This revision was automatically updated to reflect the committed changes.
Closed by commit rL340448: Add unit test for StringLexer (authored by
teemperor, committed by ).
Herald added a subscriber: llvm-commits.
Changed prior to commit:
https://reviews.llvm.org/D50298?vs=159193&id=162038#toc
Repository:
rL LLVM
https://reviews.llvm.org/D50298
Files:
lldb/trunk/unittests/Utility/CMakeLists.txt
lldb/trunk/unittests/Utility/StringLexerTest.cpp
Index: lldb/trunk/unittests/Utility/StringLexerTest.cpp
===================================================================
--- lldb/trunk/unittests/Utility/StringLexerTest.cpp
+++ lldb/trunk/unittests/Utility/StringLexerTest.cpp
@@ -0,0 +1,141 @@
+//===-- StringLexerTest.cpp -------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/StringLexer.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_utility;
+
+TEST(StringLexerTest, GetUnlexed) {
+ StringLexer l("foo");
+ EXPECT_EQ("foo", l.GetUnlexed());
+ l.Next();
+ EXPECT_EQ("oo", l.GetUnlexed());
+ l.Next();
+ l.Next();
+ EXPECT_EQ("", l.GetUnlexed());
+}
+
+TEST(StringLexerTest, HasAtLeast) {
+ StringLexer l("foo");
+ EXPECT_FALSE(l.HasAtLeast(5));
+ EXPECT_FALSE(l.HasAtLeast(4));
+ EXPECT_TRUE(l.HasAtLeast(3));
+ EXPECT_TRUE(l.HasAtLeast(2));
+ EXPECT_TRUE(l.HasAtLeast(1));
+
+ l.Next();
+ EXPECT_FALSE(l.HasAtLeast(5));
+ EXPECT_FALSE(l.HasAtLeast(4));
+ EXPECT_FALSE(l.HasAtLeast(3));
+ EXPECT_TRUE(l.HasAtLeast(2));
+ EXPECT_TRUE(l.HasAtLeast(1));
+
+ l.Next();
+ l.Next();
+ EXPECT_FALSE(l.HasAtLeast(5));
+ EXPECT_FALSE(l.HasAtLeast(4));
+ EXPECT_FALSE(l.HasAtLeast(3));
+ EXPECT_FALSE(l.HasAtLeast(2));
+ EXPECT_FALSE(l.HasAtLeast(1));
+}
+
+TEST(StringLexerTest, AdvanceIf) {
+ StringLexer l("foobar");
+
+ EXPECT_FALSE(l.AdvanceIf("oo"));
+ // Skip the "fo" part.
+ EXPECT_TRUE(l.AdvanceIf("fo"));
+ EXPECT_FALSE(l.AdvanceIf("obarz"));
+ // Skip the remaining string.
+ EXPECT_TRUE(l.AdvanceIf("obar"));
+
+ EXPECT_FALSE(l.AdvanceIf("obarz"));
+ EXPECT_FALSE(l.AdvanceIf("foo"));
+ EXPECT_FALSE(l.AdvanceIf("o"));
+ EXPECT_FALSE(l.AdvanceIf(" "));
+}
+
+TEST(StringLexerTest, PutBack) {
+ StringLexer l("foo");
+
+ l.Next();
+ l.PutBack(1);
+ EXPECT_EQ("foo", l.GetUnlexed());
+
+ l.Next();
+ l.Next();
+ l.Next();
+ l.PutBack(2);
+ EXPECT_EQ("oo", l.GetUnlexed());
+
+ l.PutBack(1);
+ EXPECT_EQ("foo", l.GetUnlexed());
+}
+
+TEST(StringLexerTest, Peek) {
+ StringLexer l("foo");
+
+ EXPECT_EQ('f', l.Peek());
+ l.Next();
+ EXPECT_EQ('o', l.Peek());
+ l.Next();
+ EXPECT_EQ('o', l.Peek());
+}
+
+TEST(StringLexerTest, Next) {
+ StringLexer l("foo");
+ EXPECT_EQ('f', l.Next());
+ EXPECT_EQ('o', l.Next());
+ EXPECT_EQ('o', l.Next());
+}
+
+TEST(StringLexerTest, NextIf) {
+ StringLexer l("foo");
+
+ EXPECT_FALSE(l.NextIf('\0'));
+ EXPECT_FALSE(l.NextIf(' '));
+ EXPECT_FALSE(l.NextIf('o'));
+
+ EXPECT_TRUE(l.NextIf('f'));
+
+ EXPECT_FALSE(l.NextIf('\0'));
+ EXPECT_FALSE(l.NextIf(' '));
+ EXPECT_FALSE(l.NextIf('f'));
+
+ EXPECT_TRUE(l.NextIf('o'));
+
+ EXPECT_FALSE(l.NextIf('\0'));
+ EXPECT_FALSE(l.NextIf(' '));
+ EXPECT_FALSE(l.NextIf('f'));
+
+ EXPECT_TRUE(l.NextIf('o'));
+}
+
+TEST(StringLexerTest, NextIfList) {
+ StringLexer l("foo");
+
+ EXPECT_FALSE(l.NextIf({'\0', ' ', 'o'}).first);
+
+ auto r = l.NextIf({'f'});
+ EXPECT_TRUE(r.first);
+ EXPECT_EQ('f', r.second);
+
+ EXPECT_FALSE(l.NextIf({'\0', ' ', 'f'}).first);
+
+ r = l.NextIf({'f', 'o'});
+ EXPECT_TRUE(r.first);
+ EXPECT_EQ('o', r.second);
+
+ EXPECT_FALSE(l.NextIf({'\0', ' ', 'f'}).first);
+
+ r = l.NextIf({'*', 'f', 'o', 'o'});
+ EXPECT_TRUE(r.first);
+ EXPECT_EQ('o', r.second);
+}
Index: lldb/trunk/unittests/Utility/CMakeLists.txt
===================================================================
--- lldb/trunk/unittests/Utility/CMakeLists.txt
+++ lldb/trunk/unittests/Utility/CMakeLists.txt
@@ -19,6 +19,7 @@
StreamTeeTest.cpp
StreamTest.cpp
StringExtractorTest.cpp
+ StringLexerTest.cpp
StringListTest.cpp
StructuredDataTest.cpp
TildeExpressionResolverTest.cpp
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