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506 lines
11 KiB
Go
506 lines
11 KiB
Go
5 years ago
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build ignore
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// Test cases for mkmerge.go.
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// Usage:
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// $ go test mkmerge.go mkmerge_test.go
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package main
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import (
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"bytes"
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"fmt"
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"go/parser"
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"go/token"
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"html/template"
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"strings"
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"testing"
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)
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func TestImports(t *testing.T) {
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t.Run("importName", func(t *testing.T) {
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cases := []struct {
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src string
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ident string
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}{
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{`"syscall"`, "syscall"},
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{`. "foobar"`, "."},
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{`"go/ast"`, "ast"},
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{`moo "go/format"`, "moo"},
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{`. "go/token"`, "."},
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{`"golang.org/x/sys/unix"`, "unix"},
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{`nix "golang.org/x/sys/unix"`, "nix"},
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{`_ "golang.org/x/sys/unix"`, "_"},
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}
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for _, c := range cases {
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pkgSrc := fmt.Sprintf("package main\nimport %s", c.src)
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f, err := parser.ParseFile(token.NewFileSet(), "", pkgSrc, parser.ImportsOnly)
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if err != nil {
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t.Error(err)
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continue
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}
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if len(f.Imports) != 1 {
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t.Errorf("Got %d imports, expected 1", len(f.Imports))
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continue
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}
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got, err := importName(f.Imports[0])
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if err != nil {
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t.Fatal(err)
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}
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if got != c.ident {
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t.Errorf("Got %q, expected %q", got, c.ident)
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}
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}
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})
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t.Run("filterImports", func(t *testing.T) {
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cases := []struct{ before, after string }{
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{`package test
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import (
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"foo"
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"bar"
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)`,
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"package test\n"},
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{`package test
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import (
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"foo"
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"bar"
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)
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func useFoo() { foo.Usage() }`,
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`package test
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import (
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"foo"
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)
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func useFoo() { foo.Usage() }
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`},
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}
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for _, c := range cases {
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got, err := filterImports([]byte(c.before))
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if err != nil {
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t.Error(err)
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}
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if string(got) != c.after {
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t.Errorf("Got:\n%s\nExpected:\n%s\n", got, c.after)
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}
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}
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})
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}
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func TestMerge(t *testing.T) {
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// Input architecture files
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inTmpl := template.Must(template.New("input").Parse(`
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// Package comments
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// build directives for arch{{.}}
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// +build goos,arch{{.}}
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package main
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/*
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#include <stdint.h>
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#include <stddef.h>
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int utimes(uintptr_t, uintptr_t);
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int utimensat(int, uintptr_t, uintptr_t, int);
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*/
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import "C"
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// The imports
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import (
