github.com/april1989/origin-go-tools@v0.0.32/internal/lsp/mod/mod_test.go (about)

     1  // Copyright 2019 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package mod
     6  
     7  import (
     8  	"io/ioutil"
     9  	"os"
    10  	"path/filepath"
    11  	"testing"
    12  
    13  	"github.com/april1989/origin-go-tools/internal/lsp/cache"
    14  	"github.com/april1989/origin-go-tools/internal/lsp/tests"
    15  	"github.com/april1989/origin-go-tools/internal/span"
    16  	"github.com/april1989/origin-go-tools/internal/testenv"
    17  )
    18  
    19  func TestMain(m *testing.M) {
    20  	testenv.ExitIfSmallMachine()
    21  	os.Exit(m.Run())
    22  }
    23  
    24  func TestModfileRemainsUnchanged(t *testing.T) {
    25  	testenv.NeedsGo1Point(t, 14)
    26  
    27  	ctx := tests.Context(t)
    28  	cache := cache.New(ctx, nil)
    29  	session := cache.NewSession(ctx)
    30  	options := tests.DefaultOptions()
    31  	options.TempModfile = true
    32  	options.Env = append(os.Environ(), "GOPACKAGESDRIVER=off", "GOROOT=")
    33  
    34  	// Make sure to copy the test directory to a temporary directory so we do not
    35  	// modify the test code or add go.sum files when we run the tests.
    36  	folder, err := tests.CopyFolderToTempDir(filepath.Join("testdata", "unchanged"))
    37  	if err != nil {
    38  		t.Fatal(err)
    39  	}
    40  	defer os.RemoveAll(folder)
    41  
    42  	before, err := ioutil.ReadFile(filepath.Join(folder, "go.mod"))
    43  	if err != nil {
    44  		t.Fatal(err)
    45  	}
    46  	_, _, release, err := session.NewView(ctx, "diagnostics_test", span.URIFromPath(folder), options)
    47  	release()
    48  	if err != nil {
    49  		t.Fatal(err)
    50  	}
    51  	after, err := ioutil.ReadFile(filepath.Join(folder, "go.mod"))
    52  	if err != nil {
    53  		t.Fatal(err)
    54  	}
    55  	if string(before) != string(after) {
    56  		t.Errorf("the real go.mod file was changed even when tempModfile=true")
    57  	}
    58  }