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package clients
import (
"context"
"errors"
"testing"
"time"
"github.com/mimecast/dtail/internal/clients/connectors"
"github.com/mimecast/dtail/internal/clients/handlers"
"github.com/mimecast/dtail/internal/config"
"github.com/mimecast/dtail/internal/omode"
sessionspec "github.com/mimecast/dtail/internal/session"
)
func TestParseInteractiveCommandForGrepReload(t *testing.T) {
current := config.Args{
Mode: omode.GrepClient,
What: "/var/log/app.log",
RegexStr: "ERROR",
}
command, err := parseInteractiveCommand(current,
`:reload --grep WARN --before 2 --after 3 --max 4 --invert --files "/tmp/other.log" --plain --quiet --timeout 7`)
if err != nil {
t.Fatalf("parseInteractiveCommand() error = %v", err)
}
if command.kind != "reload" {
t.Fatalf("command kind = %q, want reload", command.kind)
}
if command.next.What != "/tmp/other.log" {
t.Fatalf("files = %q, want /tmp/other.log", command.next.What)
}
if command.next.RegexStr != "WARN" {
t.Fatalf("regex = %q, want WARN", command.next.RegexStr)
}
if !command.next.RegexInvert || !command.next.Plain || !command.next.Quiet {
t.Fatalf("expected invert/plain/quiet flags to be set: %#v", command.next)
}
if command.next.LContext.BeforeContext != 2 || command.next.LContext.AfterContext != 3 || command.next.LContext.MaxCount != 4 {
t.Fatalf("unexpected context values: %#v", command.next.LContext)
}
if command.spec.Regex != "WARN" {
t.Fatalf("session spec regex = %q, want WARN", command.spec.Regex)
}
}
func TestParseInteractiveCommandForMapReloadDerivesRegex(t *testing.T) {
current := config.Args{
Mode: omode.MapClient,
What: "/var/log/app.log",
QueryStr: "select count(status) from stats group by status",
}
command, err := parseInteractiveCommand(current,
`:reload --query "select count(status) from warnings group by status" --files /tmp/new.log --plain --timeout 9`)
if err != nil {
t.Fatalf("parseInteractiveCommand() error = %v", err)
}
if command.kind != "reload" {
t.Fatalf("command kind = %q, want reload", command.kind)
}
if command.next.QueryStr != "select count(status) from warnings group by status" {
t.Fatalf("query = %q", command.next.QueryStr)
}
if command.spec.Regex != "\\|MAPREDUCE:WARNINGS\\|" {
t.Fatalf("session spec regex = %q, want WARNINGS table regex", command.spec.Regex)
}
}
func TestParseInteractiveCommandRejectsUnterminatedQuotes(t *testing.T) {
current := config.Args{
Mode: omode.MapClient,
QueryStr: "select count(status) from stats group by status",
}
if _, err := parseInteractiveCommand(current, `:reload --query "select count(status) from stats`); err == nil {
t.Fatalf("expected parseInteractiveCommand() to reject unterminated quoted input")
}
}
func TestApplyInteractiveReloadRejectsUnsupportedConnections(t *testing.T) {
client := &baseClient{
Args: config.Args{
Mode: omode.GrepClient,
What: "/var/log/app.log",
RegexStr: "ERROR",
},
sessionSpec: SessionSpec{
Mode: omode.GrepClient,
Files: []string{"/var/log/app.log"},
Regex: "ERROR",
},
connections: []connectors.Connector{
&interactiveReloadConnector{server: "srv1", supported: false},
},
}
err := client.applyInteractiveReload(config.Args{
Mode: omode.GrepClient,
What: "/tmp/next.log",
RegexStr: "WARN",
}, SessionSpec{
Mode: omode.GrepClient,
Files: []string{"/tmp/next.log"},
Regex: "WARN",
})
if !errors.Is(err, connectors.ErrSessionUnsupported) {