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"commonDep"
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"uniqueDep{{.}}"
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)
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// Vars
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var (
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commonVar = commonDep.Use("common")
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uniqueVar{{.}} = "unique{{.}}"
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)
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// Common free standing comment
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// Common comment
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const COMMON_INDEPENDENT = 1234
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const UNIQUE_INDEPENDENT_{{.}} = "UNIQUE_INDEPENDENT_{{.}}"
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// Group comment
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const (
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COMMON_GROUP = "COMMON_GROUP"
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UNIQUE_GROUP_{{.}} = "UNIQUE_GROUP_{{.}}"
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)
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// Group2 comment
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const (
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UNIQUE_GROUP21_{{.}} = "UNIQUE_GROUP21_{{.}}"
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UNIQUE_GROUP22_{{.}} = "UNIQUE_GROUP22_{{.}}"
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)
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// Group3 comment
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const (
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sub1Common1 = 11
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sub1Unique2{{.}} = 12
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sub1Common3_LONG = 13
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sub2Unique1{{.}} = 21
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sub2Common2 = 22
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sub2Common3 = 23
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sub2Unique4{{.}} = 24
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)
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type commonInt int
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type uniqueInt{{.}} int
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func commonF() string {
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return commonDep.Use("common")
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}
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func uniqueF() string {
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C.utimes(0, 0)
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return uniqueDep{{.}}.Use("{{.}}")
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}
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// Group4 comment
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const (
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sub3Common1 = 31
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sub3Unique2{{.}} = 32
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sub3Unique3{{.}} = 33
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sub3Common4 = 34
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sub4Common1, sub4Unique2{{.}} = 41, 42
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sub4Unique3{{.}}, sub4Common4 = 43, 44
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)
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`))
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// Filtered architecture files
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outTmpl := template.Must(template.New("output").Parse(`// Package comments
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// build directives for arch{{.}}
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// +build goos,arch{{.}}
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package main
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/*
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#include <stdint.h>
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#include <stddef.h>
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int utimes(uintptr_t, uintptr_t);
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int utimensat(int, uintptr_t, uintptr_t, int);
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*/
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import "C"
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// The imports
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import (
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"commonDep"
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"uniqueDep{{.}}"
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)
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// Vars
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var (
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commonVar = commonDep.Use("common")
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uniqueVar{{.}} = "unique{{.}}"
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)
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const UNIQUE_INDEPENDENT_{{.}} = "UNIQUE_INDEPENDENT_{{.}}"
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// Group comment
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const (
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UNIQUE_GROUP_{{.}} = "UNIQUE_GROUP_{{.}}"
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)
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// Group2 comment
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const (
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UNIQUE_GROUP21_{{.}} = "UNIQUE_GROUP21_{{.}}"
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UNIQUE_GROUP22_{{.}} = "UNIQUE_GROUP22_{{.}}"
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)
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// Group3 comment
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const (
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sub1Unique2{{.}} = 12
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sub2Unique1{{.}} = 21
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sub2Unique4{{.}} = 24
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)
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type uniqueInt{{.}} int
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func uniqueF() string {
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C.utimes(0, 0)
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return uniqueDep{{.}}.Use("{{.}}")
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}
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// Group4 comment
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const (
