istio.io/istio@v0.0.0-20240520182934-d79c90f27776/operator/pkg/util/errs_test.go (about)

     1  // Copyright Istio Authors
     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 util
    16  
    17  import (
    18  	"fmt"
    19  	"testing"
    20  )
    21  
    22  var (
    23  	testErrs = Errors{fmt.Errorf("err1"), fmt.Errorf("err2")}
    24  	wantStr  = "err1, err2"
    25  )
    26  
    27  func TestError(t *testing.T) {
    28  	if got, want := testErrs.Error(), wantStr; got != want {
    29  		t.Errorf("got: %s, want: %s", got, want)
    30  	}
    31  }
    32  
    33  func TestString(t *testing.T) {
    34  	if got, want := testErrs.String(), wantStr; got != want {
    35  		t.Errorf("got: %s, want: %s", got, want)
    36  	}
    37  }
    38  
    39  func TestToString(t *testing.T) {
    40  	if got, want := ToString(testErrs, defaultSeparator), wantStr; got != want {
    41  		t.Errorf("got: %s, want: %s", got, want)
    42  	}
    43  }
    44  
    45  func TestNewErrs(t *testing.T) {
    46  	errs := NewErrs(nil)
    47  	if errs != nil {
    48  		t.Errorf("got: %s, want: nil", errs)
    49  	}
    50  
    51  	errs = NewErrs(fmt.Errorf("err1"))
    52  	if got, want := errs.String(), "err1"; got != want {
    53  		t.Errorf("got: %s, want: %s", got, want)
    54  	}
    55  }
    56  
    57  func TestAppendErr(t *testing.T) {
    58  	var errs Errors
    59  	if got, want := errs.String(), ""; got != want {
    60  		t.Errorf("got: %s, want: %s", got, want)
    61  	}
    62  
    63  	errs = AppendErr(errs, nil)
    64  	if got, want := errs.String(), ""; got != want {
    65  		t.Errorf("got: %s, want: %s", got, want)
    66  	}
    67  
    68  	errs = AppendErr(errs, fmt.Errorf("err1"))
    69  	if got, want := errs.String(), "err1"; got != want {
    70  		t.Errorf("got: %s, want: %s", got, want)
    71  	}
    72  
    73  	errs = AppendErr(errs, nil)
    74  	errs = AppendErr(errs, fmt.Errorf("err2"))
    75  	if got, want := errs.String(), "err1, err2"; got != want {
    76  		t.Errorf("got: %s, want: %s", got, want)
    77  	}
    78  }
    79  
    80  func TestAppendErrs(t *testing.T) {
    81  	var errs Errors
    82  
    83  	errs = AppendErrs(errs, []error{nil})
    84  	if got, want := errs.String(), ""; got != want {
    85  		t.Errorf("got: %s, want: %s", got, want)
    86  	}
    87  
    88  	errs = AppendErrs(errs, testErrs)
    89  	errs = AppendErrs(errs, []error{nil})
    90  	if got, want := errs.String(), wantStr; got != want {
    91  		t.Errorf("got: %s, want: %s", got, want)
    92  	}
    93  }
    94  
    95  func TestAppendErrsInFunction(t *testing.T) {
    96  	myAppendErrFunc := func() (errs Errors) {
    97  		errs = AppendErr(errs, fmt.Errorf("err1"))
    98  		errs = AppendErr(errs, fmt.Errorf("err2"))
    99  		return
   100  	}
   101  	if got, want := myAppendErrFunc().String(), wantStr; got != want {
   102  		t.Errorf("got: %s, want: %s", got, want)
   103  	}
   104  
   105  	myAppendErrsFunc := func() (errs Errors) {
   106  		errs = AppendErrs(errs, testErrs)
   107  		return
   108  	}
   109  	if got, want := myAppendErrsFunc().String(), wantStr; got != want {
   110  		t.Errorf("got: %s, want: %s", got, want)
   111  	}
   112  
   113  	myErrorSliceFunc := func() (errs []error) {
   114  		errs = AppendErrs(errs, testErrs)
   115  		return
   116  	}
   117  
   118  	if got, want := Errors(myErrorSliceFunc()).String(), wantStr; got != want {
   119  		t.Errorf("got: %s, want: %s", got, want)
   120  	}
   121  }