From 498ac51307412adc29d6d4a6240ae7b98d55621e Mon Sep 17 00:00:00 2001
From: Tommaso Negri <me@tommasongr.com>
Date: Wed, 14 Oct 2026 22:30:19 +0200
Subject: improve performances

---
 Tests/barTests/BlockRefreshTests.swift | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Tests/barTests/BlockRefreshTests.swift

(limited to 'Tests/barTests/BlockRefreshTests.swift')

diff --git a/Tests/barTests/BlockRefreshTests.swift b/Tests/barTests/BlockRefreshTests.swift
new file mode 100644
index 0000000..495bcac
--- /dev/null
+++ b/Tests/barTests/BlockRefreshTests.swift
@@ -0,0 +1,29 @@
+import Combine
+import Testing
+@testable import bar
+
+@Test @MainActor func unchangedOutputDoesNotPublish() {
+	let block = Block(name: "test", placement: .left, command: "")
+	var publications = 0
+	let subscription = block.$cells.dropFirst().sink { _ in publications += 1 }
+	defer { subscription.cancel() }
+
+	block.apply(["same", "same"])
+	block.apply(["same", "same"])
+	#expect(publications == 1)
+	#expect(block.cells.map(\.rawValue) == ["same", "same"])
+
+	// A highlight-only change must still publish, even with identical text.
+	block.apply(["&!1 same", "same"])
+	#expect(publications == 2)
+	#expect(block.cells[0].id == " same:1")
+	block.apply([])
+	block.apply([])
+	#expect(publications == 3)
+	#expect(block.cells.isEmpty)
+}
+
+@Test func runnerPreservesOutputAcrossPoolDrain() {
+	#expect(Runner.run("printf 'first\\n\\nlast\\n'") == ["first", "", "last"])
+	#expect(Runner.run("exit 1") == ["ERROR"])
+}
-- 
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