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package parameterstore
import (
"context"
"strings"
"testing"
"github.com/aws/aws-sdk-go-v2/aws"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/ssm"
"github.com/aws/aws-sdk-go-v2/service/ssm/types"
"github.com/aws/smithy-go/middleware"
"github.com/knadh/koanf/v2"
"github.com/stretchr/testify/assert"
)
func TestParameterStore(t *testing.T) {
c, err := config.LoadDefaultConfig(
context.TODO(),
config.WithRegion("us-east-1"),
config.WithAPIOptions([]func(*middleware.Stack) error{
// Mock the SDK response using the middleware.
func(stack *middleware.Stack) error {
type key struct{}
err := stack.Initialize.Add(
middleware.InitializeMiddlewareFunc(
"MockInitialize",
func(ctx context.Context, in middleware.InitializeInput, next middleware.InitializeHandler) (out middleware.InitializeOutput, metadata middleware.Metadata, err error) {
switch v := in.Parameters.(type) {
case *ssm.GetParametersByPathInput:
ctx = middleware.WithStackValue(ctx, key{}, v.NextToken)
}
return next.HandleInitialize(ctx, in)
},
), middleware.Before,
)
if err != nil {
return err
}
return stack.Finalize.Add(
middleware.FinalizeMiddlewareFunc(
"MockFinalize",
func(ctx context.Context, input middleware.FinalizeInput, handler middleware.FinalizeHandler) (middleware.FinalizeOutput, middleware.Metadata, error) {
switch awsmiddleware.GetOperationName(ctx) {
case "GetParameter":
return middleware.FinalizeOutput{
Result: &ssm.GetParameterOutput{
Parameter: &types.Parameter{
Name: aws.String("prefix.parent1"),
Value: aws.String("alice"),
},
},
}, middleware.Metadata{}, nil
case "GetParameters":
return middleware.FinalizeOutput{
Result: &ssm.GetParametersOutput{
Parameters: []types.Parameter{
{
Name: aws.String("prefix.parent1"),
Value: aws.String("alice"),
},
{
Name: aws.String("prefix.parent2.child1"),
Value: aws.String("bob"),
},
},
},
}, middleware.Metadata{}, nil
case "GetParametersByPath":
var output ssm.GetParametersByPathOutput
if middleware.GetStackValue(ctx, key{}) == (*string)(nil) {
output = ssm.GetParametersByPathOutput{
NextToken: aws.String("nextToken"),
Parameters: []types.Parameter{
{
Name: aws.String("prefix.parent1"),
Value: aws.String("alice"),
},
{
Name: aws.String("prefix.parent2.child1"),
Value: aws.String("bob"),
},
},
}
} else {
output = ssm.GetParametersByPathOutput{
Parameters: []types.Parameter{
{
Name: aws.String("prefix.parent2.child2.grandchild1"),
Value: aws.String("carol"),
},
},
}
}
return middleware.FinalizeOutput{Result: &output}, middleware.Metadata{}, nil
default:
return middleware.FinalizeOutput{}, middleware.Metadata{}, nil
}
},
),
middleware.Before,
)
},
}),
)
assert.NoError(t, err)
client := ssm.NewFromConfig(c)
tests := map[string]struct {
provider koanf.Provider
want map[string]interface{}
}{
"get a parameter": {
provider: ProviderWithClient(Config[ssm.GetParameterInput]{
Delim: ".",
Input: ssm.GetParameterInput{Name: aws.String("parent1")},
Callback: func(key, value string) (string, interface{}) { return strings.TrimPrefix(key, "prefix."), value },
}, client),
want: map[string]interface{}{
"parent1": "alice",
},
},
"get parameters": {
provider: ProviderWithClient(Config[ssm.GetParametersInput]{
Delim: ".",
Input: ssm.GetParametersInput{Names: []string{"parent1", "parent2.child1"}},
Callback: func(key, value string) (string, interface{}) { return strings.TrimPrefix(key, "prefix."), value },
}, client),
want: map[string]interface{}{
"parent1": "alice",
"parent2": map[string]interface{}{
"child1": "bob",
},
},
},
"get parameters by path": {
provider: ProviderWithClient(Config[ssm.GetParametersByPathInput]{
Delim: ".",
Input: ssm.GetParametersByPathInput{Path: aws.String("/")},
Callback: func(key, value string) (string, interface{}) { return strings.TrimPrefix(key, "prefix."), value },
}, client),
want: map[string]interface{}{
"parent1": "alice",
"parent2": map[string]interface{}{
"child1": "bob",
"child2": map[string]interface{}{
"grandchild1": "carol",
},
},
},
},
"get a parameter but it is ignored": {
provider: ProviderWithClient(Config[ssm.GetParameterInput]{
Delim: ".",
Input: ssm.GetParameterInput{Name: aws.String("parent1")},
Callback: func(key, value string) (string, interface{}) {
return strings.TrimPrefix(strings.TrimPrefix(key, "prefix."), "parent1"), value
},
}, client),
want: map[string]interface{}{
// Ignored.
// "parent1": "alice",
},
},
"get parameters but one is ignored": {
provider: ProviderWithClient(Config[ssm.GetParametersInput]{
Delim: ".",
Input: ssm.GetParametersInput{Names: []string{"parent1", "parent2.child1"}},
Callback: func(key, value string) (string, interface{}) {
return strings.TrimPrefix(strings.TrimPrefix(key, "prefix."), "parent2.child1"), value
},
}, client),
want: map[string]interface{}{
"parent1": "alice",
// Ignored.
// "parent2": map[string]interface{}{
// "child1": "bob",
// },
},
},
"get parameters by path but ont is ignored": {
provider: ProviderWithClient(Config[ssm.GetParametersByPathInput]{
Delim: ".",
Input: ssm.GetParametersByPathInput{Path: aws.String("/")},
Callback: func(key, value string) (string, interface{}) {
return strings.TrimPrefix(strings.TrimPrefix(key, "prefix."), "parent2.child2.grandchild1"), value
},
}, client),
want: map[string]interface{}{
"parent1": "alice",
"parent2": map[string]interface{}{
"child1": "bob",
// Ignored.
// "child2": map[string]interface{}{
// "grandchild1": "carol",
// },
},
},
},
}
for name, test := range tests {
test := test
t.Run(name, func(t *testing.T) {
got, err := test.provider.Read()
assert.NoError(t, err)
assert.Equal(t, test.want, got)
})
}
}
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