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|
package dashboard
import (
"strings"
"testing"
"ior/internal/statsengine"
)
func TestRenderSyscallsIncludesHeaders(t *testing.T) {
snap := statsengine.NewSnapshot(
nil, nil, nil,
[]statsengine.SyscallSnapshot{
{Name: "write", Count: 5, RatePerSec: 1.2, Bytes: 1024, Errors: 1},
{Name: "read", Count: 10, RatePerSec: 2.4, Bytes: 2048, Errors: 0},
},
nil, nil,
statsengine.HistogramSnapshot{},
statsengine.HistogramSnapshot{},
)
out := renderSyscalls(&snap, 120, 30)
for _, token := range []string{"Syscall", "Count", "Rate/s", "p95", "p99", "Bytes", "Errors"} {
if !strings.Contains(out, token) {
t.Fatalf("expected token %q in syscall table view", token)
}
}
if !strings.Contains(out, "read") {
t.Fatalf("expected syscall row in output")
}
}
func TestFormatDurationNs(t *testing.T) {
if got := formatDurationNs(50); got != "50ns" {
t.Fatalf("unexpected ns formatting: %q", got)
}
if got := formatDurationNs(1500); !strings.Contains(got, "µs") {
t.Fatalf("expected µs formatting, got %q", got)
}
if got := formatDurationNs(2_500_000); !strings.Contains(got, "ms") {
t.Fatalf("expected ms formatting, got %q", got)
}
}
func TestClampOffset(t *testing.T) {
if got := clampOffset(-5, 10); got != 0 {
t.Fatalf("expected 0 for negative offset, got %d", got)
}
if got := clampOffset(99, 4); got != 3 {
t.Fatalf("expected max index clamp, got %d", got)
}
}
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