1/**/A"}, false},
},
},
{
// spanner-cli don't permit empty statements.
Input: `SELECT 1; /* comment */; SELECT 2`,
ExpectError: true,
},
{
Input: `SELECT 1; /* comment 1 */; /* comment 2 */`,
ExpectError: true,
},
{
// A comment after the last semicolon is permitted.
Input: `SELECT 1; /* comment */`,
Expected: []*command{
{&SelectStatement{"SELECT 1"}, false},
},
},
}
for _, test := range tests {
got, err := buildCommands(test.Input)
if test.ExpectError && err == nil {
t.Errorf("expect error but not error, input: %v", test.Input)
}
if !test.ExpectError && err != nil {
t.Errorf("err: %v, input: %v", err, test.Input)
}
if !cmp.Equal(got, test.Expected) {
t.Errorf("invalid result: %v", cmp.Diff(test.Expected, got))
}
}
}
func TestReadInteractiveInput(t *testing.T) {
for _, tt := range []struct {
desc string
input string
want *inputStatement
wantError bool
}{
{
desc: "single line",
input: "SELECT 1;\n",
want: &inputStatement{
statement: "SELECT 1",
statementWithoutComments: "SELECT 1",
delim: delimiterHorizontal,
},
},
{
desc: "multi lines",
input: "SELECT\n* FROM\n t1\n;\n",
want: &inputStatement{
statement: "SELECT\n* FROM\n t1",
statementWithoutComments: "SELECT\n* FROM\n t1",
delim: delimiterHorizontal,
},
},
{
desc: "multi lines with vertical delimiter",
input: "SELECT\n* FROM\n t1\\G\n",
want: &inputStatement{
statement: "SELECT\n* FROM\n t1",
statementWithoutComments: "SELECT\n* FROM\n t1",
delim: delimiterVertical,
},
},
{
desc: "multi lines with multiple comments",
input: "SELECT\n/* comment */1,\n# comment\n2;\n",
want: &inputStatement{
statement: "SELECT\n/* comment */1,\n# comment\n2",
statementWithoutComments: "SELECT\n 1,\n 2",
delim: delimiterHorizontal,
},
},
{
desc: "multiple statements",
input: "SELECT 1; SELECT 2;",
want: nil,
wantError: true,
},
} {
t.Run(tt.desc, func(t *testing.T) {
rl, err := readline.NewEx(&readline.Config{
Stdin: io.NopCloser(strings.NewReader(tt.input)),
Stdout: io.Discard,
Stderr: io.Discard,
})
if err != nil {
t.Fatalf("unexpected readline.NewEx() error: %v", err)
}
got, err := readInteractiveInput(rl, "")
if err != nil && !tt.wantError {
t.Errorf("readInteractiveInput(%q) got error: %v", tt.input, err)
}
if diff := cmp.Diff(tt.want, got, cmp.AllowUnexported(inputStatement{})); diff != "" {
t.Errorf("difference in statement: (-want +got):\n%s", diff)
}
})
}
}
func TestPrintResult(t *testing.T) {
t.Run("DisplayModeTable", func(t *testing.T) {
out := &bytes.Buffer{}
result := &Result{
ColumnNames: []string{"foo", "bar"},
Rows: []Row{
{[]string{"1", "2"}},
{[]string{"3", "4"}},
},
IsMutation: false,
}
printResult(out, result, DisplayModeTable, false, false)
expected := strings.TrimPrefix(`
+-----+-----+
| foo | bar |
+-----+-----+
| 1 | 2 |
| 3 | 4 |
+-----+-----+
`, "\n")
got := out.String()
if got != expected {
t.Errorf("invalid print: expected = %s, but got = %s", expected, got)
}
})
t.Run("DisplayModeVertical", func(t *testing.T) {
out := &bytes.Buffer{}
result := &Result{
ColumnNames: []string{"foo", "bar"},
Rows: []Row{
{[]string{"1", "2"}},
{[]string{"3", "4"}},
},
IsMutation: false,
}
printResult(out, result, DisplayModeVertical, false, false)
expected := strings.TrimPrefix(`
*************************** 1. row ***************************
foo: 1
bar: 2
*************************** 2. row ***************************
foo: 3
bar: 4
`, "\n")
got := out.String()
