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51068abc27
constellation/cli/ec2/client/instances_test.go
datosh 51068abc27 Ref/want err from err expected (#82) 
consistent naming for test values using 'want' instead of 'expect/ed'
2022-04-26 16:54:05 +02:00

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package client
import (
"context"
"errors"
"testing"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
awsec2 "github.com/aws/aws-sdk-go-v2/service/ec2"
"github.com/aws/aws-sdk-go-v2/service/ec2/types"
"github.com/edgelesssys/constellation/cli/ec2"
"github.com/stretchr/testify/assert"
)
func TestCreateInstances(t *testing.T) {
testInstances := []types.Instance{
{
InstanceId: aws.String("id-1"),
PublicIpAddress: aws.String("192.0.2.1"),
PrivateIpAddress: aws.String("192.0.2.2"),
State: &stateRunning,
},
{
InstanceId: aws.String("id-2"),
PublicIpAddress: aws.String("192.0.2.3"),
PrivateIpAddress: aws.String("192.0.2.4"),
State: &stateRunning,
},
{
InstanceId: aws.String("id-3"),
PublicIpAddress: aws.String("192.0.2.5"),
PrivateIpAddress: aws.String("192.0.2.6"),
State: &stateRunning,
},
}
someErr := errors.New("failed")
var noErr error
testCases := map[string]struct {
api stubAPI
instances ec2.Instances
securityGroup string
wantErr bool
wantInstances ec2.Instances
}{
"create": {
api: stubAPI{instances: testInstances},
securityGroup: "sg-test",
wantInstances: ec2.Instances{
"id-1": {PublicIP: "192.0.2.1", PrivateIP: "192.0.2.2"},
"id-2": {PublicIP: "192.0.2.3", PrivateIP: "192.0.2.4"},
"id-3": {PublicIP: "192.0.2.5", PrivateIP: "192.0.2.6"},
},
},
"client already has instances": {
api: stubAPI{instances: testInstances},
instances: ec2.Instances{"id-4": {}, "id-5": {}},
securityGroup: "sg-test",
wantInstances: ec2.Instances{
"id-1": {PublicIP: "192.0.2.1", PrivateIP: "192.0.2.2"},
"id-2": {PublicIP: "192.0.2.3", PrivateIP: "192.0.2.4"},
"id-3": {PublicIP: "192.0.2.5", PrivateIP: "192.0.2.6"},
"id-4": {},
"id-5": {},
},
},
"client already has same instance id": {
api: stubAPI{instances: testInstances},
instances: ec2.Instances{"id-1": {}, "id-4": {}, "id-5": {}},
securityGroup: "sg-test",
wantErr: false,
wantInstances: ec2.Instances{
"id-1": {PublicIP: "192.0.2.1", PrivateIP: "192.0.2.2"},
"id-2": {PublicIP: "192.0.2.3", PrivateIP: "192.0.2.4"},
"id-3": {PublicIP: "192.0.2.5", PrivateIP: "192.0.2.6"},
"id-4": {},
"id-5": {},
},
},
"client has no security group": {
api: stubAPI{},
wantErr: true,
},
"run API error": {
api: stubAPI{runInstancesErr: someErr},
securityGroup: "sg-test",
wantErr: true,
},
"runDryRun API error": {
api: stubAPI{runInstancesDryRunErr: &someErr},
securityGroup: "sg-test",
wantErr: true,
},
"runDryRun missing expected API error": {
api: stubAPI{runInstancesDryRunErr: &noErr},
securityGroup: "sg-test",
wantErr: true,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
client := &Client{
api: tc.api,
instances: tc.instances,
timeout: time.Millisecond,
securityGroup: tc.securityGroup,
}
if client.instances == nil {
client.instances = make(map[string]ec2.Instance)
}
input := CreateInput{
ImageId: "test-image",
InstanceType: "",
Count: 13,
}
err := client.CreateInstances(context.Background(), input)
if tc.wantErr {
assert.Error(err)
} else {
assert.NoError(err)
assert.ElementsMatch(tc.wantInstances.IDs(), client.instances.IDs())
assert.ElementsMatch(tc.wantInstances.PublicIPs(), client.instances.PublicIPs())
assert.ElementsMatch(tc.wantInstances.PrivateIPs(), client.instances.PrivateIPs())
}
})
}
}
func TestTerminateInstances(t *testing.T) {