t.Fatalf("expected ErrSessionUnsupported, got %v", err)
}
if client.Args.What != "/var/log/app.log" || client.sessionSpec.Regex != "ERROR" {
t.Fatalf("client state changed on unsupported reload: args=%#v spec=%#v", client.Args, client.sessionSpec)
}
}
func TestApplyInteractiveReloadCommitsSharedState(t *testing.T) {
connA := &interactiveReloadConnector{server: "srv1", supported: true, generation: 4}
connB := &interactiveReloadConnector{server: "srv2", supported: true, generation: 4}
maker := &interactiveReloadMaker{}
client := &baseClient{
Args: config.Args{
Mode: omode.MapClient,
What: "/var/log/app.log",
QueryStr: "select count(status) from stats group by status",
},
sessionSpec: SessionSpec{
Mode: omode.MapClient,
Files: []string{"/var/log/app.log"},
Query: "select count(status) from stats group by status",
Regex: "\\|MAPREDUCE:STATS\\|",
},
connections: []connectors.Connector{connA, connB},
maker: maker,
}
nextArgs := config.Args{
Mode: omode.MapClient,
What: "/tmp/new.log",
QueryStr: "select count(status) from warnings group by status",
Plain: true,
Timeout: 5,
}
nextSpec := SessionSpec{
Mode: omode.MapClient,
Files: []string{"/tmp/new.log"},
Query: nextArgs.QueryStr,
Regex: "\\|MAPREDUCE:WARNINGS\\|",
Timeout: 5,
}
if err := client.applyInteractiveReload(nextArgs, nextSpec); err != nil {
t.Fatalf("applyInteractiveReload() error = %v", err)
}
if client.Args.What != "/tmp/new.log" || client.sessionSpec.Query != nextArgs.QueryStr {
t.Fatalf("client state not committed: args=%#v spec=%#v", client.Args, client.sessionSpec)
}
if len(maker.commits) != 1 {
t.Fatalf("expected one sessionCommitter call, got %d", len(maker.commits))
}
if maker.commits[0].generation != 4 || maker.commits[0].spec.Query != nextArgs.QueryStr {
t.Fatalf("unexpected commit payload: %#v", maker.commits[0])
}
if connA.appliedSpec.Query != nextArgs.QueryStr || connB.appliedSpec.Query != nextArgs.QueryStr {
t.Fatalf("connectors did not receive new session spec: %#v %#v", connA.appliedSpec, connB.appliedSpec)
}
}
type interactiveReloadConnector struct {
appliedSpec sessionspec.Spec
applyErr error
generation uint64
server string
supported bool
}
func (*interactiveReloadConnector) Start(context.Context, context.CancelFunc, chan struct{}, chan struct{}) {
}
func (c *interactiveReloadConnector) Server() string { return c.server }
func (*interactiveReloadConnector) Handler() handlers.Handler { return nil }
func (c *interactiveReloadConnector) SupportsQueryUpdates(time.Duration) bool { return c.supported }
func (c *interactiveReloadConnector) ApplySessionSpec(spec sessionspec.Spec, _ time.Duration) error {
if c.applyErr != nil {
return c.applyErr
}
c.appliedSpec = spec
return nil
}
func (c *interactiveReloadConnector) CommittedSession() (sessionspec.Spec, uint64, bool) {
if c.generation == 0 {
return sessionspec.Spec{}, 0, false
}
return c.appliedSpec, c.generation, true
}
type interactiveReloadMaker struct {
commits []interactiveReloadCommit
}
type interactiveReloadCommit struct {
generation uint64
spec SessionSpec
}
func (*interactiveReloadMaker) makeHandler(string) handlers.Handler { return nil }
func (*interactiveReloadMaker) makeCommands() []string { return nil }
func (m *interactiveReloadMaker) commitSessionSpec(spec SessionSpec, generation uint64) error {
m.commits = append(m.commits, interactiveReloadCommit{
generation: generation,
spec: spec,
})
return nil
}
|
