================
@@ -0,0 +1,42 @@
+//===-- StatuslineTest.cpp
------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Core/Statusline.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_private;
+
+class TestStatusline : public Statusline {
+public:
+ using Statusline::TrimAndPad;
+};
+
+TEST(StatuslineTest, TestTrimAndPad) {
+ // Test basic ASCII.
+ EXPECT_EQ(" ", TestStatusline::TrimAndPad("", 5));
+ EXPECT_EQ("foo ", TestStatusline::TrimAndPad("foo", 5));
+ EXPECT_EQ("fooba", TestStatusline::TrimAndPad("fooba", 5));
+ EXPECT_EQ("fooba", TestStatusline::TrimAndPad("foobar", 5));
+
+ // Simple test that ANSI escape codes don't contribute to the visible width.
+ EXPECT_EQ("\x1B[30m ", TestStatusline::TrimAndPad("\x1B[30m", 5));
+ EXPECT_EQ("\x1B[30mfoo ", TestStatusline::TrimAndPad("\x1B[30mfoo", 5));
+ EXPECT_EQ("\x1B[30mfooba", TestStatusline::TrimAndPad("\x1B[30mfooba", 5));
+ EXPECT_EQ("\x1B[30mfooba", TestStatusline::TrimAndPad("\x1B[30mfoobar", 5));
+
+ // Test that we include as many escape codes as we can.
+ EXPECT_EQ("fooba\x1B[30m", TestStatusline::TrimAndPad("fooba\x1B[30m", 5));
+ EXPECT_EQ("fooba\x1B[30m\x1B[34m",
+ TestStatusline::TrimAndPad("fooba\x1B[30m\x1B[34m", 5));
+ EXPECT_EQ("fooba\x1B[30m\x1B[34m",
+ TestStatusline::TrimAndPad("fooba\x1B[30m\x1B[34mr", 5));
+
+ // Test Unicode.
+ EXPECT_EQ("❤️ ", TestStatusline::TrimAndPad("❤️", 5));
+ EXPECT_EQ(" ❤️", TestStatusline::TrimAndPad(" ❤️", 5));
----------------
labath wrote:
add something like
```
EXPECT_EQ("12❤️45", TestStatusline::TrimAndPad("12❤️45❤️", 5));
```
to make sure that the last ❤️ is trimmed properly.
https://github.com/llvm/llvm-project/pull/121860
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