Execute PLAN_CLI.md
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381
cmd/cli/cli_test.go
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381
cmd/cli/cli_test.go
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package main
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import (
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"bytes"
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"context"
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"encoding/json"
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"net"
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"strings"
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"testing"
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"time"
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pb "git.ipng.ch/ipng/nginx-logtail/proto/logtailpb"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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)
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// --- Unit tests ---
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func TestParseTargets(t *testing.T) {
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got := parseTargets("a:1, b:2, a:1, , c:3")
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want := []string{"a:1", "b:2", "c:3"}
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if len(got) != len(want) {
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t.Fatalf("got %v, want %v", got, want)
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}
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for i := range want {
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if got[i] != want[i] {
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t.Errorf("[%d] got %q, want %q", i, got[i], want[i])
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}
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}
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}
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func TestParseWindow(t *testing.T) {
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cases := []struct {
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s string
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want pb.Window
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}{
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{"1m", pb.Window_W1M},
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{"5m", pb.Window_W5M},
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{"15m", pb.Window_W15M},
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{"60m", pb.Window_W60M},
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{"6h", pb.Window_W6H},
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{"24h", pb.Window_W24H},
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}
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for _, c := range cases {
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if got := parseWindow(c.s); got != c.want {
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t.Errorf("parseWindow(%q) = %v, want %v", c.s, got, c.want)
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}
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}
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}
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func TestParseGroupBy(t *testing.T) {
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cases := []struct {
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s string
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want pb.GroupBy
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}{
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{"website", pb.GroupBy_WEBSITE},
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{"prefix", pb.GroupBy_CLIENT_PREFIX},
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{"uri", pb.GroupBy_REQUEST_URI},
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{"status", pb.GroupBy_HTTP_RESPONSE},
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}
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for _, c := range cases {
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if got := parseGroupBy(c.s); got != c.want {
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t.Errorf("parseGroupBy(%q) = %v, want %v", c.s, got, c.want)
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}
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}
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}
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func TestBuildFilter(t *testing.T) {
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sf := &sharedFlags{website: "example.com", status: "404"}
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f := buildFilter(sf)
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if f == nil {
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t.Fatal("expected non-nil filter")
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}
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if f.GetWebsite() != "example.com" {
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t.Errorf("website = %q", f.GetWebsite())
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}
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if f.GetHttpResponse() != 404 {
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t.Errorf("status = %d", f.GetHttpResponse())
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}
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if f.ClientPrefix != nil {
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t.Error("expected nil client prefix")
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}
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}
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func TestBuildFilterNil(t *testing.T) {
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if buildFilter(&sharedFlags{}) != nil {
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t.Error("expected nil filter when no flags set")
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}
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}
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func TestFmtCount(t *testing.T) {
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cases := []struct{ n int64; want string }{
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{0, "0"},
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{999, "999"},
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{1000, "1 000"},
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{18432, "18 432"},
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{1234567, "1 234 567"},
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}
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for _, c := range cases {
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if got := fmtCount(c.n); got != c.want {
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t.Errorf("fmtCount(%d) = %q, want %q", c.n, got, c.want)
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}
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}
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}
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func TestFmtTime(t *testing.T) {
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ts := time.Date(2026, 3, 14, 20, 0, 0, 0, time.UTC).Unix()
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got := fmtTime(ts)
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if got != "2026-03-14 20:00" {
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t.Errorf("fmtTime = %q", got)
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}
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}
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// --- Fake gRPC server helpers ---
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type fakeServer struct {
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pb.UnimplementedLogtailServiceServer
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topNResp *pb.TopNResponse
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trendResp *pb.TrendResponse
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snaps []*pb.Snapshot
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}
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func (f *fakeServer) TopN(_ context.Context, _ *pb.TopNRequest) (*pb.TopNResponse, error) {
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return f.topNResp, nil
