func TestBuildConfig(t *testing.T) {
conn := NewConn()
if err := os.Unsetenv(vars.Env(vars.MaxStackSize)); err != nil {
t.Fatal(err)
}
maxStackSizeFlag = 32
conn.buildConfig()
if s := conn.Config.Get(vars.MaxStackSize); s != 32 {
t.Errorf("MaxStackSize is %v, expected %d", s, 32)
}
if err := os.Setenv(vars.Env(vars.MaxStackSize), "42"); err != nil {
t.Fatal(err)
}
conn.buildConfig()
if s := conn.Config.Get(vars.MaxStackSize); s != 42 {
t.Errorf("MaxStackSize is %v, expected %d", s, 42)
}
if err := os.Setenv(vars.Env(vars.MaxStackSize), "foo"); err != nil {
t.Fatal(err)
}
conn.buildConfig()
if s := conn.Config.Get(vars.MaxStackSize); s != -1 {
t.Errorf("MaxStackSize is %v, expected %v", s, -1)
}
}
// buildConfig sets non-default config values to the Connection
// reading from environment variables and cli flags.
func (c *Conn) buildConfig() {
flagKeys := []flagKey{
{maxStackSizeFlag, vars.MaxStackSize},
{readTimeoutFlag, vars.ReadTimeout},
{writeTimeoutFlag, vars.WriteTimeout},
{portFlag, vars.Port},
}
for _, fk := range flagKeys {
if e := os.Getenv(vars.Env(fk.key)); e != "" {
if i, err := strconv.Atoi(e); err != nil {
c.Config.Set(fk.key, vars.DefaultInt(fk.key))
} else {
c.Config.Set(fk.key, i)
}
continue
}
c.Config.Set(fk.key, fk.flag)
}
}