V7

core/cmd/dragontcp-client/chunk_test.go

@@ -0,0 +1,36 @@
+package main
+
+import "testing"
+
+func TestAdaptiveSizerRecoversFromMinimum(t *testing.T) {
+	opts := chunkClientOptions{
+		startSize:      64,
+		minSize:        32,
+		maxSize:        1024,
+		adaptive:       true,
+		adaptSuccesses: 2,
+	}
+	s := newAdaptiveSizer("test", opts)
+	_, next := s.Failure(64)
+	if next != 32 {
+		t.Fatalf("failure should reduce 64 -> 32, got %d", next)
+	}
+
+	// When good=32 and bad=64 are adjacent at the controller's probing
+	// granularity, it deliberately waits 8x longer before testing upward.
+	for i := 0; i < 16; i++ {
+		s.Success(32)
+	}
+	if got := s.Current(); got <= 32 {
+		t.Fatalf("adaptive controller remained stuck at minimum: %d", got)
+	}
+}
+
+func TestWireTokenAllowsEmptyToken(t *testing.T) {
+	if got := wireToken(""); got != "-" {
+		t.Fatalf("empty token wire representation = %q, want '-'", got)
+	}
+	if got := wireToken("secret"); got != "secret" {
+		t.Fatalf("non-empty token changed: %q", got)
+	}
+}