testAWSInstances := []types.Instance{
{InstanceId: aws.String("id-1"), State: &stateTerminated},
{InstanceId: aws.String("id-2"), State: &stateTerminated},
{InstanceId: aws.String("id-3"), State: &stateTerminated},
}
someErr := errors.New("failed")
var noErr error
testCases := map[string]struct {
api stubAPI
instances ec2.Instances
wantErr bool
}{
"client with instances": {
api: stubAPI{instances: testAWSInstances},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: false,
},
"client no instances set": {
api: stubAPI{},
},
"terminate API error": {
api: stubAPI{terminateInstancesErr: someErr},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
"terminateDryRun API error": {
api: stubAPI{terminateInstancesDryRunErr: &someErr},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
"terminateDryRun miss expected API error": {
api: stubAPI{terminateInstancesDryRunErr: &noErr},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
client := &Client{
api: tc.api,
instances: tc.instances,
timeout: time.Millisecond,
}
if client.instances == nil {
client.instances = make(map[string]ec2.Instance)
}
err := client.TerminateInstances(context.Background())
if tc.wantErr {
assert.Error(err)
} else {
assert.NoError(err)
assert.Empty(client.instances)
}
})
}
}
func TestWaitStateRunning(t *testing.T) {
testCases := map[string]struct {
api api
instances ec2.Instances
wantErr bool
}{
"instances are running": {
api: stubAPI{instances: []types.Instance{
{
InstanceId: aws.String("id-1"),
State: &stateRunning,
},
{
InstanceId: aws.String("id-2"),
State: &stateRunning,
},
{
InstanceId: aws.String("id-3"),
State: &stateRunning,
},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: false,
},
"one instance running, rest nil": {
api: stubAPI{instances: []types.Instance{
{
InstanceId: aws.String("id-1"),
State: &stateRunning,
},
{InstanceId: aws.String("id-2")},
{InstanceId: aws.String("id-3")},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: false,
},
"one instance terminated, rest nil": {
api: stubAPI{instances: []types.Instance{
{
InstanceId: aws.String("id-1"),
State: &stateTerminated,
},
{InstanceId: aws.String("id-2")},
{InstanceId: aws.String("id-3")},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
"instances with different state": {
api: stubAPI{instances: []types.Instance{
{
InstanceId: aws.String("id-1"),
State: &stateTerminated,
},
{
InstanceId: aws.String("id-2"),
State: &stateRunning,
},
{InstanceId: aws.String("id-3")},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
"all instances have nil state": {
api: stubAPI{instances: []types.Instance{
{InstanceId: aws.String("id-1")},
{InstanceId: aws.String("id-2")},
{InstanceId: aws.String("id-3")},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
"client has no instances": {
api: &stubAPI{},
wantErr: true,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
client := &Client{
api: tc.api,
instances: tc.instances,
timeout: time.Millisecond,
}
if client.instances == nil {
client.instances = make(map[string]ec2.Instance)
}
err := client.waitStateRunning(context.Background())
if tc.wantErr {
assert.Error(err)
} else {
assert.NoError(err)
}
})
}
}
func TestWaitStateTerminated(t *testing.T) {
testCases := map[string]struct {
api api
instances ec2.Instances
wantErr bool
}{
"instances are terminated": {
api: stubAPI{instances: []types.Instance{
{
InstanceId: aws.String("id-1"),
State: &stateTerminated,
},
{
InstanceId: aws.String("id-2"),
State: &stateTerminated,
},
{
InstanceId: aws.String("id-3"),
State: &stateTerminated,
