github.com/munnerz/test-infra@v0.0.0-20190108210205-ce3d181dc989/gopherage/pkg/cov/util_test.go (about)

     1  /*
     2  Copyright 2018 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package cov_test
    18  
    19  import (
    20  	"bytes"
    21  	"golang.org/x/tools/cover"
    22  	"k8s.io/test-infra/gopherage/pkg/cov"
    23  	"testing"
    24  )
    25  
    26  func TestDumpProfileOneFile(t *testing.T) {
    27  	a := []*cover.Profile{
    28  		{
    29  			FileName: "foo.go",
    30  			Mode:     "count",
    31  			Blocks: []cover.ProfileBlock{
    32  				{StartLine: 1, StartCol: 3, EndLine: 20, EndCol: 1, NumStmt: 10, Count: 3},
    33  				{StartLine: 22, StartCol: 5, EndLine: 28, EndCol: 2, NumStmt: 5, Count: 2},
    34  			},
    35  		},
    36  	}
    37  
    38  	expected := `mode: count
    39  foo.go:1.3,20.1 10 3
    40  foo.go:22.5,28.2 5 2
    41  `
    42  
    43  	var buffer bytes.Buffer
    44  	if err := cov.DumpProfile(a, &buffer); err != nil {
    45  		t.Fatalf("DumpProfile failed: %v", err)
    46  	}
    47  
    48  	if buffer.String() != expected {
    49  		t.Errorf("bad result.\n\nexpected:\n%s\nactual:\n%s\n", expected, buffer.String())
    50  	}
    51  }
    52  
    53  func TestDumpProfileMultipleFiles(t *testing.T) {
    54  	a := []*cover.Profile{
    55  		{
    56  			FileName: "bar.go",
    57  			Mode:     "atomic",
    58  			Blocks: []cover.ProfileBlock{
    59  				{StartLine: 5, StartCol: 1, EndLine: 16, EndCol: 7, NumStmt: 7, Count: 0},
    60  			},
    61  		},
    62  		{
    63  			FileName: "foo.go",
    64  			Mode:     "atomic",
    65  			Blocks: []cover.ProfileBlock{
    66  				{StartLine: 1, StartCol: 3, EndLine: 20, EndCol: 1, NumStmt: 10, Count: 3},
    67  				{StartLine: 22, StartCol: 5, EndLine: 28, EndCol: 2, NumStmt: 5, Count: 2},
    68  			},
    69  		},
    70  	}
    71  
    72  	expected := `mode: atomic
    73  bar.go:5.1,16.7 7 0
    74  foo.go:1.3,20.1 10 3
    75  foo.go:22.5,28.2 5 2
    76  `
    77  	var buffer bytes.Buffer
    78  	if err := cov.DumpProfile(a, &buffer); err != nil {
    79  		t.Fatalf("DumpProfile failed: %v", err)
    80  	}
    81  
    82  	if buffer.String() != expected {
    83  		t.Errorf("bad result.\n\nexpected:\n%s\nactual:\n%s\n", expected, buffer.String())
    84  	}
    85  }
    86  
    87  func TestDumpProfileNoFiles(t *testing.T) {
    88  	var buffer bytes.Buffer
    89  	if err := cov.DumpProfile([]*cover.Profile{}, &buffer); err == nil {
    90  		t.Error("expected dumping no files to fail")
    91  	}
    92  }