ehooks_test.go

     1  // Copyright 2022 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package runtime_test
     6  
     7  import (
     8  	"internal/platform"
     9  	"internal/testenv"
    10  	"os/exec"
    11  	"runtime"
    12  	"strings"
    13  	"testing"
    14  )
    15  
    16  func TestExitHooks(t *testing.T) {
    17  	bmodes := []string{""}
    18  	if testing.Short() {
    19  		t.Skip("skipping due to -short")
    20  	}
    21  	// Note the HasCGO() test below; this is to prevent the test
    22  	// running if CGO_ENABLED=0 is in effect.
    23  	haverace := platform.RaceDetectorSupported(runtime.GOOS, runtime.GOARCH)
    24  	if haverace && testenv.HasCGO() {
    25  		bmodes = append(bmodes, "-race")
    26  	}
    27  	for _, bmode := range bmodes {
    28  		scenarios := []struct {
    29  			mode     string
    30  			expected string
    31  			musthave string
    32  		}{
    33  			{
    34  				mode:     "simple",
    35  				expected: "bar foo",
    36  				musthave: "",
    37  			},
    38  			{
    39  				mode:     "goodexit",
    40  				expected: "orange apple",
    41  				musthave: "",
    42  			},
    43  			{
    44  				mode:     "badexit",
    45  				expected: "blub blix",
    46  				musthave: "",
    47  			},
    48  			{
    49  				mode:     "panics",
    50  				expected: "",
    51  				musthave: "fatal error: internal error: exit hook invoked panic",
    52  			},
    53  			{
    54  				mode:     "callsexit",
    55  				expected: "",
    56  				musthave: "fatal error: internal error: exit hook invoked exit",
    57  			},
    58  		}
    59  
    60  		exe, err := buildTestProg(t, "testexithooks", bmode)
    61  		if err != nil {
    62  			t.Fatal(err)
    63  		}
    64  
    65  		bt := ""
    66  		if bmode != "" {
    67  			bt = " bmode: " + bmode
    68  		}
    69  		for _, s := range scenarios {
    70  			cmd := exec.Command(exe, []string{"-mode", s.mode}...)
    71  			out, _ := cmd.CombinedOutput()
    72  			outs := strings.ReplaceAll(string(out), "\n", " ")
    73  			outs = strings.TrimSpace(outs)
    74  			if s.expected != "" {
    75  				if s.expected != outs {
    76  					t.Logf("raw output: %q", outs)
    77  					t.Errorf("failed%s mode %s: wanted %q got %q", bt,
    78  						s.mode, s.expected, outs)
    79  				}
    80  			} else if s.musthave != "" {
    81  				if !strings.Contains(outs, s.musthave) {
    82  					t.Logf("raw output: %q", outs)
    83  					t.Errorf("failed mode %s: output does not contain %q",
    84  						s.mode, s.musthave)
    85  				}
    86  			} else {
    87  				panic("badly written scenario")
    88  			}
    89  		}
    90  	}
    91  }
    92
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