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make GoPath a function

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otherwise it could try to execute go binary and panic if no go binary
found. See https://github.com/tendermint/tendermint/issues/782
This commit is contained in:
Anton Kaliaev
2017-10-25 11:01:52 +04:00
parent 93bd2081dd
commit bcf15e527d
2 changed files with 31 additions and 9 deletions
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27
common/os_test.go
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@@ -39,14 +39,31 @@ func TestGoPath(t *testing.T) {
if err != nil {
t.Fatal(err)
}
path = gopath()
path = GoPath()
if path != "~/testgopath" {
t.Fatalf("gopath should return GOPATH env var if set, got %v", path)
t.Fatalf("should get GOPATH env var value, got %v", path)
}
os.Unsetenv("GOPATH")
path = gopath()
if path == "~/testgopath" || path == "" {
t.Fatalf("gopath should return go env GOPATH result if env var does not exist, got %v", path)
path = GoPath()
if path != "~/testgopath" {
t.Fatalf("subsequent calls should return the same value, got %v", path)
}
}
func TestGoPathWithoutEnvVar(t *testing.T) {
// restore original gopath upon exit
path := os.Getenv("GOPATH")
defer func() {
_ = os.Setenv("GOPATH", path)
}()
os.Unsetenv("GOPATH")
// reset cache
gopath = ""
path = GoPath()
if path == "" || path == "~/testgopath" {
t.Fatalf("should get nonempty result of calling go env GOPATH, got %v", path)
}
}