[go-nuts] `go test` does not honor -ldflags

[singh . gurjeet]

Please see the code of main.go and main_test.go pasted at the end. Then 
consider the output of these commands. I would have expected the `go test` 
command's output to contain the value 'hello'. From `go help test` output, 
the `go test` command is supposed to honor all build flags, but clearly it 
isn't.

$ go version
go version go1.7.1 darwin/amd64

$ pwd
/tmp/ldflags_test

$ go run -ldflags="-X main.MyVar=hello" main.go
MyVar's value is hello

$ go build -ldflags="-X main.MyVar=hello" && ./ldflags_test
MyVar's value is hello

$ go test -ldflags="-X main.MyVar=hello"
MyVar is empty
exit status 1
FAIL    _/tmp/ldflags_test    0.016s

$ cat main.go
package main

import (
    "fmt"
    "os"
)

var MyVar = ""

func main() {
    if MyVar == "" {
        fmt.Println("MyVar is empty")
        os.Exit(1)
    } else {
        fmt.Println("MyVar's value is " + MyVar)
    }
}

$ cat main_test.go
package main

import (
    "testing"
)

func TestMain(t *testing.T) {
    main()
}

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