feat(landscape): computation graph, params and per-pixel kernels

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

internal/landscape/params_test.go

@@ -0,0 +1,58 @@
+package landscape
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestDefaultParamsValidate(t *testing.T) {
+	if err := DefaultParams().Validate(); err != nil {
+		t.Fatalf("DefaultParams().Validate() = %v, want nil", err)
+	}
+}
+
+func TestWithDefaultsFillsZeroFields(t *testing.T) {
+	got := Params{}.WithDefaults()
+	want := DefaultParams()
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("Params{}.WithDefaults() = %+v, want %+v", got, want)
+	}
+}
+
+func TestValidate_TiePriorityDuplicateInvalid(t *testing.T) {
+	p := DefaultParams()
+	p.TiePriority = []int{1, 1, 2, 3, 4}
+	if err := p.Validate(); err == nil {
+		t.Fatal("expected error for tie_priority with duplicate values")
+	}
+}
+
+func TestValidate_WindowSizeOutOfRangeInvalid(t *testing.T) {
+	p := DefaultParams()
+	p.WindowSize = 100
+	if err := p.Validate(); err == nil {
+		t.Fatal("expected error for window_size below 256")
+	}
+}
+
+func TestForNode_NonFuncZoningNodeIsZero(t *testing.T) {
+	p := DefaultParams()
+	got := p.ForNode("00")
+	if !reflect.DeepEqual(got, Params{}) {
+		t.Fatalf("ForNode(00) = %+v, want zero value", got)
+	}
+}
+
+func TestForNode_FuncZoningHasNoWindowSize(t *testing.T) {
+	p := DefaultParams()
+	got := p.ForNode("30")
+	if got.WindowSize != 0 {
+		t.Fatalf("ForNode(30).WindowSize = %d, want 0", got.WindowSize)
+	}
+	if !reflect.DeepEqual(got.TiePriority, p.TiePriority) {
+		t.Fatalf("ForNode(30).TiePriority = %v, want %v", got.TiePriority, p.TiePriority)
+	}
+	if got.V1MinSE12 != p.V1MinSE12 || got.V1MinSE3 != p.V1MinSE3 || got.V2MinSE3 != p.V2MinSE3 || got.V2MinSE4 != p.V2MinSE4 {
+		t.Fatalf("ForNode(30) thresholds = %+v, want matching %+v", got, p)
+	}
+}