125 lines
3.0 KiB
Go
125 lines
3.0 KiB
Go
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package builtin
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import (
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"errors"
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. "github.com/pingcap/check"
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)
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func (s *testBuiltinSuite) TestLength(c *C) {
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v, err := builtinLength([]interface{}{nil}, nil)
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c.Assert(err, IsNil)
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c.Assert(v, IsNil)
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v, err = builtinLength([]interface{}{"abc"}, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, int64(3))
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_, err = builtinLength([]interface{}{1}, nil)
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c.Assert(err, NotNil)
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}
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func (s *testBuiltinSuite) TestConcat(c *C) {
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args := []interface{}{nil}
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v, err := builtinConcat(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, IsNil)
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args = []interface{}{"a", "b", "c"}
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v, err = builtinConcat(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "abc")
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args = []interface{}{"a", "b", nil, "c"}
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v, err = builtinConcat(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, IsNil)
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args = []interface{}{errors.New("must error")}
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_, err = builtinConcat(args, nil)
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c.Assert(err, NotNil)
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}
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func (s *testBuiltinSuite) TestConcatWS(c *C) {
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args := []interface{}{nil}
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v, err := builtinConcatWS(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, IsNil)
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args = []interface{}{"|", "a", nil, "b", "c"}
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v, err = builtinConcatWS(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "a|b|c")
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args = []interface{}{errors.New("must error")}
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_, err = builtinConcatWS(args, nil)
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c.Assert(err, NotNil)
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}
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func (s *testBuiltinSuite) TestLeft(c *C) {
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args := []interface{}{"abcdefg", int64(2)}
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v, err := builtinLeft(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "ab")
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args = []interface{}{"abcdefg", int64(-1)}
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v, err = builtinLeft(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "")
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args = []interface{}{"abcdefg", int64(100)}
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v, err = builtinLeft(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "abcdefg")
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args = []interface{}{1, int64(1)}
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_, err = builtinLeft(args, nil)
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c.Assert(err, NotNil)
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args = []interface{}{"abcdefg", "xxx"}
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_, err = builtinLeft(args, nil)
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c.Assert(err, NotNil)
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}
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func (s *testBuiltinSuite) TestRepeat(c *C) {
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args := []interface{}{"a", int64(2)}
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v, err := builtinRepeat(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "aa")
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args = []interface{}{"a", uint64(2)}
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v, err = builtinRepeat(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "aa")
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args = []interface{}{"a", int64(-1)}
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v, err = builtinRepeat(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "")
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args = []interface{}{"a", int64(0)}
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v, err = builtinRepeat(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "")
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args = []interface{}{"a", uint64(0)}
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v, err = builtinRepeat(args, nil)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, "")
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}
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