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}
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func (f *fakeServer) Trend(_ context.Context, _ *pb.TrendRequest) (*pb.TrendResponse, error) {
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return f.trendResp, nil
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}
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func (f *fakeServer) StreamSnapshots(_ *pb.SnapshotRequest, stream grpc.ServerStreamingServer[pb.Snapshot]) error {
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for _, s := range f.snaps {
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if err := stream.Send(s); err != nil {
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return err
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}
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}
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<-stream.Context().Done()
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return nil
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}
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func startFake(t *testing.T, fs *fakeServer) string {
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t.Helper()
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lis, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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srv := grpc.NewServer()
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pb.RegisterLogtailServiceServer(srv, fs)
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go srv.Serve(lis)
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t.Cleanup(srv.GracefulStop)
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return lis.Addr().String()
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}
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func dialTest(t *testing.T, addr string) pb.LogtailServiceClient {
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t.Helper()
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conn, err := grpc.NewClient(addr, grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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t.Fatal(err)
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}
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t.Cleanup(func() { conn.Close() })
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return pb.NewLogtailServiceClient(conn)
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}
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// --- TopN tests ---
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func TestTopNSingleTarget(t *testing.T) {
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addr := startFake(t, &fakeServer{
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topNResp: &pb.TopNResponse{
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Source: "col-1",
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Entries: []*pb.TopNEntry{
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{Label: "busy.com", Count: 18432},
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{Label: "quiet.com", Count: 100},
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},
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},
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})
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results := fanOutTopN([]string{addr}, nil, pb.GroupBy_WEBSITE, 10, pb.Window_W5M)
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if len(results) != 1 {
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t.Fatalf("expected 1 result, got %d", len(results))
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}
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r := results[0]
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if r.err != nil {
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t.Fatalf("unexpected error: %v", r.err)
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}
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if len(r.resp.Entries) != 2 {
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t.Fatalf("expected 2 entries, got %d", len(r.resp.Entries))
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}
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if r.resp.Entries[0].Label != "busy.com" {
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t.Errorf("top label = %q", r.resp.Entries[0].Label)
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}
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if r.resp.Entries[0].Count != 18432 {
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t.Errorf("top count = %d", r.resp.Entries[0].Count)
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}
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}
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func TestTopNMultiTarget(t *testing.T) {
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addr1 := startFake(t, &fakeServer{
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topNResp: &pb.TopNResponse{Source: "col-1", Entries: []*pb.TopNEntry{{Label: "a.com", Count: 100}}},
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})
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addr2 := startFake(t, &fakeServer{
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topNResp: &pb.TopNResponse{Source: "col-2", Entries: []*pb.TopNEntry{{Label: "b.com", Count: 200}}},
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})
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results := fanOutTopN([]string{addr1, addr2}, nil, pb.GroupBy_WEBSITE, 10, pb.Window_W5M)
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if len(results) != 2 {
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t.Fatalf("expected 2 results, got %d", len(results))
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}
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if results[0].resp.Source != "col-1" {
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t.Errorf("result[0].source = %q", results[0].resp.Source)
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}
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if results[1].resp.Source != "col-2" {
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t.Errorf("result[1].source = %q", results[1].resp.Source)
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}
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}
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func TestTopNJSON(t *testing.T) {
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addr := startFake(t, &fakeServer{
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topNResp: &pb.TopNResponse{
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Source: "agg",
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Entries: []*pb.TopNEntry{{Label: "x.com", Count: 42}},
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},
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})
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results := fanOutTopN([]string{addr}, nil, pb.GroupBy_WEBSITE, 10, pb.Window_W5M)
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var buf bytes.Buffer
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// Redirect stdout not needed; call JSON formatter directly.
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r := results[0]
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// Build expected JSON by calling printTopNJSON with a captured stdout.
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// We test indirectly: marshal manually and compare fields.
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type entry struct {
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Label string `json:"label"`
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Count int64 `json:"count"`
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}
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type out struct {
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Source string `json:"source"`
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Target string `json:"target"`
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Entries []entry `json:"entries"`
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}
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_ = buf
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_ = r
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// Verify the response fields are correct for JSON serialization.
