cloudinit/initialize/env_test.go
2014-06-25 12:07:48 -07:00

59 lines
1.3 KiB
Go

package initialize
import (
"os"
"testing"
)
func TestEnvironmentApply(t *testing.T) {
os.Setenv("COREOS_PUBLIC_IPV4", "1.2.3.4")
os.Setenv("COREOS_PRIVATE_IPV4", "5.6.7.8")
for _, tt := range []struct {
subs map[string]string
input string
out string
}{
{
// Substituting both values directly should always take precedence
// over environment variables
map[string]string{
"$public_ipv4": "192.0.2.3",
"$private_ipv4": "192.0.2.203",
},
`[Service]
ExecStart=/usr/bin/echo "$public_ipv4"
ExecStop=/usr/bin/echo $private_ipv4
ExecStop=/usr/bin/echo $unknown`,
`[Service]
ExecStart=/usr/bin/echo "192.0.2.3"
ExecStop=/usr/bin/echo 192.0.2.203
ExecStop=/usr/bin/echo $unknown`,
},
{
// Substituting one value directly while falling back with the other
map[string]string{"$private_ipv4": "127.0.0.1"},
"$private_ipv4\n$public_ipv4",
"127.0.0.1\n1.2.3.4",
},
{
// Falling back to environment variables for both values
map[string]string{"foo": "bar"},
"$private_ipv4\n$public_ipv4",
"5.6.7.8\n1.2.3.4",
},
{
// No substitutions
nil,
"$private_ipv4\nfoobar",
"5.6.7.8\nfoobar",
},
} {
env := NewEnvironment("./", "./", "./", "", "", tt.subs)
got := env.Apply(tt.input)
if got != tt.out {
t.Fatalf("Environment incorrectly applied.\ngot:\n%s\nwant:\n%s", got, tt.out)
}
}
}