tui: add sortable processes dashboard table (task 365)

1 files changed, 23 insertions, 0 deletions

diff --git a/internal/tui/dashboard/processes_test.go b/internal/tui/dashboard/processes_test.go
index bfc26fc..7c04497 100644
--- a/internal/tui/dashboard/processes_test.go
+++ b/internal/tui/dashboard/processes_test.go
@@ -28,6 +28,12 @@ func TestRenderProcessesIncludesHeaders(t *testing.T) {
 	if !strings.Contains(out, "100") || !strings.Contains(out, "proc-a") {
 		t.Fatalf("expected process row in output")
 	}
+	if !strings.Contains(out, "s:sort") {
+		t.Fatalf("expected processes sort hint in output")
+	}
+	if !strings.Contains(out, "sort: default") {
+		t.Fatalf("expected processes default sort label in output")
+	}
 }
 
 func TestRenderProcessesShowsSinglePIDNote(t *testing.T) {
@@ -53,3 +59,20 @@ func TestTruncateText(t *testing.T) {
 		t.Fatalf("unexpected truncation result: %q", got)
 	}
 }
+
+func TestSortedProcessTableRowsUsesSelectedSortKey(t *testing.T) {
+	rows := []statsengine.ProcessSnapshot{
+		{PID: 200, Comm: "worker", Syscalls: 9},
+		{PID: 100, Comm: "agent", Syscalls: 3},
+	}
+
+	sorted := sortedProcessTableRows(rows, tableSortState[processSortKey]{active: true, key: processSortKeyComm})
+	if sorted[0].PID != 100 {
+		t.Fatalf("expected comm sort to put PID 100 first, got %d", sorted[0].PID)
+	}
+
+	sorted = sortedProcessTableRows(rows, tableSortState[processSortKey]{active: true, key: processSortKeyPID})
+	if sorted[0].PID != 100 {
+		t.Fatalf("expected pid asc sort to put PID 100 first, got %d", sorted[0].PID)
+	}
+}