diff options
author | Christopher Speller <crspeller@gmail.com> | 2018-01-29 14:17:40 -0800 |
---|---|---|
committer | GitHub <noreply@github.com> | 2018-01-29 14:17:40 -0800 |
commit | 961c04cae992eadb42d286d2f85f8a675bdc68c8 (patch) | |
tree | 3408f2d06f847e966c53485e2d54c692cdd037c1 /vendor/google.golang.org/appengine/cmd/aefix/main_test.go | |
parent | 8d66523ba7d9a77129844be476732ebfd5272d64 (diff) | |
download | chat-961c04cae992eadb42d286d2f85f8a675bdc68c8.tar.gz chat-961c04cae992eadb42d286d2f85f8a675bdc68c8.tar.bz2 chat-961c04cae992eadb42d286d2f85f8a675bdc68c8.zip |
Upgrading server dependancies (#8154)
Diffstat (limited to 'vendor/google.golang.org/appengine/cmd/aefix/main_test.go')
-rw-r--r-- | vendor/google.golang.org/appengine/cmd/aefix/main_test.go | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/vendor/google.golang.org/appengine/cmd/aefix/main_test.go b/vendor/google.golang.org/appengine/cmd/aefix/main_test.go new file mode 100644 index 000000000..2151bf29e --- /dev/null +++ b/vendor/google.golang.org/appengine/cmd/aefix/main_test.go @@ -0,0 +1,129 @@ +// Copyright 2011 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 main + +import ( + "go/ast" + "go/parser" + "strings" + "testing" +) + +type testCase struct { + Name string + Fn func(*ast.File) bool + In string + Out string +} + +var testCases []testCase + +func addTestCases(t []testCase, fn func(*ast.File) bool) { + // Fill in fn to avoid repetition in definitions. + if fn != nil { + for i := range t { + if t[i].Fn == nil { + t[i].Fn = fn + } + } + } + testCases = append(testCases, t...) +} + +func fnop(*ast.File) bool { return false } + +func parseFixPrint(t *testing.T, fn func(*ast.File) bool, desc, in string, mustBeGofmt bool) (out string, fixed, ok bool) { + file, err := parser.ParseFile(fset, desc, in, parserMode) + if err != nil { + t.Errorf("%s: parsing: %v", desc, err) + return + } + + outb, err := gofmtFile(file) + if err != nil { + t.Errorf("%s: printing: %v", desc, err) + return + } + if s := string(outb); in != s && mustBeGofmt { + t.Errorf("%s: not gofmt-formatted.\n--- %s\n%s\n--- %s | gofmt\n%s", + desc, desc, in, desc, s) + tdiff(t, in, s) + return + } + + if fn == nil { + for _, fix := range fixes { + if fix.f(file) { + fixed = true + } + } + } else { + fixed = fn(file) + } + + outb, err = gofmtFile(file) + if err != nil { + t.Errorf("%s: printing: %v", desc, err) + return + } + + return string(outb), fixed, true +} + +func TestRewrite(t *testing.T) { + for _, tt := range testCases { + // Apply fix: should get tt.Out. + out, fixed, ok := parseFixPrint(t, tt.Fn, tt.Name, tt.In, true) + if !ok { + continue + } + + // reformat to get printing right + out, _, ok = parseFixPrint(t, fnop, tt.Name, out, false) + if !ok { + continue + } + + if out != tt.Out { + t.Errorf("%s: incorrect output.\n", tt.Name) + if !strings.HasPrefix(tt.Name, "testdata/") { + t.Errorf("--- have\n%s\n--- want\n%s", out, tt.Out) + } + tdiff(t, out, tt.Out) + continue + } + + if changed := out != tt.In; changed != fixed { + t.Errorf("%s: changed=%v != fixed=%v", tt.Name, changed, fixed) + continue + } + + // Should not change if run again. + out2, fixed2, ok := parseFixPrint(t, tt.Fn, tt.Name+" output", out, true) + if !ok { + continue + } + + if fixed2 { + t.Errorf("%s: applied fixes during second round", tt.Name) + continue + } + + if out2 != out { + t.Errorf("%s: changed output after second round of fixes.\n--- output after first round\n%s\n--- output after second round\n%s", + tt.Name, out, out2) + tdiff(t, out, out2) + } + } +} + +func tdiff(t *testing.T, a, b string) { + data, err := diff([]byte(a), []byte(b)) + if err != nil { + t.Error(err) + return + } + t.Error(string(data)) +} |