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package aws
import (
"testing"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/stretchr/testify/assert"
)
// test doubles
type DummyInstanceDescriber struct {
tags []*ec2.Tag
}
func (d DummyInstanceDescriber) DescribeInstances(*ec2.DescribeInstancesInput) (*ec2.DescribeInstancesOutput, error) {
output := &ec2.DescribeInstancesOutput{
Reservations: []*ec2.Reservation{
&ec2.Reservation{
Instances: []*ec2.Instance{
&ec2.Instance{
Tags: d.tags,
},
},
},
},
}
return output, nil
}
func TestTag_MissingKey(t *testing.T) {
server, ec2meta := MockServer(200, `"i-1234"`)
defer server.Close()
client := DummyInstanceDescriber{
tags: []*ec2.Tag{
&ec2.Tag{
Key: aws.String("foo"),
Value: aws.String("bar"),
},
&ec2.Tag{
Key: aws.String("baz"),
Value: aws.String("qux"),
},
},
}
e := &Ec2Info{
describer: func() InstanceDescriber {
return client
},
metaClient: ec2meta,
cache: make(map[string]interface{}),
}
assert.Empty(t, e.Tag("missing"))
assert.Equal(t, "default", e.Tag("missing", "default"))
}
func TestTag_ValidKey(t *testing.T) {
server, ec2meta := MockServer(200, `"i-1234"`)
defer server.Close()
client := DummyInstanceDescriber{
tags: []*ec2.Tag{
&ec2.Tag{
Key: aws.String("foo"),
Value: aws.String("bar"),
},
&ec2.Tag{
Key: aws.String("baz"),
Value: aws.String("qux"),
},
},
}
e := &Ec2Info{
describer: func() InstanceDescriber {
return client
},
metaClient: ec2meta,
cache: make(map[string]interface{}),
}
assert.Equal(t, "bar", e.Tag("foo"))
assert.Equal(t, "bar", e.Tag("foo", "default"))
}
func TestTag_NonEC2(t *testing.T) {
server, ec2meta := MockServer(404, "")
ec2meta.nonAWS = true
defer server.Close()
client := DummyInstanceDescriber{}
e := &Ec2Info{
describer: func() InstanceDescriber {
return client
},
metaClient: ec2meta,
cache: make(map[string]interface{}),
}
assert.Equal(t, "", e.Tag("foo"))
assert.Equal(t, "default", e.Tag("foo", "default"))
}
func TestNewEc2Info(t *testing.T) {
server, ec2meta := MockServer(200, `"i-1234"`)
defer server.Close()
client := DummyInstanceDescriber{
tags: []*ec2.Tag{
&ec2.Tag{
Key: aws.String("foo"),
Value: aws.String("bar"),
},
&ec2.Tag{
Key: aws.String("baz"),
Value: aws.String("qux"),
},
},
}
e := NewEc2Info()
e.describer = func() InstanceDescriber {
return client
}
e.metaClient = ec2meta
assert.Equal(t, "bar", e.Tag("foo"))
assert.Equal(t, "bar", e.Tag("foo", "default"))
}
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