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|
package internal
import (
"context"
"errors"
"testing"
"time"
"ior/internal/flags"
"ior/internal/tui"
)
func TestShouldRunTraceMode(t *testing.T) {
base := flags.Flags{}
if shouldRunTraceMode(base) {
t.Fatalf("expected default mode to use TUI")
}
withPlain := base
withPlain.PlainMode = true
if !shouldRunTraceMode(withPlain) {
t.Fatalf("expected plain mode to use trace mode")
}
withFlamegraph := base
withFlamegraph.FlamegraphEnable = true
if !shouldRunTraceMode(withFlamegraph) {
t.Fatalf("expected flamegraph mode to use trace mode")
}
withPprof := base
withPprof.PprofEnable = true
if !shouldRunTraceMode(withPprof) {
t.Fatalf("expected pprof mode to use trace mode")
}
}
func TestDispatchRunUsesTraceModeWhenRequested(t *testing.T) {
origRunTrace := runTraceFn
origRunTUI := runTUIFn
defer func() {
runTraceFn = origRunTrace
runTUIFn = origRunTUI
}()
traceCalled := false
tuiCalled := false
runTraceFn = func() error {
traceCalled = true
return nil
}
runTUIFn = func(tui.TraceStarter) error {
tuiCalled = true
return nil
}
cfg := flags.Flags{PlainMode: true}
if err := dispatchRun(cfg); err != nil {
t.Fatalf("dispatchRun returned error: %v", err)
}
if !traceCalled {
t.Fatalf("expected runTraceFn to be called")
}
if tuiCalled {
t.Fatalf("did not expect runTUIFn to be called")
}
}
func TestDispatchRunUsesTUIStarterWhenNotPlain(t *testing.T) {
origRunTraceWithContext := runTraceWithContextFn
origRunTUI := runTUIFn
defer func() {
runTraceWithContextFn = origRunTraceWithContext
runTUIFn = origRunTUI
}()
traceDone := make(chan struct{}, 1)
runTraceWithContextFn = func(_ context.Context, started chan<- struct{}, configure func(*eventLoop)) error {
if configure != nil {
configure(&eventLoop{})
}
close(started)
traceDone <- struct{}{}
return nil
}
tuiCalled := false
runTUIFn = func(starter tui.TraceStarter) error {
tuiCalled = true
if starter == nil {
t.Fatalf("expected non-nil starter")
}
if err := starter(context.Background()); err != nil {
t.Fatalf("starter returned error: %v", err)
}
return nil
}
cfg := flags.Flags{}
if err := dispatchRun(cfg); err != nil {
t.Fatalf("dispatchRun returned error: %v", err)
}
if !tuiCalled {
t.Fatalf("expected runTUIFn to be called")
}
select {
case <-traceDone:
case <-time.After(200 * time.Millisecond):
t.Fatalf("expected starter to launch runTraceWithContextFn")
}
}
func TestTuiTraceStarterFromRunTracePropagatesError(t *testing.T) {
starter := tuiTraceStarterFromRunTrace(
func(context.Context, chan<- struct{}, func(*eventLoop)) error { return errors.New("startup failed") },
)
err := starter(context.Background())
if err == nil || err.Error() != "startup failed" {
t.Fatalf("expected startup error, got %v", err)
}
}
func TestTuiTraceStarterFromRunTraceRespectsCancel(t *testing.T) {
starter := tuiTraceStarterFromRunTrace(
func(ctx context.Context, _ chan<- struct{}, _ func(*eventLoop)) error {
<-ctx.Done()
return ctx.Err()
},
)
ctx, cancel := context.WithCancel(context.Background())
cancel()
err := starter(ctx)
if !errors.Is(err, context.Canceled) {
t.Fatalf("expected context canceled, got %v", err)
}
}
|
