cuelabs.dev/go/oci/ociregistry@v0.0.0-20240906074133-82eb438dd565/ociunify/iter_test.go (about)

     1  // Copyright 2023 CUE Labs AG
     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  
    15  package ociunify
    16  
    17  import (
    18  	"cmp"
    19  	"testing"
    20  
    21  	"cuelabs.dev/go/oci/ociregistry"
    22  	"github.com/go-quicktest/qt"
    23  )
    24  
    25  var mergeIterTests = []struct {
    26  	testName string
    27  	it0, it1 ociregistry.Seq[int]
    28  	want     []int
    29  	wantErr  error
    30  }{{
    31  	testName: "IdenticalContents",
    32  	it0:      ociregistry.SliceSeq([]int{1, 2, 3}),
    33  	it1:      ociregistry.SliceSeq([]int{1, 2, 3}),
    34  	want:     []int{1, 2, 3},
    35  }, {
    36  	testName: "DifferentContents",
    37  	it0:      ociregistry.SliceSeq([]int{0, 1, 2, 3}),
    38  	it1:      ociregistry.SliceSeq([]int{1, 2, 3, 5}),
    39  	want:     []int{0, 1, 2, 3, 5},
    40  }, {
    41  	testName: "NoItems",
    42  	it0:      ociregistry.SliceSeq[int](nil),
    43  	it1:      ociregistry.SliceSeq[int](nil),
    44  	want:     []int{},
    45  }}
    46  
    47  func TestMergeIter(t *testing.T) {
    48  	for _, test := range mergeIterTests {
    49  		t.Run(test.testName, func(t *testing.T) {
    50  			it := mergeIter(test.it0, test.it1, cmp.Compare)
    51  			xs, err := ociregistry.All(it)
    52  			qt.Assert(t, qt.DeepEquals(xs, test.want))
    53  			qt.Assert(t, qt.Equals(err, test.wantErr))
    54  		})
    55  	}
    56  }