github.com/uber/kraken@v0.1.4/utils/timeutil/timeutil_test.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, Inc.
     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  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package timeutil
    15  
    16  import (
    17  	"testing"
    18  	"time"
    19  
    20  	"github.com/stretchr/testify/require"
    21  )
    22  
    23  func TestMostRecent(t *testing.T) {
    24  	a := time.Now()
    25  	b := a.Add(time.Second)
    26  	c := b.Add(time.Second)
    27  
    28  	for _, test := range []struct {
    29  		description string
    30  		ts          []time.Time
    31  		expected    time.Time
    32  	}{
    33  		{"empty list", []time.Time{}, time.Time{}},
    34  		{"single item", []time.Time{a}, a},
    35  		{"ascending order", []time.Time{a, b, c}, c},
    36  		{"descending order", []time.Time{c, b, a}, c},
    37  	} {
    38  		t.Run(test.description, func(t *testing.T) {
    39  			actual := MostRecent(test.ts...)
    40  			require.Equal(t, test.expected, actual)
    41  		})
    42  	}
    43  }