--- /dev/null
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+package cache
+
+import (
+ "context"
+ "io/ioutil"
+ "os"
+ "path/filepath"
+ "testing"
+
+ "golang.org/x/tools/internal/lsp/fake"
+ "golang.org/x/tools/internal/lsp/source"
+ "golang.org/x/tools/internal/span"
+)
+
+func TestCaseInsensitiveFilesystem(t *testing.T) {
+ base, err := ioutil.TempDir("", t.Name())
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ inner := filepath.Join(base, "a/B/c/DEFgh")
+ if err := os.MkdirAll(inner, 0777); err != nil {
+ t.Fatal(err)
+ }
+ file := filepath.Join(inner, "f.go")
+ if err := ioutil.WriteFile(file, []byte("hi"), 0777); err != nil {
+ t.Fatal(err)
+ }
+ if _, err := os.Stat(filepath.Join(inner, "F.go")); err != nil {
+ t.Skip("filesystem is case-sensitive")
+ }
+
+ tests := []struct {
+ path string
+ err bool
+ }{
+ {file, false},
+ {filepath.Join(inner, "F.go"), true},
+ {filepath.Join(base, "a/b/c/defgh/f.go"), true},
+ }
+ for _, tt := range tests {
+ err := checkPathCase(tt.path)
+ if err != nil != tt.err {
+ t.Errorf("checkPathCase(%q) = %v, wanted error: %v", tt.path, err, tt.err)
+ }
+ }
+}
+
+func TestFindWorkspaceRoot(t *testing.T) {
+ workspace := `
+-- a/go.mod --
+module a
+-- a/x/x.go
+package x
+-- b/go.mod --
+module b
+-- b/c/go.mod --
+module bc
+-- d/gopls.mod --
+module d-goplsworkspace
+-- d/e/go.mod --
+module de
+-- f/g/go.mod --
+module fg
+`
+ dir, err := fake.Tempdir(workspace)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer os.RemoveAll(dir)
+
+ tests := []struct {
+ folder, want string
+ experimental bool
+ }{
+ {"", "", false}, // no module at root, and more than one nested module
+ {"a", "a", false},
+ {"a/x", "a", false},
+ {"b/c", "b/c", false},
+ {"d", "d/e", false},
+ {"d", "d", true},
+ {"d/e", "d/e", false},
+ {"d/e", "d", true},
+ {"f", "f/g", false},
+ {"f", "f", true},
+ }
+
+ for _, test := range tests {
+ ctx := context.Background()
+ rel := fake.RelativeTo(dir)
+ folderURI := span.URIFromPath(rel.AbsPath(test.folder))
+ excludeNothing := func(string) bool { return false }
+ got, err := findWorkspaceRoot(ctx, folderURI, &osFileSource{}, excludeNothing, test.experimental)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if gotf, wantf := filepath.Clean(got.Filename()), rel.AbsPath(test.want); gotf != wantf {
+ t.Errorf("findWorkspaceRoot(%q, %t) = %q, want %q", test.folder, test.experimental, gotf, wantf)
+ }
+ }
+}
+
+func TestInVendor(t *testing.T) {
+ for _, tt := range []struct {
+ path string
+ inVendor bool
+ }{
+ {
+ path: "foo/vendor/x.go",
+ inVendor: false,
+ },
+ {
+ path: "foo/vendor/x/x.go",
+ inVendor: true,
+ },
+ {
+ path: "foo/x.go",
+ inVendor: false,
+ },
+ } {
+ if got := inVendor(span.URIFromPath(tt.path)); got != tt.inVendor {
+ t.Errorf("expected %s inVendor %v, got %v", tt.path, tt.inVendor, got)
+ }
+ }
+}
+
+func TestFilters(t *testing.T) {
+ tests := []struct {
+ filters []string
+ included []string
+ excluded []string
+ }{
+ {
+ included: []string{"x"},
+ },
+ {
+ filters: []string{"-"},
+ excluded: []string{"x", "x/a"},
+ },
+ {
+ filters: []string{"-x", "+y"},
+ included: []string{"y", "y/a", "z"},
+ excluded: []string{"x", "x/a"},
+ },
+ {
+ filters: []string{"-x", "+x/y", "-x/y/z"},
+ included: []string{"x/y", "x/y/a", "a"},
+ excluded: []string{"x", "x/a", "x/y/z/a"},
+ },
+ {
+ filters: []string{"+foobar", "-foo"},
+ included: []string{"foobar", "foobar/a"},
+ excluded: []string{"foo", "foo/a"},
+ },
+ }
+
+ for _, tt := range tests {
+ opts := &source.Options{}
+ opts.DirectoryFilters = tt.filters
+ for _, inc := range tt.included {
+ if pathExcludedByFilter(inc, opts) {
+ t.Errorf("filters %q excluded %v, wanted included", tt.filters, inc)
+ }
+ }
+ for _, exc := range tt.excluded {
+ if !pathExcludedByFilter(exc, opts) {
+ t.Errorf("filters %q included %v, wanted excluded", tt.filters, exc)
+ }
+ }
+ }
+}