github.com/google/yamlfmt@v0.12.2-0.20240514121411-7f77800e2681/internal/collections/errors_test.go (about)

     1  // Copyright 2024 Google LLC
     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 collections_test
    16  
    17  import (
    18  	"errors"
    19  	"strings"
    20  	"testing"
    21  
    22  	"github.com/google/yamlfmt/internal/collections"
    23  )
    24  
    25  func TestErrorsCombine(t *testing.T) {
    26  	errs := collections.Errors{
    27  		errors.New("a"),
    28  		nil,
    29  		errors.New("c"),
    30  	}
    31  	err := errs.Combine()
    32  	if err == nil {
    33  		t.Fatal("expected combined err not to be nil")
    34  	}
    35  	for _, errEl := range errs {
    36  		if errEl == nil {
    37  			continue
    38  		}
    39  		if !strings.Contains(err.Error(), errEl.Error()) {
    40  			t.Fatalf("expected combined err to contain %v, got: %v", errEl, err)
    41  		}
    42  	}
    43  }
    44  
    45  func TestErrorsCombineEmpty(t *testing.T) {
    46  	errs := collections.Errors{}
    47  	err := errs.Combine()
    48  	if err != nil {
    49  		t.Fatalf("expected combined err to be nil, got: %v", err)
    50  	}
    51  }
    52  
    53  func TestErrorsCombineNilElements(t *testing.T) {
    54  	errs := collections.Errors{nil, nil, nil}
    55  	err := errs.Combine()
    56  	if err != nil {
    57  		t.Fatalf("expected combined err to be nil, got: %v", err)
    58  	}
    59  }