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GeezerVison is showing github.com — sqlparser/ast_test.go at master · salyh/sqlparser

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ast_test.go

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// Copyright 2014, Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sqlparser
import "testing"
func TestLimits(t *testing.T) {
var l *Limit
o, r, err := l.Limits()
if o != nil || r != nil || err != nil {
t.Errorf("got %v, %v, %v, want nils", o, r, err)
}
l = &Limit{Offset: NumVal([]byte("aa"))}
_, _, err = l.Limits()
wantErr := "strconv.ParseInt: parsing \"aa\": invalid syntax"
if err == nil || err.Error() != wantErr {
t.Errorf("got %v, want %s", err, wantErr)
}
l = &Limit{Offset: NumVal([]byte("2"))}
_, _, err = l.Limits()
wantErr = "unexpected node for rowcount: <nil>"
if err == nil || err.Error() != wantErr {
t.Errorf("got %v, want %s", err, wantErr)
}
l = &Limit{Offset: StrVal([]byte("2"))}
_, _, err = l.Limits()
wantErr = "unexpected node for offset: [50]"
if err == nil || err.Error() != wantErr {
t.Errorf("got %v, want %s", err, wantErr)
}
l = &Limit{Offset: NumVal([]byte("2")), Rowcount: NumVal([]byte("aa"))}
_, _, err = l.Limits()
wantErr = "strconv.ParseInt: parsing \"aa\": invalid syntax"
if err == nil || err.Error() != wantErr {
t.Errorf("got %v, want %s", err, wantErr)
}
l = &Limit{Offset: NumVal([]byte("2")), Rowcount: NumVal([]byte("3"))}
o, r, err = l.Limits()
if o.(int64) != 2 || r.(int64) != 3 || err != nil {
t.Errorf("got %v %v %v, want 2, 3, nil", o, r, err)
}
l = &Limit{Offset: ValArg([]byte(":a")), Rowcount: NumVal([]byte("3"))}
o, r, err = l.Limits()
if o.(string) != ":a" || r.(int64) != 3 || err != nil {
t.Errorf("got %v %v %v, want :a, 3, nil", o, r, err)
}
l = &Limit{Offset: nil, Rowcount: NumVal([]byte("3"))}
o, r, err = l.Limits()
if o != nil || r.(int64) != 3 || err != nil {
t.Errorf("got %v %v %v, want nil, 3, nil", o, r, err)
}
l = &Limit{Offset: nil, Rowcount: ValArg([]byte(":a"))}
o, r, err = l.Limits()
if o != nil || r.(string) != ":a" || err != nil {
t.Errorf("got %v %v %v, want nil, :a, nil", o, r, err)
}
l = &Limit{Offset: NumVal([]byte("-2")), Rowcount: NumVal([]byte("0"))}
_, _, err = l.Limits()
wantErr = "negative offset: -2"
if err == nil || err.Error() != wantErr {
t.Errorf("got %v, want %s", err, wantErr)
}
l = &Limit{Offset: NumVal([]byte("2")), Rowcount: NumVal([]byte("-2"))}
_, _, err = l.Limits()
wantErr = "negative limit: -2"
if err == nil || err.Error() != wantErr {
t.Errorf("got %v, want %s", err, wantErr)
}
}
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