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