forked from OSchip/llvm-project
140 lines
4.0 KiB
C++
140 lines
4.0 KiB
C++
//===-- ConstStringTest.cpp -----------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/ConstString.h"
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#include "llvm/Support/FormatVariadic.h"
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#include "gtest/gtest.h"
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using namespace lldb_private;
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TEST(ConstStringTest, format_provider) {
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EXPECT_EQ("foo", llvm::formatv("{0}", ConstString("foo")).str());
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}
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TEST(ConstStringTest, MangledCounterpart) {
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ConstString uvw("uvw");
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ConstString counterpart;
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EXPECT_FALSE(uvw.GetMangledCounterpart(counterpart));
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EXPECT_EQ("", counterpart.GetStringRef());
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ConstString xyz;
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xyz.SetStringWithMangledCounterpart("xyz", uvw);
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EXPECT_EQ("xyz", xyz.GetStringRef());
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EXPECT_TRUE(xyz.GetMangledCounterpart(counterpart));
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EXPECT_EQ("uvw", counterpart.GetStringRef());
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EXPECT_TRUE(uvw.GetMangledCounterpart(counterpart));
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EXPECT_EQ("xyz", counterpart.GetStringRef());
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}
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TEST(ConstStringTest, UpdateMangledCounterpart) {
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{ // Add counterpart
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ConstString some1;
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some1.SetStringWithMangledCounterpart("some", ConstString(""));
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}
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{ // Overwrite empty string
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ConstString some2;
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some2.SetStringWithMangledCounterpart("some", ConstString("one"));
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}
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{ // Overwrite with identical value
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ConstString some2;
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some2.SetStringWithMangledCounterpart("some", ConstString("one"));
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}
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{ // Check counterpart is set
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ConstString counterpart;
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EXPECT_TRUE(ConstString("some").GetMangledCounterpart(counterpart));
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EXPECT_EQ("one", counterpart.GetStringRef());
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}
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}
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TEST(ConstStringTest, FromMidOfBufferStringRef) {
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// StringRef's into bigger buffer: no null termination
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const char *buffer = "abcdefghi";
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llvm::StringRef foo_ref(buffer, 3);
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llvm::StringRef bar_ref(buffer + 3, 3);
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ConstString foo(foo_ref);
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ConstString bar;
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bar.SetStringWithMangledCounterpart(bar_ref, foo);
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EXPECT_EQ("def", bar.GetStringRef());
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ConstString counterpart;
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EXPECT_TRUE(bar.GetMangledCounterpart(counterpart));
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EXPECT_EQ("abc", counterpart.GetStringRef());
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EXPECT_TRUE(foo.GetMangledCounterpart(counterpart));
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EXPECT_EQ("def", counterpart.GetStringRef());
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}
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TEST(ConstStringTest, NullAndEmptyStates) {
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ConstString foo("foo");
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EXPECT_FALSE(!foo);
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EXPECT_FALSE(foo.IsEmpty());
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EXPECT_FALSE(foo.IsNull());
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ConstString empty("");
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EXPECT_TRUE(!empty);
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EXPECT_TRUE(empty.IsEmpty());
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EXPECT_FALSE(empty.IsNull());
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ConstString null;
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EXPECT_TRUE(!null);
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EXPECT_TRUE(null.IsEmpty());
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EXPECT_TRUE(null.IsNull());
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}
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TEST(ConstStringTest, CompareConstString) {
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ConstString foo("foo");
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ConstString foo2("foo");
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ConstString bar("bar");
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EXPECT_TRUE(foo == foo2);
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EXPECT_TRUE(foo2 == foo);
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EXPECT_TRUE(foo == ConstString("foo"));
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EXPECT_FALSE(foo == bar);
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EXPECT_FALSE(foo2 == bar);
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EXPECT_FALSE(foo == ConstString("bar"));
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EXPECT_FALSE(foo == ConstString("different"));
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EXPECT_FALSE(foo == ConstString(""));
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EXPECT_FALSE(foo == ConstString());
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ConstString empty("");
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EXPECT_FALSE(empty == ConstString("bar"));
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EXPECT_FALSE(empty == ConstString());
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EXPECT_TRUE(empty == ConstString(""));
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ConstString null;
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EXPECT_FALSE(null == ConstString("bar"));
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EXPECT_TRUE(null == ConstString());
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EXPECT_FALSE(null == ConstString(""));
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}
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TEST(ConstStringTest, CompareStringRef) {
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ConstString foo("foo");
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EXPECT_TRUE(foo == "foo");
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EXPECT_TRUE(foo != "");
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EXPECT_FALSE(foo == static_cast<const char *>(nullptr));
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EXPECT_TRUE(foo != "bar");
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ConstString empty("");
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EXPECT_FALSE(empty == "foo");
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EXPECT_FALSE(empty != "");
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EXPECT_FALSE(empty == static_cast<const char *>(nullptr));
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EXPECT_TRUE(empty != "bar");
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ConstString null;
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EXPECT_FALSE(null == "foo");
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EXPECT_TRUE(null != "");
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EXPECT_TRUE(null == static_cast<const char *>(nullptr));
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EXPECT_TRUE(null != "bar");
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}
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