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|
package flags
import (
"flag"
"io"
"os"
"strings"
"sync"
"testing"
"time"
)
func parseForTest(t *testing.T, args ...string) (Flags, error) {
t.Helper()
oldCommandLine := flag.CommandLine
oldArgs := os.Args
oldSingleton := singleton
oldOnce := once
oldParseErr := parseErr
oldPID := pidFilter.Load()
oldTID := tidFilter.Load()
oldTUIExport := tuiExportEnable.Load()
fs := flag.NewFlagSet("ior-test", flag.ContinueOnError)
fs.SetOutput(io.Discard)
flag.CommandLine = fs
os.Args = append([]string{"ior"}, args...)
singleton = Flags{TUIExportEnable: true}
once = sync.Once{}
parseErr = nil
pidFilter.Store(-1)
tidFilter.Store(-1)
tuiExportEnable.Store(true)
err := parse()
cfg := singleton
t.Cleanup(func() {
flag.CommandLine = oldCommandLine
os.Args = oldArgs
singleton = oldSingleton
once = oldOnce
parseErr = oldParseErr
pidFilter.Store(oldPID)
tidFilter.Store(oldTID)
tuiExportEnable.Store(oldTUIExport)
})
return cfg, err
}
func TestParseLiveFlagsAndInterval(t *testing.T) {
cfg, err := parseForTest(t, "-live", "-live-interval", "200ms", "-pid", "1234")
if err != nil {
t.Fatalf("parse returned error: %v", err)
}
if !cfg.LiveFlamegraph {
t.Fatalf("expected -live to enable live mode")
}
if cfg.LiveInterval != 200*time.Millisecond {
t.Fatalf("live interval = %v, want %v", cfg.LiveInterval, 200*time.Millisecond)
}
if cfg.PidFilter != 1234 {
t.Fatalf("pid filter = %d, want 1234", cfg.PidFilter)
}
if got := int(pidFilter.Load()); got != 1234 {
t.Fatalf("global pid filter = %d, want 1234", got)
}
}
func TestParseLiveDefaults(t *testing.T) {
cfg, err := parseForTest(t)
if err != nil {
t.Fatalf("parse returned error: %v", err)
}
if cfg.LiveFlamegraph {
t.Fatalf("expected live mode disabled by default")
}
if cfg.LiveInterval != 200*time.Millisecond {
t.Fatalf("default live interval = %v, want %v", cfg.LiveInterval, 200*time.Millisecond)
}
}
func TestParseDefaultCollapsedFieldsOrder(t *testing.T) {
cfg, err := parseForTest(t)
if err != nil {
t.Fatalf("parse returned error: %v", err)
}
want := []string{"comm", "path", "tracepoint"}
if len(cfg.CollapsedFields) != len(want) {
t.Fatalf("default collapsed fields len = %d, want %d", len(cfg.CollapsedFields), len(want))
}
for i := range want {
if cfg.CollapsedFields[i] != want[i] {
t.Fatalf("default collapsed fields[%d] = %q, want %q", i, cfg.CollapsedFields[i], want[i])
}
}
}
func TestParseInvalidCollapsedFieldReturnsError(t *testing.T) {
_, err := parseForTest(t, "-fields", "comm,invalid")
if err == nil {
t.Fatalf("expected parse error for invalid collapsed field")
}
if !strings.Contains(err.Error(), "invalid field for collapse: invalid") {
t.Fatalf("unexpected error: %v", err)
}
}
func TestParseInvalidCountFieldReturnsError(t *testing.T) {
_, err := parseForTest(t, "-count", "invalid")
if err == nil {
t.Fatalf("expected parse error for invalid count field")
}
if !strings.Contains(err.Error(), "invalid count field: invalid") {
t.Fatalf("unexpected error: %v", err)
}
}
func TestParseInvalidTracepointRegexReturnsError(t *testing.T) {
_, err := parseForTest(t, "-tps", "[")
if err == nil {
t.Fatalf("expected parse error for invalid tracepoint regex")
}
if !strings.Contains(err.Error(), "unable to compile regex") {
t.Fatalf("unexpected error: %v", err)
}
}
|
