github.com/google/osv-scalibr@v0.4.1/clients/clienttest/mock_resolution_client.go (about)

     1  // Copyright 2025 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 clienttest
    16  
    17  import (
    18  	"os"
    19  	"strings"
    20  	"testing"
    21  
    22  	"deps.dev/util/resolve"
    23  	"deps.dev/util/resolve/schema"
    24  	"gopkg.in/yaml.v3"
    25  )
    26  
    27  // ResolutionUniverse defines a mock resolution universe.
    28  type ResolutionUniverse struct {
    29  	System string `yaml:"system"`
    30  	Schema string `yaml:"schema"`
    31  }
    32  
    33  // NewMockResolutionClient creates a new mock resolution client from the given universe YAML.
    34  func NewMockResolutionClient(t *testing.T, universeYAML string) resolve.Client {
    35  	t.Helper()
    36  	f, err := os.Open(universeYAML)
    37  	if err != nil {
    38  		t.Fatalf("failed opening mock universe: %v", err)
    39  	}
    40  	defer f.Close()
    41  	dec := yaml.NewDecoder(f)
    42  
    43  	var universe ResolutionUniverse
    44  	if err := dec.Decode(&universe); err != nil {
    45  		t.Fatalf("failed decoding mock universe: %v", err)
    46  	}
    47  
    48  	var sys resolve.System
    49  	switch strings.ToLower(universe.System) {
    50  	case "npm":
    51  		sys = resolve.NPM
    52  	case "maven":
    53  		sys = resolve.Maven
    54  	case "pypi":
    55  		sys = resolve.PyPI
    56  	default:
    57  		t.Fatalf("unknown ecosystem in universe: %s", universe.System)
    58  	}
    59  
    60  	// schema needs a strict tab indentation, which is awkward to do within the YAML.
    61  	// Replace double space from yaml with single tab
    62  	universe.Schema = strings.ReplaceAll(universe.Schema, "  ", "\t")
    63  	sch, err := schema.New(universe.Schema, sys)
    64  	if err != nil {
    65  		t.Fatalf("failed parsing schema: %v", err)
    66  	}
    67  
    68  	return sch.NewClient()
    69  }