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|
package dashboard
import (
"strings"
"testing"
"ior/internal/statsengine"
)
func TestRenderProcessesIncludesHeaders(t *testing.T) {
snap := statsengine.NewSnapshot(
nil, nil, nil,
nil, nil,
[]statsengine.ProcessSnapshot{
{PID: 200, Comm: "proc-b", Syscalls: 10, RatePerSec: 2.3, Bytes: 2048, AvgLatencyNs: 1500},
{PID: 100, Comm: "proc-a", Syscalls: 20, RatePerSec: 4.6, Bytes: 4096, AvgLatencyNs: 2500},
},
statsengine.HistogramSnapshot{},
statsengine.HistogramSnapshot{},
)
out := renderProcesses(&snap, 120, 30)
for _, token := range []string{"PID", "Comm", "Syscalls", "Total Bytes", "Avg Latency"} {
if !strings.Contains(out, token) {
t.Fatalf("expected header token %q", token)
}
}
if !strings.Contains(out, "100") || !strings.Contains(out, "proc-a") {
t.Fatalf("expected process row in output")
}
}
func TestRenderProcessesShowsSinglePIDNote(t *testing.T) {
snap := statsengine.NewSnapshot(
nil, nil, nil,
nil, nil,
[]statsengine.ProcessSnapshot{
{PID: 77, Comm: "proc", Syscalls: 1},
},
statsengine.HistogramSnapshot{},
statsengine.HistogramSnapshot{},
)
out := renderProcessesWithOffset(&snap, 100, 20, 0, 77)
if !strings.Contains(out, "most useful with All PIDs") {
t.Fatalf("expected single-pid guidance note")
}
}
func TestTruncateText(t *testing.T) {
got := truncateText("very-long-process-name", 10)
if got != "very-lo..." {
t.Fatalf("unexpected truncation result: %q", got)
}
}
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