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sub3Unique2{{.}} = 32
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sub3Unique3{{.}} = 33
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sub4Common1, sub4Unique2{{.}} = 41, 42
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sub4Unique3{{.}}, sub4Common4 = 43, 44
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)
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`))
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const mergedFile = `// Package comments
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package main
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// The imports
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import (
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"commonDep"
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)
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// Common free standing comment
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// Common comment
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const COMMON_INDEPENDENT = 1234
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// Group comment
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const (
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COMMON_GROUP = "COMMON_GROUP"
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)
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// Group3 comment
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const (
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sub1Common1 = 11
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sub1Common3_LONG = 13
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sub2Common2 = 22
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sub2Common3 = 23
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)
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type commonInt int
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func commonF() string {
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return commonDep.Use("common")
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}
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// Group4 comment
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const (
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sub3Common1 = 31
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sub3Common4 = 34
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)
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`
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// Generate source code for different "architectures"
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var inFiles, outFiles []srcFile
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for _, arch := range strings.Fields("A B C D") {
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buf := new(bytes.Buffer)
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err := inTmpl.Execute(buf, arch)
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if err != nil {
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t.Fatal(err)
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}
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inFiles = append(inFiles, srcFile{"file" + arch, buf.Bytes()})
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buf = new(bytes.Buffer)
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err = outTmpl.Execute(buf, arch)
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if err != nil {
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t.Fatal(err)
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}
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outFiles = append(outFiles, srcFile{"file" + arch, buf.Bytes()})
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}
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t.Run("getCodeSet", func(t *testing.T) {
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got, err := getCodeSet(inFiles[0].src)
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if err != nil {
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t.Fatal(err)
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}
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expectedElems := []codeElem{
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{token.COMMENT, "Package comments\n"},
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{token.COMMENT, "build directives for archA\n"},
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{token.COMMENT, "+build goos,archA\n"},
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{token.CONST, `COMMON_INDEPENDENT = 1234`},
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{token.CONST, `UNIQUE_INDEPENDENT_A = "UNIQUE_INDEPENDENT_A"`},
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{token.CONST, `COMMON_GROUP = "COMMON_GROUP"`},
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{token.CONST, `UNIQUE_GROUP_A = "UNIQUE_GROUP_A"`},
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{token.CONST, `UNIQUE_GROUP21_A = "UNIQUE_GROUP21_A"`},
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{token.CONST, `UNIQUE_GROUP22_A = "UNIQUE_GROUP22_A"`},
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{token.CONST, `sub1Common1 = 11`},
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{token.CONST, `sub1Unique2A = 12`},
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{token.CONST, `sub1Common3_LONG = 13`},
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{token.CONST, `sub2Unique1A = 21`},
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{token.CONST, `sub2Common2 = 22`},
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{token.CONST, `sub2Common3 = 23`},
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{token.CONST, `sub2Unique4A = 24`},
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{token.CONST, `sub3Common1 = 31`},
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{token.CONST, `sub3Unique2A = 32`},
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{token.CONST, `sub3Unique3A = 33`},
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{token.CONST, `sub3Common4 = 34`},
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{token.CONST, `sub4Common1, sub4Unique2A = 41, 42`},
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{token.CONST, `sub4Unique3A, sub4Common4 = 43, 44`},
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{token.TYPE, `commonInt int`},
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|
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{token.TYPE, `uniqueIntA int`},
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|
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{token.FUNC, `func commonF() string {
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|
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return commonDep.Use("common")
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|
|
}`},
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|
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{token.FUNC, `func uniqueF() string {
