github.com/anchore/syft@v1.38.2/syft/pkg/cataloger/internal/binutils/branching_matcher_test.go (about)

     1  package binutils
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/stretchr/testify/require"
     7  
     8  	"github.com/anchore/syft/syft/file"
     9  	"github.com/anchore/syft/syft/internal/unionreader"
    10  )
    11  
    12  func Test_BranchingMatcher(t *testing.T) {
    13  	matchingTest := FileContentsVersionMatcher("", `my-verison:(?<version>\d+\.\d+)`)
    14  	notMatchingTest := MatchPath("**/not-version*")
    15  
    16  	tests := []struct {
    17  		name                 string
    18  		matcher              EvidenceMatcher
    19  		expectedPackageNames []string
    20  	}{
    21  		{
    22  			name: "not matching",
    23  			matcher: BranchingEvidenceMatcher(
    24  				Classifier{
    25  					EvidenceMatcher: MatchAll(
    26  						notMatchingTest,
    27  						matchingTest,
    28  					),
    29  					Package: "a-pkg",
    30  				},
    31  			),
    32  			expectedPackageNames: nil,
    33  		},
    34  		{
    35  			name: "both match",
    36  			matcher: BranchingEvidenceMatcher(
    37  				Classifier{
    38  					EvidenceMatcher: matchingTest,
    39  					Package:         "a-pkg",
    40  				},
    41  				Classifier{
    42  					EvidenceMatcher: matchingTest,
    43  					Package:         "b-pkg",
    44  				},
    45  			),
    46  			expectedPackageNames: []string{"a-pkg"},
    47  		},
    48  		{
    49  			name: "first-does-not-match",
    50  			matcher: BranchingEvidenceMatcher(
    51  				Classifier{
    52  					EvidenceMatcher: MatchAll(
    53  						notMatchingTest,
    54  						matchingTest,
    55  					),
    56  					Package: "b-pkg",
    57  				},
    58  				Classifier{
    59  					EvidenceMatcher: matchingTest,
    60  					Package:         "c-pkg",
    61  				},
    62  			),
    63  			expectedPackageNames: []string{"c-pkg"},
    64  		},
    65  	}
    66  
    67  	for _, test := range tests {
    68  		t.Run(test.name, func(t *testing.T) {
    69  			resolver := file.NewMockResolverForPaths("test-fixtures/version.txt", "test-fixtures/version-parts.txt")
    70  			locs, err := resolver.FilesByGlob("**/version.txt")
    71  			require.NoError(t, err)
    72  			require.Len(t, locs, 1)
    73  			loc := locs[0]
    74  			rdr, err := resolver.FileContentsByLocation(loc)
    75  			require.NoError(t, err)
    76  			urdr, err := unionreader.GetUnionReader(rdr)
    77  			require.NoError(t, err)
    78  			pkgs, err := test.matcher(Classifier{
    79  				Package: "a-pkg",
    80  			}, MatcherContext{
    81  				Resolver: resolver,
    82  				Location: loc,
    83  				GetReader: func(resolver MatcherContext) (unionreader.UnionReader, error) {
    84  					return urdr, nil
    85  				},
    86  			})
    87  			require.NoError(t, err)
    88  			var got []string
    89  			for i := range pkgs {
    90  				got = append(got, pkgs[i].Name)
    91  			}
    92  			require.EqualValues(t, test.expectedPackageNames, got)
    93  		})
    94  	}
    95  }