if got != expected {
t.Errorf("invalid print: expected = %s, but got = %s", expected, got)
}
})
t.Run("DisplayModeTab", func(t *testing.T) {
out := &bytes.Buffer{}
result := &Result{
ColumnNames: []string{"foo", "bar"},
Rows: []Row{
{[]string{"1", "2"}},
{[]string{"3", "4"}},
},
IsMutation: false,
}
printResult(out, result, DisplayModeTab, false, false)
expected := "foo\tbar\n" +
"1\t2\n" +
"3\t4\n"
got := out.String()
if got != expected {
t.Errorf("invalid print: expected = %s, but got = %s", expected, got)
}
})
}
func TestResultLine(t *testing.T) {
timestamp := "2020-04-01T15:00:00.999999999+09:00"
ts, err := time.Parse(time.RFC3339Nano, timestamp)
if err != nil {
t.Fatalf("unexpected time.Parse error: %v", err)
}
for _, tt := range []struct {
desc string
result *Result
verbose bool
want string
}{
{
desc: "mutation in normal mode",
result: &Result{
AffectedRows: 3,
IsMutation: true,
Stats: QueryStats{
ElapsedTime: "10 msec",
},
},
verbose: false,
want: "Query OK, 3 rows affected (10 msec)\n",
},
{
desc: "mutation in verbose mode (timestamp exist)",
result: &Result{
AffectedRows: 3,
IsMutation: true,
Stats: QueryStats{
ElapsedTime: "10 msec",
},
Timestamp: ts,
},
verbose: true,
want: fmt.Sprintf("Query OK, 3 rows affected (10 msec)\ntimestamp: %s\n", timestamp),
},
{
desc: "mutation in verbose mode (both of timestamp and mutation count exist)",
result: &Result{
AffectedRows: 3,
IsMutation: true,
Stats: QueryStats{
ElapsedTime: "10 msec",
},
CommitStats: &sppb.CommitResponse_CommitStats{MutationCount: 6},
Timestamp: ts,
},
verbose: true,
want: fmt.Sprintf("Query OK, 3 rows affected (10 msec)\ntimestamp: %s\nmutation_count: 6\n", timestamp),
},
{
desc: "mutation in verbose mode (timestamp not exist)",
result: &Result{
AffectedRows: 0,
IsMutation: true,
Stats: QueryStats{
ElapsedTime: "10 msec",
},
},
verbose: true,
want: "Query OK, 0 rows affected (10 msec)\n",
},
{
desc: "query in normal mode (rows exist)",
result: &Result{
AffectedRows: 3,
IsMutation: false,
Stats: QueryStats{
ElapsedTime: "10 msec",
},
},
verbose: false,
want: "3 rows in set (10 msec)\n",
},
{
desc: "query in normal mode (no rows exist)",
result: &Result{
AffectedRows: 0,
IsMutation: false,
Stats: QueryStats{
ElapsedTime: "10 msec",
},
},
verbose: false,
want: "Empty set (10 msec)\n",
},
{
desc: "query in verbose mode (all stats fields exist)",
result: &Result{
AffectedRows: 3,
IsMutation: false,
Stats: QueryStats{
ElapsedTime: "10 msec",
CPUTime: "5 msec",
RowsScanned: "10",
RowsReturned: "3",
DeletedRowsScanned: "1",
OptimizerVersion: "2",
OptimizerStatisticsPackage: "auto_20210829_05_22_28UTC",
},
Timestamp: ts,
},
verbose: true,
want: fmt.Sprintf(`3 rows in set (10 msec)
timestamp: %s
cpu time: 5 msec
rows scanned: 10 rows
deleted rows scanned: 1 rows
optimizer version: 2
optimizer statistics: auto_20210829_05_22_28UTC
`, timestamp),
},
{
desc: "query in verbose mode (only stats fields supported by Cloud Spanner Emulator)",
result: &Result{
AffectedRows: 3,
IsMutation: false,
Stats: QueryStats{
ElapsedTime: "10 msec",
RowsReturned: "3",
},
Timestamp: ts,
},
verbose: true,
want: fmt.Sprintf("3 rows in set (10 msec)\ntimestamp: %s\n", timestamp),
},
} {
t.Run(tt.desc, func(t *testing.T) {
if got := resultLine(tt.result, tt.verbose); tt.want != got {
t.Errorf("resultLine(%v, %v) = %q, but want = %q", tt.result, tt.verbose, got, tt.want)
}
})
}
}