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|
|
C.utimes(0, 0)
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|
|
return uniqueDepA.Use("A")
|
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|
|
}`},
|
||
|
|
}
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|
|
expected := newCodeSet()
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||
|
|
for _, d := range expectedElems {
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|
|
expected.add(d)
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|
|
}
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|
|
|
||
|
|
if len(got.set) != len(expected.set) {
|
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|
|
t.Errorf("Got %d codeElems, expected %d", len(got.set), len(expected.set))
|
||
|
|
}
|
||
|
|
for expElem := range expected.set {
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||
|
|
if !got.has(expElem) {
|
||
|
|
t.Errorf("Didn't get expected codeElem %#v", expElem)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for gotElem := range got.set {
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|
|
if !expected.has(gotElem) {
|
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|
|
t.Errorf("Got unexpected codeElem %#v", gotElem)
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||
|
|
}
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||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
t.Run("getCommonSet", func(t *testing.T) {
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|
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got, err := getCommonSet(inFiles)
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|
|
if err != nil {
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|
|
t.Fatal(err)
|
||
|
|
}
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||
|
|
|
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expected := newCodeSet()
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expected.add(codeElem{token.COMMENT, "Package comments\n"})
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|
expected.add(codeElem{token.CONST, `COMMON_INDEPENDENT = 1234`})
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|
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expected.add(codeElem{token.CONST, `COMMON_GROUP = "COMMON_GROUP"`})
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expected.add(codeElem{token.CONST, `sub1Common1 = 11`})
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|
|
expected.add(codeElem{token.CONST, `sub1Common3_LONG = 13`})
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expected.add(codeElem{token.CONST, `sub2Common2 = 22`})
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|
|
expected.add(codeElem{token.CONST, `sub2Common3 = 23`})
|
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|
|
expected.add(codeElem{token.CONST, `sub3Common1 = 31`})
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|
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expected.add(codeElem{token.CONST, `sub3Common4 = 34`})
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|
|
expected.add(codeElem{token.TYPE, `commonInt int`})
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|
|
expected.add(codeElem{token.FUNC, `func commonF() string {
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|
|
return commonDep.Use("common")
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||
|
|
}`})
|
||
|
|
|
||
|
|
if len(got.set) != len(expected.set) {
|
||
|
|
t.Errorf("Got %d codeElems, expected %d", len(got.set), len(expected.set))
|
||
|
|
}
|
||
|
|
for expElem := range expected.set {
|
||
|
|
if !got.has(expElem) {
|
||
|
|
t.Errorf("Didn't get expected codeElem %#v", expElem)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for gotElem := range got.set {
|
||
|
|
if !expected.has(gotElem) {
|
||
|
|
t.Errorf("Got unexpected codeElem %#v", gotElem)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
t.Run("filter(keepCommon)", func(t *testing.T) {
|
||
|
|
commonSet, err := getCommonSet(inFiles)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
got, err := filter(inFiles[0].src, commonSet.keepCommon)
|
||
|
|
expected := []byte(mergedFile)
|
||
|
|
|
||
|
|
if !bytes.Equal(got, expected) {
|
||
|
|
t.Errorf("Got:\n%s\nExpected:\n%s", addLineNr(got), addLineNr(expected))
|
||
|
|
diffLines(t, got, expected)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
t.Run("filter(keepArchSpecific)", func(t *testing.T) {
|
||
|
|
commonSet, err := getCommonSet(inFiles)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
for i := range inFiles {
|
||
|
|
got, err := filter(inFiles[i].src, commonSet.keepArchSpecific)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
expected := outFiles[i].src
|
||
|
|
|
||
|
|
if !bytes.Equal(got, expected) {
|
||
|
|
t.Errorf("Got:\n%s\nExpected:\n%s", addLineNr(got), addLineNr(expected))
|
||
|
|
diffLines(t, got, expected)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestMergedName(t *testing.T) {
|
||
|
|
t.Run("getValidGOOS", func(t *testing.T) {
|
||
|
|
testcases := []struct {
|
||
|
|
filename, goos string
|
||
|
|
ok bool
|
||
|
|
}{
|
||
|
|
{"zerrors_aix.go", "aix", true},
|
||
|
|
{"zerrors_darwin.go", "darwin", true},
|
||
|
|
{"zerrors_dragonfly.go", "dragonfly", true},
|
||
|
|
{"zerrors_freebsd.go", "freebsd", true},
|
||
|
|
{"zerrors_linux.go", "linux", true},
|
||
|
|
{"zerrors_netbsd.go", "netbsd", true},
|
||
|
|
{"zerrors_openbsd.go", "openbsd", true},
|
||
|
|
{"zerrors_solaris.go", "solaris", true},
|
||
|
|
{"zerrors_multics.go", "", false},
|
||
|
|
}
|
||
|
|
for _, tc := range testcases {
|
||
|
|
goos, ok := getValidGOOS(tc.filename)
|
||
|
|
if goos != tc.goos {
|
||
|
|
t.Errorf("got GOOS %q, expected %q", goos, tc.goos)
|
||
|
|
}
|
||
|
|
if ok != tc.ok {
|
||
|
|
t.Errorf("got ok %v, expected %v", ok, tc.ok)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
// Helper functions to diff test sources
|
||
|
|
|
||
|
|
func diffLines(t *testing.T, got, expected []byte) {
|
||
|
|
t.Helper()
|
||
|
|
|
||
|
|
gotLines := bytes.Split(got, []byte{'\n'})
|
||
|
|
expLines := bytes.Split(expected, []byte{'\n'})
|
||
|
|
|
||
|
|
i := 0
|
||
|
|
for i < len(gotLines) && i < len(expLines) {
|
||
|
|
if !bytes.Equal(gotLines[i], expLines[i]) {
|
||
|
|
t.Errorf("Line %d: Got:\n%q\nExpected:\n%q", i+1, gotLines[i], expLines[i])
|
||
|
|
return
|
||
|
|
}
|
||
|
|
i++
|
||
|
|
}
|
||
|
|
|
||
|
|
if i < len(gotLines) && i >= len(expLines) {
|
||
|
|
t.Errorf("Line %d: got %q, expected EOF", i+1, gotLines[i])
|
||
|
|
}
|
||
|
|
if i >= len(gotLines) && i < len(expLines) {
|
||
|
|
t.Errorf("Line %d: got EOF, expected %q", i+1, gotLines[i])
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func addLineNr(src []byte) []byte {
|
||
|
|
lines := bytes.Split(src, []byte("\n"))
|
||
|
|
for i, line := range lines {
|
||
|
|
lines[i] = []byte(fmt.Sprintf("%d: %s", i+1, line))
|
||
|
|
}
|
||
|
|
return bytes.Join(lines, []byte("\n"))
|
||
|
|
}
|