woodpecker/shared/utils/paginate_test.go

92 lines
2 KiB
Go

// Copyright 2023 Woodpecker Authors
//
// 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 utils
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestPaginate(t *testing.T) {
// Generic mock generator that can handle all cases
createMock := func(pages [][]int) func(page int) []int {
return func(page int) []int {
if page <= 0 {
page = 0
} else {
page--
}
if page >= len(pages) {
return []int{}
}
return pages[page]
}
}
tests := []struct {
name string
limit int
pages [][]int
expected []int
apiCalls int
}{
{
name: "multiple pages",
limit: -1,
pages: [][]int{{11, 12, 13}, {21, 22, 23}, {31, 32}},
expected: []int{11, 12, 13, 21, 22, 23, 31, 32},
apiCalls: 3,
},
{
name: "zero limit",
limit: 0,
pages: [][]int{{1, 2, 3}, {1, 2, 3}, {1, 2, 3}},
expected: []int{1, 2, 3, 1, 2, 3, 1, 2, 3},
apiCalls: 4,
},
{
name: "empty result",
limit: 5,
pages: [][]int{{}},
expected: []int{},
apiCalls: 1,
},
{
name: "limit less than batch",
limit: 2,
pages: [][]int{{1, 2, 3, 4, 5}},
expected: []int{1, 2},
apiCalls: 1,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
apiExec := 0
mock := createMock(tt.pages)
result, _ := Paginate(func(page int) ([]int, error) {
apiExec++
return mock(page), nil
}, tt.limit)
assert.EqualValues(t, tt.apiCalls, apiExec)
assert.EqualValues(t, tt.expected, result)
})
}
}