},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: false,
},
"one instance terminated, rest nil": {
api: stubAPI{instances: []types.Instance{
{
InstanceId: aws.String("id-1"),
State: &stateTerminated,
},
{InstanceId: aws.String("id-2")},
{InstanceId: aws.String("id-3")},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: false,
},
"one instance running, rest nil": {
api: stubAPI{instances: []types.Instance{
{
InstanceId: aws.String("id-1"),
State: &stateRunning,
},
{InstanceId: aws.String("id-2")},
{InstanceId: aws.String("id-3")},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
"instances with different state": {
api: stubAPI{instances: []types.Instance{
{
InstanceId: aws.String("id-1"),
State: &stateTerminated,
},
{
InstanceId: aws.String("id-2"),
State: &stateRunning,
},
{InstanceId: aws.String("id-3")},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
"all instances have nil state": {
api: stubAPI{instances: []types.Instance{
{InstanceId: aws.String("id-1")},
{InstanceId: aws.String("id-2")},
{InstanceId: aws.String("id-3")},
}},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
"client has no instances": {
api: &stubAPI{},
wantErr: true,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
client := &Client{
api: tc.api,
instances: tc.instances,
timeout: time.Millisecond,
}
if client.instances == nil {
client.instances = make(map[string]ec2.Instance)
}
err := client.waitStateTerminated(context.Background())
if tc.wantErr {
assert.Error(err)
} else {
assert.NoError(err)
}
})
}
}
func TestTagInstances(t *testing.T) {
testTags := ec2.Tags{
{Key: "Name", Value: "Test"},
{Key: "Foo", Value: "Bar"},
}
testCases := map[string]struct {
api stubAPI
instances ec2.Instances
wantErr bool
}{
"tag": {
api: stubAPI{},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: false,
},
"client without instances": {
api: stubAPI{createTagsErr: errors.New("failed")},
wantErr: true,
},
"tag API error": {
api: stubAPI{createTagsErr: errors.New("failed")},
instances: ec2.Instances{"id-1": {}, "id-2": {}, "id-3": {}},
wantErr: true,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
client := &Client{
api: tc.api,
instances: tc.instances,
timeout: time.Millisecond,
}
if client.instances == nil {
client.instances = make(map[string]ec2.Instance)
}
err := client.tagInstances(context.Background(), testTags)
if tc.wantErr {
assert.Error(err)
} else {
assert.NoError(err)
}
})
}
}
func TestEc2RunInstanceInput(t *testing.T) {
assert := assert.New(t)
testCases := []struct {
in CreateInput
wantOutput awsec2.RunInstancesInput
}{
{
in: CreateInput{
ImageId: "test-image",
InstanceType: "4xlarge",
Count: 13,
securityGroupIds: []string{"test-sec-group"},
},
wantOutput: awsec2.RunInstancesInput{
ImageId: aws.String("test-image"),
InstanceType: types.InstanceTypeC5a4xlarge,
MinCount: aws.Int32(int32(13)),
MaxCount: aws.Int32(int32(13)),
EnclaveOptions: &types.EnclaveOptionsRequest{Enabled: aws.Bool(true)},
SecurityGroupIds: []string{"test-sec-group"},
},
},
{
in: CreateInput{
ImageId: "test-image-2",
InstanceType: "12xlarge",
Count: 2,
securityGroupIds: []string{"test-sec-group-2"},
},
wantOutput: awsec2.RunInstancesInput{
ImageId: aws.String("test-image-2"),
InstanceType: types.InstanceTypeC5a12xlarge,
MinCount: aws.Int32(int32(2)),
MaxCount: aws.Int32(int32(2)),
EnclaveOptions: &types.EnclaveOptionsRequest{Enabled: aws.Bool(true)},
SecurityGroupIds: []string{"test-sec-group-2"},
},
},
}
for _, tc := range testCases {
out := tc.in.AWS()
assert.Equal(tc.wantOutput, *out)
}
}
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