github.com/fighterlyt/hugo@v0.47.1/common/math/math_test.go (about)

     1  // Copyright 2018 The Hugo Authors. All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  // http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package math
    15  
    16  import (
    17  	"fmt"
    18  	"testing"
    19  
    20  	"github.com/alecthomas/assert"
    21  	"github.com/stretchr/testify/require"
    22  )
    23  
    24  func TestDoArithmetic(t *testing.T) {
    25  	t.Parallel()
    26  
    27  	for i, test := range []struct {
    28  		a      interface{}
    29  		b      interface{}
    30  		op     rune
    31  		expect interface{}
    32  	}{
    33  		{3, 2, '+', int64(5)},
    34  		{3, 2, '-', int64(1)},
    35  		{3, 2, '*', int64(6)},
    36  		{3, 2, '/', int64(1)},
    37  		{3.0, 2, '+', float64(5)},
    38  		{3.0, 2, '-', float64(1)},
    39  		{3.0, 2, '*', float64(6)},
    40  		{3.0, 2, '/', float64(1.5)},
    41  		{3, 2.0, '+', float64(5)},
    42  		{3, 2.0, '-', float64(1)},
    43  		{3, 2.0, '*', float64(6)},
    44  		{3, 2.0, '/', float64(1.5)},
    45  		{3.0, 2.0, '+', float64(5)},
    46  		{3.0, 2.0, '-', float64(1)},
    47  		{3.0, 2.0, '*', float64(6)},
    48  		{3.0, 2.0, '/', float64(1.5)},
    49  		{uint(3), uint(2), '+', uint64(5)},
    50  		{uint(3), uint(2), '-', uint64(1)},
    51  		{uint(3), uint(2), '*', uint64(6)},
    52  		{uint(3), uint(2), '/', uint64(1)},
    53  		{uint(3), 2, '+', uint64(5)},
    54  		{uint(3), 2, '-', uint64(1)},
    55  		{uint(3), 2, '*', uint64(6)},
    56  		{uint(3), 2, '/', uint64(1)},
    57  		{3, uint(2), '+', uint64(5)},
    58  		{3, uint(2), '-', uint64(1)},
    59  		{3, uint(2), '*', uint64(6)},
    60  		{3, uint(2), '/', uint64(1)},
    61  		{uint(3), -2, '+', int64(1)},
    62  		{uint(3), -2, '-', int64(5)},
    63  		{uint(3), -2, '*', int64(-6)},
    64  		{uint(3), -2, '/', int64(-1)},
    65  		{-3, uint(2), '+', int64(-1)},
    66  		{-3, uint(2), '-', int64(-5)},
    67  		{-3, uint(2), '*', int64(-6)},
    68  		{-3, uint(2), '/', int64(-1)},
    69  		{uint(3), 2.0, '+', float64(5)},
    70  		{uint(3), 2.0, '-', float64(1)},
    71  		{uint(3), 2.0, '*', float64(6)},
    72  		{uint(3), 2.0, '/', float64(1.5)},
    73  		{3.0, uint(2), '+', float64(5)},
    74  		{3.0, uint(2), '-', float64(1)},
    75  		{3.0, uint(2), '*', float64(6)},
    76  		{3.0, uint(2), '/', float64(1.5)},
    77  		{0, 0, '+', 0},
    78  		{0, 0, '-', 0},
    79  		{0, 0, '*', 0},
    80  		{"foo", "bar", '+', "foobar"},
    81  		{3, 0, '/', false},
    82  		{3.0, 0, '/', false},
    83  		{3, 0.0, '/', false},
    84  		{uint(3), uint(0), '/', false},
    85  		{3, uint(0), '/', false},
    86  		{-3, uint(0), '/', false},
    87  		{uint(3), 0, '/', false},
    88  		{3.0, uint(0), '/', false},
    89  		{uint(3), 0.0, '/', false},
    90  		{3, "foo", '+', false},
    91  		{3.0, "foo", '+', false},
    92  		{uint(3), "foo", '+', false},
    93  		{"foo", 3, '+', false},
    94  		{"foo", "bar", '-', false},
    95  		{3, 2, '%', false},
    96  	} {
    97  		errMsg := fmt.Sprintf("[%d] %v", i, test)
    98  
    99  		result, err := DoArithmetic(test.a, test.b, test.op)
   100  
   101  		if b, ok := test.expect.(bool); ok && !b {
   102  			require.Error(t, err, errMsg)
   103  			continue
   104  		}
   105  
   106  		require.NoError(t, err, errMsg)
   107  		assert.Equal(t, test.expect, result, errMsg)
   108  	}
   109  }