| // Copyright 2021 Google Inc. All rights reserved. |
| // |
| // 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, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package parser |
| |
| import "testing" |
| |
| func Test_numericStringLess(t *testing.T) { |
| type args struct { |
| a string |
| b string |
| } |
| tests := []struct { |
| a, b string |
| }{ |
| {"a", "b"}, |
| {"aa", "ab"}, |
| {"aaa", "aba"}, |
| |
| {"1", "2"}, |
| {"1", "11"}, |
| {"2", "11"}, |
| {"1", "12"}, |
| |
| {"12", "101"}, |
| {"11", "102"}, |
| |
| {"0", "1"}, |
| {"0", "01"}, |
| {"1", "02"}, |
| {"01", "002"}, |
| {"001", "02"}, |
| } |
| |
| oneTest := func(a, b string, want bool) { |
| t.Helper() |
| if got := numericStringLess(a, b); got != want { |
| t.Errorf("want numericStringLess(%v, %v) = %v, got %v", a, b, want, got) |
| } |
| } |
| |
| for _, tt := range tests { |
| t.Run(tt.a+"<"+tt.b, func(t *testing.T) { |
| // a should be less than b |
| oneTest(tt.a, tt.b, true) |
| // b should not be less than a |
| oneTest(tt.b, tt.a, false) |
| // a should not be less than a |
| oneTest(tt.a, tt.a, false) |
| // b should not be less than b |
| oneTest(tt.b, tt.b, false) |
| |
| // The same should be true both strings are prefixed with an "a" |
| oneTest("a"+tt.a, "a"+tt.b, true) |
| oneTest("a"+tt.b, "a"+tt.a, false) |
| oneTest("a"+tt.a, "a"+tt.a, false) |
| oneTest("a"+tt.b, "a"+tt.b, false) |
| |
| // The same should be true both strings are suffixed with an "a" |
| oneTest(tt.a+"a", tt.b+"a", true) |
| oneTest(tt.b+"a", tt.a+"a", false) |
| oneTest(tt.a+"a", tt.a+"a", false) |
| oneTest(tt.b+"a", tt.b+"a", false) |
| |
| // The same should be true both strings are suffixed with a "1" |
| oneTest(tt.a+"1", tt.b+"1", true) |
| oneTest(tt.b+"1", tt.a+"1", false) |
| oneTest(tt.a+"1", tt.a+"1", false) |
| oneTest(tt.b+"1", tt.b+"1", false) |
| |
| // The same should be true both strings are prefixed with a "0" |
| oneTest("0"+tt.a, "0"+tt.b, true) |
| oneTest("0"+tt.b, "0"+tt.a, false) |
| oneTest("0"+tt.a, "0"+tt.a, false) |
| oneTest("0"+tt.b, "0"+tt.b, false) |
| |
| // The same should be true both strings are suffixed with a "0" |
| oneTest(tt.a+"0", tt.b+"0", true) |
| oneTest(tt.b+"0", tt.a+"0", false) |
| oneTest(tt.a+"0", tt.a+"0", false) |
| oneTest(tt.b+"0", tt.b+"0", false) |
| |
| }) |
| } |
| } |