convert posix path back to windows (#4285)

Signed-off-by: Joseph Shapiro <joeyashapiro@gmail.com>

syft/internal/fileresolver/metadata_test.go

@@ -0,0 +1,50 @@
+package fileresolver
+
+import (
+	"os"
+	"testing"
+
+	"github.com/anchore/stereoscope/pkg/file"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestFileMetadataFromPath(t *testing.T) {
+
+	tests := []struct {
+		path             string
+		expectedType     file.Type
+		expectedMIMEType string
+	}{
+		{
+			path:             "test-fixtures/symlinks-simple/readme",
+			expectedType:     file.TypeRegular,
+			expectedMIMEType: "text/plain",
+		},
+		{
+			path:             "test-fixtures/symlinks-simple/link_to_new_readme",
+			expectedType:     file.TypeSymLink,
+			expectedMIMEType: "",
+		},
+		{
+			path:             "test-fixtures/symlinks-simple/link_to_link_to_new_readme",
+			expectedType:     file.TypeSymLink,
+			expectedMIMEType: "",
+		},
+		{
+			path:             "test-fixtures/symlinks-simple",
+			expectedType:     file.TypeDirectory,
+			expectedMIMEType: "",
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.path, func(t *testing.T) {
+			info, err := os.Lstat(test.path)
+			require.NoError(t, err)
+
+			actual := NewMetadataFromPath(test.path, info)
+			assert.Equal(t, test.expectedMIMEType, actual.MIMEType, "unexpected MIME type for %s", test.path)
+			assert.Equal(t, test.expectedType, actual.Type, "unexpected type for %s", test.path)
+		})
+	}
+}