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offer_request_test.go
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offer_request_test.go
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package horizonclient
import (
"context"
"fmt"
"testing"
"time"
hProtocol "github.com/stellar/go/protocols/horizon"
"github.com/stellar/go/support/http/httptest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestOfferRequestBuildUrl(t *testing.T) {
er := OfferRequest{ForAccount: "GCLWGQPMKXQSPF776IU33AH4PZNOOWNAWGGKVTBQMIC5IMKUNP3E6NVU"}
endpoint, err := er.BuildURL()
// It should return valid offers endpoint and no errors
require.NoError(t, err)
assert.Equal(t, "accounts/GCLWGQPMKXQSPF776IU33AH4PZNOOWNAWGGKVTBQMIC5IMKUNP3E6NVU/offers", endpoint)
er = OfferRequest{ForAccount: "GCLWGQPMKXQSPF776IU33AH4PZNOOWNAWGGKVTBQMIC5IMKUNP3E6NVU", Cursor: "now", Order: OrderDesc}
endpoint, err = er.BuildURL()
// It should return valid offers endpoint and no errors
require.NoError(t, err)
assert.Equal(t, "accounts/GCLWGQPMKXQSPF776IU33AH4PZNOOWNAWGGKVTBQMIC5IMKUNP3E6NVU/offers?cursor=now&order=desc", endpoint)
}
func ExampleClient_StreamOffers() {
client := DefaultTestNetClient
// offers for account
offerRequest := OfferRequest{ForAccount: "GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C", Cursor: "1"}
ctx, cancel := context.WithCancel(context.Background())
go func() {
// Stop streaming after 60 seconds.
time.Sleep(60 * time.Second)
cancel()
}()
printHandler := func(offer hProtocol.Offer) {
fmt.Println(offer)
}
err := client.StreamOffers(ctx, offerRequest, printHandler)
if err != nil {
fmt.Println(err)
}
}
func ExampleClient_NextOffersPage() {
client := DefaultPublicNetClient
// all offers
offerRequest := OfferRequest{ForAccount: "GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C", Limit: 20}
offers, err := client.Offers(offerRequest)
if err != nil {
fmt.Println(err)
return
}
fmt.Print(offers)
// get next pages.
recordsFound := false
if len(offers.Embedded.Records) > 0 {
recordsFound = true
}
page := offers
// get the next page of records if recordsFound is true
for recordsFound {
// next page
nextPage, err := client.NextOffersPage(page)
if err != nil {
fmt.Println(err)
return
}
page = nextPage
if len(nextPage.Embedded.Records) == 0 {
recordsFound = false
}
fmt.Println(nextPage)
}
}
func ExampleClient_PrevOffersPage() {
client := DefaultPublicNetClient
// all offers
offerRequest := OfferRequest{ForAccount: "GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C", Limit: 20}
offers, err := client.Offers(offerRequest)
if err != nil {
fmt.Println(err)
return
}
fmt.Print(offers)
// get prev pages.
recordsFound := false
if len(offers.Embedded.Records) > 0 {
recordsFound = true
}
page := offers
// get the prev page of records if recordsFound is true
for recordsFound {
// prev page
prevPage, err := client.PrevOffersPage(page)
if err != nil {
fmt.Println(err)
return
}
page = prevPage
if len(prevPage.Embedded.Records) == 0 {
recordsFound = false
}
fmt.Println(prevPage)
}
}
func TestNextOffersPage(t *testing.T) {
hmock := httptest.NewClient()
client := &Client{
HorizonURL: "https://localhost/",
HTTP: hmock,
}
offerRequest := OfferRequest{ForAccount: "GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG", Limit: 2}
hmock.On(
"GET",
"https://localhost/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG/offers?limit=2",
).ReturnString(200, firstOffersPage)
offers, err := client.Offers(offerRequest)
if assert.NoError(t, err) {
assert.Equal(t, len(offers.Embedded.Records), 2)
}
hmock.On(
"GET",
"https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG/offers?cursor=2946581&limit=2&order=asc",
).ReturnString(200, emptyOffersPage)
nextPage, err := client.NextOffersPage(offers)
if assert.NoError(t, err) {
assert.Equal(t, len(nextPage.Embedded.Records), 0)
}
}
func TestOfferRequestStreamOffers(t *testing.T) {
hmock := httptest.NewClient()
client := &Client{
HorizonURL: "https://localhost/",
HTTP: hmock,
}
// offers for account
orRequest := OfferRequest{ForAccount: "GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C"}
ctx, cancel := context.WithCancel(context.Background())
hmock.On(
"GET",
