// TestExists validates the ability to load configuration values
// using the OS-level environment variables and read them back.
func TestExists(t *testing.T) {
t.Log("Given the need to read environment variables.")
{
os.Setenv("MYAPP_PROC_ID", "322")
os.Setenv("MYAPP_SOCKET", "./tmp/sockets.po")
os.Setenv("MYAPP_PORT", "4034")
cfg.Init("myapp")
t.Log("\tWhen given a namspace key to search for that exists.")
{
if cfg.Int("proc_id") != 322 {
t.Errorf("\t\t%s Should have key %q with value %d", failed, "proc_id", 322)
} else {
t.Logf("\t\t%s Should have key %q with value %d", succeed, "proc_id", 322)
}
if cfg.String("socket") != "./tmp/sockets.po" {
t.Errorf("\t\t%s Should have key %q with value %q", failed, "socket", "./tmp/sockets.po")
} else {
t.Logf("\t\t%s Should have key %q with value %q", succeed, "socket", "./tmp/sockets.po")
}
if cfg.Int("port") != 4034 {
t.Errorf("\t\t%s Should have key %q with value %d", failed, "port", 4034)
} else {
t.Logf("\t\t%s Should have key %q with value %d", succeed, "port", 4034)
}
}
}
}
// ExampleDev shows how to use the config package.
func ExampleDev() {
// Set up some basic environment variables.
os.Setenv("DOCK_IP", "40.23.233.10")
os.Setenv("DOCK_PORT", "4044")
os.Setenv("DOCK_InitStamp", time.Date(2009, time.November,
10, 15, 0, 0, 0, time.UTC).UTC().Format(time.UnixDate))
// Init() must be called only once with the given namespace to load.
cfg.Init("dock")
// NOTE: All keys must be in lowercase.
// To get the ip.
fmt.Println(cfg.String("ip"))
// To get the port number.
fmt.Println(cfg.Int("port"))
// To get the timestamp.
fmt.Println(cfg.Time("initstamp"))
// Output:
// 40.23.233.10
// 4044
// 2009-11-10 15:00:00 +0000 UTC
}
// TestNotExists validates the ability to load configuration values
// using the OS-level environment variables and panic when something
// is missing.
func TestNotExists(t *testing.T) {
t.Log("Given the need to panic when environment variables are missing.")
{
os.Setenv("MYAPP_PROC_ID", "322")
os.Setenv("MYAPP_SOCKET", "./tmp/sockets.po")
os.Setenv("MYAPP_PORT", "4034")
cfg.Init("myapp")
t.Log("\tWhen given a namspace key to search for that does NOT exist.")
{
shouldPanic(t, "stamp", func() {
cfg.Time("stamp")
})
shouldPanic(t, "pid", func() {
cfg.Int("pid")
})
shouldPanic(t, "dest", func() {
cfg.String("dest")
})
}
}
}