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Support starts_with (str, prefix) function (#2813)

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Support starts_with function
This commit is contained in:
Lishi
2020-01-21 14:09:08 +08:00
committed by HangyuanLiu
parent 7099fcf2d3
commit 89c7234c1c
7 changed files with 142 additions and 0 deletions
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33
be/test/exprs/string_functions_test.cpp
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@ -190,6 +190,39 @@ TEST_F(StringFunctionsTest, ends_with) {
ASSERT_EQ(nullRet, StringFunctions::ends_with(context, StringVal::null(), StringVal::null()));
}
TEST_F(StringFunctionsTest, starts_with) {
doris_udf::FunctionContext* context = new doris_udf::FunctionContext();
doris_udf::BooleanVal falseRet = doris_udf::BooleanVal(false);
doris_udf::BooleanVal trueRet = doris_udf::BooleanVal(true);
doris_udf::BooleanVal nullRet = doris_udf::BooleanVal::null();
ASSERT_EQ(trueRet, StringFunctions::starts_with(context, StringVal(""), StringVal("")));
ASSERT_EQ(trueRet, StringFunctions::starts_with(context, StringVal(" "), StringVal(" ")));
ASSERT_EQ(trueRet, StringFunctions::starts_with(context, StringVal("hello"), StringVal("")));
ASSERT_EQ(falseRet, StringFunctions::starts_with(context, StringVal(""), StringVal("hello")));
ASSERT_EQ(trueRet, StringFunctions::starts_with(context, StringVal("hello"), StringVal("hello")));
ASSERT_EQ(falseRet, StringFunctions::starts_with(context, StringVal("hello"), StringVal(" ")));
ASSERT_EQ(falseRet, StringFunctions::starts_with(context, StringVal(" "), StringVal("world")));
ASSERT_EQ(trueRet, StringFunctions::starts_with(context, StringVal("hello world"), StringVal("hello")));
ASSERT_EQ(falseRet, StringFunctions::starts_with(context, StringVal("hello world"), StringVal("world")));
ASSERT_EQ(trueRet, StringFunctions::starts_with(context, StringVal("hello world"), StringVal("hello world")));
ASSERT_EQ(nullRet, StringFunctions::starts_with(context, StringVal("hello world"), StringVal::null()));
ASSERT_EQ(nullRet, StringFunctions::starts_with(context, StringVal::null(), StringVal("hello world")));
ASSERT_EQ(nullRet, StringFunctions::starts_with(context, StringVal::null(), StringVal::null()));
}
}
int main(int argc, char** argv) {