github.com/gotranspile/cxgo@v0.3.7/gcc_test.go (about)

     1  package cxgo
     2  
     3  import (
     4  	"bytes"
     5  	"io/ioutil"
     6  	"os"
     7  	"path/filepath"
     8  	"runtime/debug"
     9  	"strings"
    10  	"testing"
    11  
    12  	"github.com/stretchr/testify/require"
    13  
    14  	"github.com/gotranspile/cxgo/internal/git"
    15  	"github.com/gotranspile/cxgo/libs"
    16  	"github.com/gotranspile/cxgo/types"
    17  )
    18  
    19  func downloadGCC(t testing.TB, dst string) {
    20  	err := os.MkdirAll(dst, 0755)
    21  	require.NoError(t, err)
    22  
    23  	const (
    24  		repo   = "https://github.com/gcc-mirror/gcc.git"
    25  		sub    = "gcc/testsuite/gcc.c-torture/compile"
    26  		branch = "releases/gcc-10.2.0"
    27  	)
    28  
    29  	dir := filepath.Join(os.TempDir(), "cxgo_gcc_git")
    30  	_ = os.RemoveAll(dir)
    31  
    32  	t.Log("cloning", repo, "to", dir)
    33  	err = git.Clone(repo, branch, dir)
    34  	if err != nil {
    35  		os.RemoveAll(dst)
    36  	}
    37  	require.NoError(t, err)
    38  	defer os.RemoveAll(dir)
    39  
    40  	files, err := filepath.Glob(filepath.Join(dir, sub, "*.c"))
    41  	require.NoError(t, err)
    42  	require.NotEmpty(t, files)
    43  
    44  	for _, path := range files {
    45  		base := filepath.Base(path)
    46  		err = copyFile(path, filepath.Join(dst, base))
    47  		require.NoError(t, err)
    48  	}
    49  }
    50  
    51  func TestGCCExecute(t *testing.T) {
    52  	if testing.Short() || os.Getenv("CXGO_RUN_TESTS_GCC") != "true" {
    53  		t.SkipNow()
    54  	}
    55  	dir := filepath.Join(testDataDir, "gcc")
    56  
    57  	ignoreTests := map[string]string{
    58  		"limits-caselabels": "OOM",
    59  	}
    60  
    61  	blacklist := map[string]struct{}{}
    62  
    63  	isLib := map[string]struct{}{}
    64  
    65  	if _, err := os.Stat(dir); os.IsNotExist(err) {
    66  		downloadGCC(t, dir)
    67  	}
    68  
    69  	files, err := filepath.Glob(filepath.Join(dir, "*.c"))
    70  	require.NoError(t, err)
    71  
    72  	wd, err := os.Getwd()
    73  	require.NoError(t, err)
    74  
    75  	out := filepath.Join(os.TempDir(), "cxgo_test_gcc")
    76  	err = os.MkdirAll(out, 0755)
    77  	require.NoError(t, err)
    78  
    79  	goProject(t, out, wd)
    80  	goProjectMod(t, out)
    81  
    82  	for _, path := range files {
    83  		path := path
    84  		tname := strings.TrimSuffix(filepath.Base(path), ".c")
    85  		_, skip := blacklist[tname]
    86  		t.Run(tname, func(t *testing.T) {
    87  			if reason, ignore := ignoreTests[tname]; ignore {
    88  				t.Skip(reason)
    89  			}
    90  			//t.Parallel()
    91  			defer func() {
    92  				if r := recover(); r != nil {
    93  					if skip {
    94  						defer debug.PrintStack()
    95  						t.Skipf("panic: %v", r)
    96  					} else {
    97  						require.Nil(t, r)
    98  					}
    99  				}
   100  				if !t.Failed() && !t.Skipped() && skip {
   101  					t.Error("blacklisted test pass")
   102  				}
   103  			}()
   104  			oname := filepath.Base(path) + ".go"
   105  			env := libs.NewEnv(types.Config32())
   106  			_, lib := isLib[tname]
   107  			if data, err := ioutil.ReadFile(path); err == nil && !bytes.Contains(data, []byte("main")) {
   108  				t.Log("testing as a library (no main found)")
   109  				lib = true
   110  			}
   111  			pkg := "main"
   112  			if lib {
   113  				pkg = "lib"
   114  			}
   115  			err = Translate(filepath.Dir(path), path, out, env, Config{
   116  				Predef: `
   117  #include <stdlib.h>
   118  #include <string.h>
   119  `,
   120  				Package:            pkg,
   121  				GoFile:             oname,
   122  				MaxDecls:           -1,
   123  				FixImplicitReturns: true,
   124  			})
   125  			failOrSkip(t, err, skip)
   126  
   127  			t.Log(path)
   128  			t.Log(filepath.Join(out, oname))
   129  			goRun(t, out, []string{oname}, runConfig{Arch32: false, Skip: skip, BuildOnly: lib})
   130  		})
   131  	}
   132  }