github.com/insionng/yougam@v0.0.0-20170714101924-2bc18d833463/libraries/pingcap/tidb/util/segmentmap/segmentmap_test.go (about)

     1  // Copyright 2015 PingCAP, 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 segmentmap
    15  
    16  import (
    17  	. "github.com/insionng/yougam/libraries/pingcap/check"
    18  	"github.com/insionng/yougam/libraries/pingcap/tidb/util/testleak"
    19  )
    20  
    21  var _ = Suite(&testSegmentMapSuite{})
    22  
    23  type testSegmentMapSuite struct {
    24  }
    25  
    26  func (s *testSegmentMapSuite) TestSegment(c *C) {
    27  	defer testleak.AfterTest(c)()
    28  	segs := int64(2)
    29  	m, err := NewSegmentMap(segs)
    30  	c.Assert(err, IsNil)
    31  	c.Assert(m.SegmentCount(), Equals, segs)
    32  	k := []byte("k")
    33  	v := []byte("v")
    34  	val, exist := m.Get(k)
    35  	c.Assert(exist, IsFalse)
    36  
    37  	exist = m.Set(k, v, false)
    38  	c.Assert(exist, IsFalse)
    39  
    40  	val, exist = m.Get(k)
    41  	c.Assert(v, DeepEquals, val.([]byte))
    42  	c.Assert(exist, IsTrue)
    43  
    44  	m0, err := m.GetSegment(0)
    45  	c.Assert(err, IsNil)
    46  
    47  	m1, err := m.GetSegment(1)
    48  	c.Assert(err, IsNil)
    49  
    50  	c.Assert(len(m0)+len(m1), Equals, 1)
    51  
    52  	_, err = m.GetSegment(3)
    53  	c.Assert(err, NotNil)
    54  }