github.com/bazelbuild/rules_webtesting@v0.2.0/go/errors/errors_test.go (about)

     1  /// Copyright 2016 Google 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  
    15  package errors
    16  
    17  import (
    18  	"errors"
    19  	"strings"
    20  	"testing"
    21  )
    22  
    23  func TestNewFromString(t *testing.T) {
    24  	fromString := New("fromString", "error")
    25  	if Component(fromString) != "fromString" {
    26  		t.Errorf(`expected Component(fromString) == "fromString", got %s`, Component(fromString))
    27  	}
    28  	if !strings.Contains(fromString.Error(), "error") {
    29  		t.Errorf(`expected fromString.Error() contains "error", got %s`, fromString.Error())
    30  	}
    31  
    32  	err := errors.New("error")
    33  	fromError := New("fromError", err)
    34  	if Component(fromError) != "fromError" {
    35  		t.Errorf(`expected Component(fromError) == "fromError", got %s`, Component(fromError))
    36  	}
    37  	if !strings.Contains(fromError.Error(), "error") {
    38  		t.Errorf(`got %v, expected fromError.Error() contains "error"`, fromError.Error())
    39  	}
    40  
    41  	if sameComp := New("fromString", fromString); sameComp != fromString {
    42  		t.Errorf("expected sameComp == %+v, got %+v", fromString, sameComp)
    43  	}
    44  
    45  	if newComp := New("newComp", fromString); newComp != fromString {
    46  		t.Errorf("expected newComp == %+v, got %+v", fromString, newComp)
    47  	}
    48  }