"https://localhost/accounts/GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C/offers?cursor=now",
).ReturnString(200, offerStreamResponse)
offers := make([]hProtocol.Offer, 1)
err := client.StreamOffers(ctx, orRequest, func(offer hProtocol.Offer) {
offers[0] = offer
cancel()
})
if assert.NoError(t, err) {
assert.Equal(t, offers[0].Amount, "20.4266087")
assert.Equal(t, offers[0].Seller, "GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C")
}
// test error
orRequest = OfferRequest{ForAccount: "GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C"}
ctx, cancel = context.WithCancel(context.Background())
hmock.On(
"GET",
"https://localhost/accounts/GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C/offers?cursor=now",
).ReturnString(500, offerStreamResponse)
offers = make([]hProtocol.Offer, 1)
err = client.StreamOffers(ctx, orRequest, func(offer hProtocol.Offer) {
cancel()
})
if assert.Error(t, err) {
assert.Contains(t, err.Error(), "got bad HTTP status code 500")
}
}
var offerStreamResponse = `data: {"_links":{"self":{"href":"https://horizon-testnet.stellar.org/offers/5269100"},"offer_maker":{"href":"https://horizon-testnet.stellar.org/accounts/GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C"}},"id":5269100,"paging_token":"5269100","seller":"GAQHWQYBBW272OOXNQMMLCA5WY2XAZPODGB7Q3S5OKKIXVESKO55ZQ7C","selling":{"asset_type":"credit_alphanum4","asset_code":"DSQ","asset_issuer":"GBDQPTQJDATT7Z7EO4COS4IMYXH44RDLLI6N6WIL5BZABGMUOVMLWMQF"},"buying":{"asset_type":"credit_alphanum4","asset_code":"XCS6","asset_issuer":"GBH2V47NOZRC56QAYCPV5JUBG5NVFJQF5AQTUNFNWNDHSWWTKH2MWR2L"},"amount":"20.4266087","price_r":{"n":24819,"d":10000000},"price":"0.0024819","last_modified_ledger":674449,"last_modified_time":"2019-04-08T11:56:41Z"}
`
var firstOffersPage = `{
"_links": {
"self": {
"href": "https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG/offers?cursor=&limit=2&order=asc"
},
"next": {
"href": "https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG/offers?cursor=2946581&limit=2&order=asc"
},
"prev": {
"href": "https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG/offers?cursor=2946580&limit=2&order=desc"
}
},
"_embedded": {
"records": [
{
"_links": {
"self": {
"href": "https://horizon-testnet.stellar.org/offers/2946580"
},
"offer_maker": {
"href": "https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG"
}
},
"id": 2946580,
"paging_token": "2946580",
"seller": "GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG",
"selling": {
"asset_type": "credit_alphanum4",
"asset_code": "HT",
"asset_issuer": "GCNSGHUCG5VMGLT5RIYYZSO7VQULQKAJ62QA33DBC5PPBSO57LFWVV6P"
},
"buying": {
"asset_type": "credit_alphanum4",
"asset_code": "BTC",
"asset_issuer": "GCNSGHUCG5VMGLT5RIYYZSO7VQULQKAJ62QA33DBC5PPBSO57LFWVV6P"
},
"amount": "33.7252478",
"price_r": {
"n": 15477,
"d": 43975000
},
"price": "0.0003519",
"last_modified_ledger": 363492,
"last_modified_time": "2019-05-16T08:35:22Z"
},
{
"_links": {
"self": {
"href": "https://horizon-testnet.stellar.org/offers/2946581"
},
"offer_maker": {
"href": "https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG"
}
},
"id": 2946581,
"paging_token": "2946581",
"seller": "GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG",
"selling": {
"asset_type": "credit_alphanum4",
"asset_code": "HT",
"asset_issuer": "GCNSGHUCG5VMGLT5RIYYZSO7VQULQKAJ62QA33DBC5PPBSO57LFWVV6P"
},
"buying": {
"asset_type": "credit_alphanum4",
"asset_code": "BTC",
"asset_issuer": "GCNSGHUCG5VMGLT5RIYYZSO7VQULQKAJ62QA33DBC5PPBSO57LFWVV6P"
},
"amount": "20.0242956",
"price_r": {
"n": 3157,
"d": 8795000
},
"price": "0.0003590",
"last_modified_ledger": 363492,
"last_modified_time": "2019-05-16T08:35:22Z"
}
]
}
}`
var emptyOffersPage = `{
"_links": {
"self": {
"href": "https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG/offers?cursor=2946581&limit=2&order=asc"
},
"next": {
"href": "https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG/offers?cursor=2946583&limit=2&order=asc"
},
"prev": {
"href": "https://horizon-testnet.stellar.org/accounts/GBZ5OD56VRTRQKMNADD6VUZUG3FCILMAMYQY5ZSC3AW3GBXNEPIK76IG/offers?cursor=2946582&limit=2&order=desc"
}
},
"_embedded": {
"records": []
}
}`