Source file test/linkx_run.go

     1  // run
     2  
     3  //go:build !nacl && !js && !wasip1 && gc
     4  
     5  // Copyright 2014 The Go Authors. All rights reserved.
     6  // Use of this source code is governed by a BSD-style
     7  // license that can be found in the LICENSE file.
     8  
     9  // Run the linkx test.
    10  
    11  package main
    12  
    13  import (
    14  	"bytes"
    15  	"fmt"
    16  	"os"
    17  	"os/exec"
    18  	"strings"
    19  )
    20  
    21  func main() {
    22  	// test(" ") // old deprecated & removed syntax
    23  	test("=") // new syntax
    24  }
    25  
    26  func test(sep string) {
    27  	// Successful run
    28  	cmd := exec.Command("go", "run", "-ldflags=-X main.tbd"+sep+"hello -X main.overwrite"+sep+"trumped -X main.nosuchsymbol"+sep+"neverseen", "linkx.go")
    29  	var out, errbuf bytes.Buffer
    30  	cmd.Stdout = &out
    31  	cmd.Stderr = &errbuf
    32  	err := cmd.Run()
    33  	if err != nil {
    34  		fmt.Println(errbuf.String())
    35  		fmt.Println(out.String())
    36  		fmt.Println(err)
    37  		os.Exit(1)
    38  	}
    39  
    40  	want := "hello\nhello\nhello\ntrumped\ntrumped\ntrumped\n"
    41  	got := out.String()
    42  	if got != want {
    43  		fmt.Printf("got %q want %q\n", got, want)
    44  		os.Exit(1)
    45  	}
    46  
    47  	// Issue 8810
    48  	cmd = exec.Command("go", "run", "-ldflags=-X main.tbd", "linkx.go")
    49  	_, err = cmd.CombinedOutput()
    50  	if err == nil {
    51  		fmt.Println("-X linker flag should not accept keys without values")
    52  		os.Exit(1)
    53  	}
    54  
    55  	// Issue 9621
    56  	cmd = exec.Command("go", "run", "-ldflags=-X main.b=false -X main.x=42", "linkx.go")
    57  	outx, err := cmd.CombinedOutput()
    58  	if err == nil {
    59  		fmt.Println("-X linker flag should not overwrite non-strings")
    60  		os.Exit(1)
    61  	}
    62  	outstr := string(outx)
    63  	if !strings.Contains(outstr, "main.b") {
    64  		fmt.Printf("-X linker flag did not diagnose overwrite of main.b:\n%s\n", outstr)
    65  		os.Exit(1)
    66  	}
    67  	if !strings.Contains(outstr, "main.x") {
    68  		fmt.Printf("-X linker flag did not diagnose overwrite of main.x:\n%s\n", outstr)
    69  		os.Exit(1)
    70  	}
    71  }
    72  

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