cmp.go

Documentation: github.com/GoogleCloudPlatform/k8s-config-connector/pkg/test/cmp

     1  // Copyright 2022 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 testcmp
    16  
    17  import (
    18  	"strings"
    19  	"testing"
    20  )
    21  
    22  func UnorderedLineByLineComparisonIgnoreBlankLines(t *testing.T, expected, actual string) {
    23  	expectedLines := make(map[string]int)
    24  	for _, s := range strings.Split(expected, "\n") {
    25  		if s == "" {
    26  			continue
    27  		}
    28  		expectedLines[s] += 1
    29  	}
    30  	actualLines := strings.Split(actual, "\n")
    31  	for linenum, line := range actualLines {
    32  		if line == "" {
    33  			continue
    34  		}
    35  		v, ok := expectedLines[line]
    36  		if !ok {
    37  			t.Fatalf("actual value didn't match expected value: line %d, %q, not in expected.", linenum, line)
    38  		}
    39  		if v == 1 {
    40  			delete(expectedLines, line)
    41  		} else {
    42  			expectedLines[line] = v - 1
    43  		}
    44  	}
    45  	if len(expectedLines) != 0 {
    46  		t.Fatalf("actual value didn't match expected value: line '%v' not in actual value", expectedLines)
    47  	}
    48  }
    49
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