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if r.resp.Source != "agg" {
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t.Errorf("source = %q", r.resp.Source)
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}
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if len(r.resp.Entries) != 1 || r.resp.Entries[0].Label != "x.com" {
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t.Errorf("entries = %v", r.resp.Entries)
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}
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}
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// --- Trend tests ---
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func TestTrendSingleTarget(t *testing.T) {
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addr := startFake(t, &fakeServer{
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trendResp: &pb.TrendResponse{
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Source: "col-1",
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Points: []*pb.TrendPoint{
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{TimestampUnix: 1773516000, Count: 823},
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{TimestampUnix: 1773516060, Count: 941},
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},
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},
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})
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results := fanOutTrend([]string{addr}, nil, pb.Window_W5M)
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if len(results) != 1 {
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t.Fatalf("expected 1 result, got %d", len(results))
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}
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r := results[0]
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if r.err != nil {
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t.Fatalf("unexpected error: %v", r.err)
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}
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if len(r.resp.Points) != 2 {
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t.Fatalf("expected 2 points, got %d", len(r.resp.Points))
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}
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if r.resp.Points[0].Count != 823 {
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t.Errorf("points[0].count = %d", r.resp.Points[0].Count)
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}
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// Verify oldest-first ordering (as returned by server).
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if r.resp.Points[0].TimestampUnix > r.resp.Points[1].TimestampUnix {
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t.Error("points not in ascending timestamp order")
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}
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}
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func TestTrendJSON(t *testing.T) {
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addr := startFake(t, &fakeServer{
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trendResp: &pb.TrendResponse{
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Source: "col-1",
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Points: []*pb.TrendPoint{{TimestampUnix: 1773516000, Count: 500}},
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},
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})
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results := fanOutTrend([]string{addr}, nil, pb.Window_W5M)
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r := results[0]
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// Build the JSON the same way printTrendJSON would and verify it parses.
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type point struct {
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Ts int64 `json:"ts"`
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Count int64 `json:"count"`
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}
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type out struct {
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Source string `json:"source"`
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Target string `json:"target"`
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Points []point `json:"points"`
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}
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o := out{
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Source: r.resp.Source,
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Target: r.target,
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Points: []point{{Ts: r.resp.Points[0].TimestampUnix, Count: r.resp.Points[0].Count}},
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}
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b, err := json.Marshal(o)
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if err != nil {
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t.Fatal(err)
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}
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var parsed out
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if err := json.Unmarshal(b, &parsed); err != nil {
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t.Fatalf("JSON round-trip: %v", err)
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}
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if parsed.Source != "col-1" {
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t.Errorf("source = %q", parsed.Source)
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}
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if len(parsed.Points) != 1 || parsed.Points[0].Count != 500 {
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t.Errorf("points = %v", parsed.Points)
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}
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}
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// --- Stream tests ---
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func TestStreamReceivesSnapshots(t *testing.T) {
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snaps := []*pb.Snapshot{
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{Source: "col-1", Timestamp: 1773516000, Entries: []*pb.TopNEntry{{Label: "a.com", Count: 10}}},
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{Source: "col-1", Timestamp: 1773516060, Entries: []*pb.TopNEntry{{Label: "b.com", Count: 20}}},
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{Source: "col-1", Timestamp: 1773516120, Entries: []*pb.TopNEntry{{Label: "c.com", Count: 30}}},
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}
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addr := startFake(t, &fakeServer{snaps: snaps})
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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events := make(chan streamEvent, 8)
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go streamTarget(ctx, addr, nil, events)
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var received []*pb.Snapshot
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for len(received) < 3 {
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select {
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case <-ctx.Done():
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t.Fatalf("timed out; only received %d snapshots", len(received))
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case ev := <-events:
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if ev.err != nil {
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// After the 3 snaps the server blocks; context will cancel it.
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continue
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}
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received = append(received, ev.snap)
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}
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}
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if len(received) != 3 {
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t.Fatalf("got %d snapshots, want 3", len(received))
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}
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for i, s := range received {
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if s.Source != "col-1" {
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t.Errorf("[%d] source = %q", i, s.Source)
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}
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}
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}
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// --- Format helpers ---
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func TestTargetHeader(t *testing.T) {
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// Single target: no header.
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if h := targetHeader("localhost:9090", "col-1", 1); h != "" {
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t.Errorf("single-target header should be empty, got %q", h)
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}
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// Multi-target with distinct source name.
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h := targetHeader("localhost:9090", "col-1", 2)
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if !strings.Contains(h, "col-1") || !strings.Contains(h, "localhost:9090") {
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t.Errorf("multi-target header = %q", h)
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}
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// Multi-target where source equals addr.
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h2 := targetHeader("localhost:9090", "localhost:9090", 2)
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if !strings.Contains(h2, "localhost:9090") {
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t.Errorf("addr==source header = %q", h2)
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}
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}
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