chore: release v0.26.3

internal/cat/flex_test.go

@@ -0,0 +1,34 @@
+package cat
+
+import "testing"
+
+func TestNeedRecentre(t *testing.T) {
+	pan := panView{centre: 14.100, width: 0.200}
+	// A spot the display is already showing comfortably: leave the window alone,
+	// which is the whole point of the option being off.
+	if needRecentre(pan, 14.110, 0.200, false) {
+		t.Fatal("moved a display that was already on the spot")
+	}
+	// Narrowing for a CW spot 40 kHz away: 25 kHz around the old centre would not
+	// reach it, so the centre must follow.
+	if !needRecentre(pan, 14.060, 0.025, false) {
+		t.Fatal("spot would have been left outside the new window")
+	}
+	// Near the very edge of the new window — visible in the arithmetic, useless
+	// in practice.
+	if !needRecentre(pan, 14.199, 0.200, false) {
+		t.Fatal("spot pinned to the edge counts as outside")
+	}
+	// The operator asked for it.
+	if !needRecentre(pan, 14.110, 0.200, true) {
+		t.Fatal("forced centring ignored")
+	}
+	// No pan status yet: assume the display is elsewhere.
+	if !needRecentre(panView{}, 14.110, 0.200, false) {
+		t.Fatal("unknown centre must re-centre")
+	}
+	// Nothing to centre on.
+	if needRecentre(pan, 0, 0.200, true) {
+		t.Fatal("centred on nothing")
+	}
+}