Giant blob of minor changes
[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.0.0-20201028153306-37f0764111ff / go / ssa / ssautil / switch_test.go
diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/go/ssa/ssautil/switch_test.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/go/ssa/ssautil/switch_test.go
new file mode 100644 (file)
index 0000000..a47dbef
--- /dev/null
@@ -0,0 +1,74 @@
+// Copyright 2013 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.
+
+// No testdata on Android.
+
+// +build !android
+
+package ssautil_test
+
+import (
+       "go/parser"
+       "strings"
+       "testing"
+
+       "golang.org/x/tools/go/loader"
+       "golang.org/x/tools/go/ssa"
+       "golang.org/x/tools/go/ssa/ssautil"
+)
+
+func TestSwitches(t *testing.T) {
+       conf := loader.Config{ParserMode: parser.ParseComments}
+       f, err := conf.ParseFile("testdata/switches.go", nil)
+       if err != nil {
+               t.Error(err)
+               return
+       }
+
+       conf.CreateFromFiles("main", f)
+       iprog, err := conf.Load()
+       if err != nil {
+               t.Error(err)
+               return
+       }
+
+       prog := ssautil.CreateProgram(iprog, 0)
+       mainPkg := prog.Package(iprog.Created[0].Pkg)
+       mainPkg.Build()
+
+       for _, mem := range mainPkg.Members {
+               if fn, ok := mem.(*ssa.Function); ok {
+                       if fn.Synthetic != "" {
+                               continue // e.g. init()
+                       }
+                       // Each (multi-line) "switch" comment within
+                       // this function must match the printed form
+                       // of a ConstSwitch.
+                       var wantSwitches []string
+                       for _, c := range f.Comments {
+                               if fn.Syntax().Pos() <= c.Pos() && c.Pos() < fn.Syntax().End() {
+                                       text := strings.TrimSpace(c.Text())
+                                       if strings.HasPrefix(text, "switch ") {
+                                               wantSwitches = append(wantSwitches, text)
+                                       }
+                               }
+                       }
+
+                       switches := ssautil.Switches(fn)
+                       if len(switches) != len(wantSwitches) {
+                               t.Errorf("in %s, found %d switches, want %d", fn, len(switches), len(wantSwitches))
+                       }
+                       for i, sw := range switches {
+                               got := sw.String()
+                               if i >= len(wantSwitches) {
+                                       continue
+                               }
+                               want := wantSwitches[i]
+                               if got != want {
+                                       t.Errorf("in %s, found switch %d: got <<%s>>, want <<%s>>", fn, i, got, want)
+                               }
+                       }
+               }
+       }
+}