github.com/whtcorpsinc/milevadb-prod@v0.0.0-20211104133533-f57f4be3b597/soliton/set/string_set_test.go (about)

     1  // Copyright 2020 WHTCORPS INC, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package set
    15  
    16  import (
    17  	"fmt"
    18  
    19  	"github.com/whtcorpsinc/check"
    20  )
    21  
    22  var _ = check.Suite(&stringSetTestSuite{})
    23  
    24  type stringSetTestSuite struct{}
    25  
    26  func (s *stringSetTestSuite) TestStringSet(c *check.C) {
    27  	set := NewStringSet()
    28  	vals := []string{"1", "2", "3", "4", "5", "6", "7", "8", "9", "10"}
    29  	for i := range vals {
    30  		set.Insert(vals[i])
    31  		set.Insert(vals[i])
    32  		set.Insert(vals[i])
    33  		set.Insert(vals[i])
    34  		set.Insert(vals[i])
    35  	}
    36  	c.Assert(set.Count(), check.Equals, len(vals))
    37  
    38  	c.Assert(len(set), check.Equals, len(vals))
    39  	for i := range vals {
    40  		c.Assert(set.Exist(vals[i]), check.IsTrue)
    41  	}
    42  
    43  	c.Assert(set.Exist("11"), check.IsFalse)
    44  
    45  	set = NewStringSet("1", "2", "3", "4", "5", "6")
    46  	for i := 1; i < 7; i++ {
    47  		c.Assert(set.Exist(fmt.Sprintf("%d", i)), check.IsTrue)
    48  	}
    49  	c.Assert(set.Exist("7"), check.IsFalse)
    50  
    51  	s1 := NewStringSet("1", "2", "3")
    52  	s2 := NewStringSet("4", "2", "3")
    53  	s3 := s1.Intersection(s2)
    54  	c.Assert(s3, check.DeepEquals, NewStringSet("2", "3"))
    55  
    56  	s4 := NewStringSet("4", "5", "3")
    57  	c.Assert(s3.Intersection(s4), check.DeepEquals, NewStringSet("3"))
    58  
    59  	s5 := NewStringSet("4", "5")
    60  	c.Assert(s3.Intersection(s5), check.DeepEquals, NewStringSet())
    61  
    62  	s6 := NewStringSet()
    63  	c.Assert(s3.Intersection(s6), check.DeepEquals, NewStringSet())
    64  }