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test: cover empty-needle Replace and empty-delim Split (#2009)

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MarkLee131
2026-04-25 17:26:04 +08:00
parent 514b47cad3
commit c94df21130
1 changed files with 23 additions and 0 deletions
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test/StringTest.cpp
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@@ -128,6 +128,18 @@ TEST(StringTest, Replace) {
EXPECT_EQ(CString("(a()a)").Replace_n("a", "b"), "(b()b)");
EXPECT_EQ(CString("(a()a)").Replace_n("a", "b", "(", ")"), "(a()b)");
EXPECT_EQ(CString("(a()a)").Replace_n("a", "b", "(", ")", true), "a(b)");
// An empty needle must return the input unchanged with a 0 count
// instead of looping forever appending sWith (#2009).
CString sStr = "abc";
EXPECT_EQ(CString::Replace(sStr, "", "X"), 0u);
EXPECT_EQ(sStr, "abc");
sStr = "";
EXPECT_EQ(CString::Replace(sStr, "", "X"), 0u);
EXPECT_EQ(sStr, "");
EXPECT_EQ(CString("abc").Replace_n("", "X"), "abc");
}
TEST(StringTest, Misc) {
@@ -172,6 +184,17 @@ TEST(StringTest, Split) {
CS("a=x&c=d&a=b").URLSplit(mresult);
EXPECT_EQ(mexpected, mresult) << "URLSplit";
// Empty delimiter must not spin in the prefix-skip loop (#2009).
// With nothing to split on, the whole input is returned as a single
// element (or zero elements if the input itself is empty).
VCString vempty;
EXPECT_EQ(CS("abc").Split("", vempty, false), 1u);
EXPECT_EQ(vempty, VCString({"abc"}));
EXPECT_EQ(CS("abc").Split("", vempty, true), 1u);
EXPECT_EQ(vempty, VCString({"abc"}));
EXPECT_EQ(CS("").Split("", vempty, false), 0u);
EXPECT_TRUE(vempty.empty());
}
TEST(StringTest, NamedFormat) {