first commit

operation/actions/logs_test.go

@@ -0,0 +1,22 @@
+package actions
+
+import "testing"
+
+func TestTailByLines(t *testing.T) {
+	in := []byte("a\nb\nc\nd\n")
+	got := string(tailByLines(in, 2))
+	if got != "c\nd\n" {
+		t.Fatalf("tailByLines(...,2) = %q", got)
+	}
+}
+
+func TestLimitBytesKeepsTail(t *testing.T) {
+	in := []byte("0123456789")
+	out, truncated := limitBytes(in, 4)
+	if !truncated {
+		t.Fatalf("expected truncated=true")
+	}
+	if string(out) != "6789" {
+		t.Fatalf("limitBytes tail = %q, want %q", string(out), "6789")
+	}
+}