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|
package imds
import (
"context"
"net/http/httptest"
"strings"
"testing"
"time"
"github.com/google/go-cmp/cmp"
)
func TestGetRegion(t *testing.T) {
cases := map[string]struct {
Body []byte
ExpectRegion string
ExpectTrace []string
ExpectErr string
}{
"success": {
Body: []byte(instanceIdentityDocument),
ExpectRegion: "us-east-1",
ExpectTrace: []string{
getTokenPath,
getInstanceIdentityDocumentPath,
},
},
}
ctx := context.Background()
for name, c := range cases {
t.Run(name, func(t *testing.T) {
trace := newRequestTrace()
server := httptest.NewServer(trace.WrapHandler(
newTestServeMux(t,
newSecureAPIHandler(t,
[]string{"tokenA"},
5*time.Minute,
&successAPIResponseHandler{t: t,
path: getInstanceIdentityDocumentPath,
method: "GET",
body: append([]byte{}, c.Body...),
},
))))
defer server.Close()
// Asserts
client := New(Options{
Endpoint: server.URL,
})
resp, err := client.GetRegion(ctx, nil)
if len(c.ExpectErr) != 0 {
if err == nil {
t.Fatalf("expect error, got none")
}
if e, a := c.ExpectErr, err.Error(); !strings.Contains(a, e) {
t.Fatalf("expect error to contain %v, got %v", e, a)
}
return
}
if err != nil {
t.Fatalf("expect no error, got %v", err)
}
if resp == nil {
t.Fatalf("expect resp, got none")
}
if diff := cmp.Diff(c.ExpectRegion, resp.Region); len(diff) != 0 {
t.Errorf("expect region to match\n%s", diff)
}
if diff := cmp.Diff(c.ExpectTrace, trace.requests); len(diff) != 0 {
t.Errorf("expect trace to match\n%s", diff)
}
})
}
}
|
