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// Copyright 2019 PingCAP, Inc.
//
// Licensed 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package parser
import (
"testing"
. "github.com/pingcap/check"
)
var _ = Suite(&testParserSuite{})
type testParserSuite struct {
}
func TestT(t *testing.T) {
TestingT(t)
}
func (s *testParserSuite) TestSpace(c *C) {
okTable := []struct {
Times int
Input string
Expected string
}{
{0, " 1", "1"},
{0, "1", "1"},
{1, " 1", "1"},
{2, " 1", "1"},
}
for _, test := range okTable {
rest, err := Space(test.Input, test.Times)
c.Assert(rest, Equals, test.Expected)
c.Assert(err, IsNil)
}
errTable := []struct {
Times int
Input string
}{
{1, "1"},
{2, " 1"},
}
for _, test := range errTable {
rest, err := Space(test.Input, test.Times)
c.Assert(rest, Equals, test.Input)
c.Assert(err, NotNil)
}
}
func (s *testParserSuite) TestDigit(c *C) {
okTable := []struct {
Times int
Input string
ExpectedDigits string
ExpectedRest string
}{
{0, "123abc", "123", "abc"},
{1, "123abc", "123", "abc"},
{2, "123 @)@)", "123", " @)@)"},
{3, "456 121", "456", " 121"},
}
for _, test := range okTable {
digits, rest, err := Digit(test.Input, test.Times)
c.Assert(digits, Equals, test.ExpectedDigits)
c.Assert(rest, Equals, test.ExpectedRest)
c.Assert(err, IsNil)
}
errTable := []struct {
Times int
Input string
}{
{1, "int"},
{2, "1int"},
{3, "12 int"},
}
for _, test := range errTable {
digits, rest, err := Digit(test.Input, test.Times)
c.Assert(digits, Equals, "")
c.Assert(rest, Equals, test.Input)
c.Assert(err, NotNil)
}
}
func (s *testParserSuite) TestNumber(c *C) {
okTable := []struct {
Input string
ExpectedNum int
ExpectedRest string
}{
{"123abc", 123, "abc"},
{"123abc", 123, "abc"},
{"123 @)@)", 123, " @)@)"},
{"456 121", 456, " 121"},
}
for _, test := range okTable {
digits, rest, err := Number(test.Input)
c.Assert(digits, Equals, test.ExpectedNum)
c.Assert(rest, Equals, test.ExpectedRest)
c.Assert(err, IsNil)
}
errTable := []struct {
Input string
}{
{"int"},
{"abcint"},
{"@)@)int"},
}
for _, test := range errTable {
digits, rest, err := Number(test.Input)
c.Assert(digits, Equals, 0)
c.Assert(rest, Equals, test.Input)
c.Assert(err, NotNil)
}
}
func (s *testParserSuite) TestCharAndAnyChar(c *C) {
okTable := []struct {
Char byte
Input string
Expected string
}{
{'i', "int", "nt"},
{'1', "1int", "int"},
{'1', "12 int", "2 int"},
}
for _, test := range okTable {
rest, err := Char(test.Input, test.Char)
c.Assert(rest, Equals, test.Expected)
c.Assert(err, IsNil)
rest, err = AnyChar(test.Input)
c.Assert(rest, Equals, test.Expected)
c.Assert(err, IsNil)
}
errTable := []struct {
Char byte
Input string
}{
{'i', "xint"},
{'1', "x1int"},
{'1', "x12 int"},
}
for _, test := range errTable {
rest, err := Char(test.Input, test.Char)
c.Assert(rest, Equals, test.Input)
c.Assert(err, NotNil)
}
}