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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.sql.catalyst.util
import org.apache.spark.SparkFunSuite
import org.apache.spark.sql.catalyst.util.StringUtils._
class StringUtilsSuite extends SparkFunSuite {
test("escapeLikeRegex") {
assert(escapeLikeRegex("abdef") === "(?s)\\Qa\\E\\Qb\\E\\Qd\\E\\Qe\\E\\Qf\\E")
assert(escapeLikeRegex("a\\__b") === "(?s)\\Qa\\E_.\\Qb\\E")
assert(escapeLikeRegex("a_%b") === "(?s)\\Qa\\E..*\\Qb\\E")
assert(escapeLikeRegex("a%\\%b") === "(?s)\\Qa\\E.*%\\Qb\\E")
assert(escapeLikeRegex("a%") === "(?s)\\Qa\\E.*")
assert(escapeLikeRegex("**") === "(?s)\\Q*\\E\\Q*\\E")
assert(escapeLikeRegex("a_b") === "(?s)\\Qa\\E.\\Qb\\E")
}
test("filter pattern") {
val names = Seq("a1", "a2", "b2", "c3")
assert(filterPattern(names, " * ") === Seq("a1", "a2", "b2", "c3"))
assert(filterPattern(names, "*a*") === Seq("a1", "a2"))
assert(filterPattern(names, " *a* ") === Seq("a1", "a2"))
assert(filterPattern(names, " a* ") === Seq("a1", "a2"))
assert(filterPattern(names, " a.* ") === Seq("a1", "a2"))
assert(filterPattern(names, " B.*|a* ") === Seq("a1", "a2", "b2"))
assert(filterPattern(names, " a. ") === Seq("a1", "a2"))
assert(filterPattern(names, " d* ") === Nil)
}
}
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