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baskets_test.go
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baskets_test.go
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package main
import (
"net/http"
"net/http/httptest"
"testing"
"github.com/stretchr/testify/assert"
)
func TestRequestData_Forward(t *testing.T) {
basket := "demo"
// Test request
data := new(RequestData)
data.Header = make(http.Header)
data.Header.Add("Content-Type", "application/json")
data.Header.Add("User-Agent", "Unit-Test")
data.Header.Add("Accept", "plain/text")
data.Method = "POST"
data.Body = "{ \"name\" : \"test\", \"action\" : \"add\" }"
data.ContentLength = int64(len(data.Body))
// path contains basket name
data.Path = "/" + basket + "/service/actions"
data.Query = "id=15&max=10"
// Test HTTP server
var forwardedData *RequestData
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
forwardedData = ToRequestData(r)
w.WriteHeader(http.StatusOK)
}))
defer ts.Close()
// Config to forward requests to test HTTP server
config := BasketConfig{ForwardURL: ts.URL, ExpandPath: false, Capacity: 20}
data.Forward(new(http.Client), config, basket)
// Validate forwarded request
assert.Equal(t, data.Method, forwardedData.Method, "wrong request method")
// path is not expanded during forward
assert.Equal(t, "/", forwardedData.Path, "wrong request path")
assert.Equal(t, data.Query, forwardedData.Query, "wrong request query")
assert.Equal(t, data.ContentLength, forwardedData.ContentLength, "wrong content length")
assert.Equal(t, data.Body, forwardedData.Body, "wrong request body")
// expect all original headers to present in forwarded request (additional headers might be added)
for k, v := range data.Header {
fv := forwardedData.Header[k]
if assert.NotNil(t, fv, "missing expected header: %v = %v", k, v) {
assert.Equal(t, v, fv, "wrong value of request header: %v", k)
}
}
}
func TestRequestData_Forward_ComplexForwardURL(t *testing.T) {
basket := "zooapi"
pathSuffix := "/rooms/1/pets/12"
// Test request
data := new(RequestData)
data.Header = make(http.Header)
data.Header.Add("Content-Type", "application/json")
data.Header.Add("User-Agent", "Unit-Test")
data.Method = "PUT"
data.Body = "{ \"id\" : \"12\", \"kind\" : \"elephant\", \"name\" : \"Bibi\" }"
data.ContentLength = int64(len(data.Body))
// path contains basket name
data.Path = "/" + basket + pathSuffix
data.Query = "expose=true&pattern=*"
// Test HTTP server
var forwardedData *RequestData
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
forwardedData = ToRequestData(r)
w.WriteHeader(http.StatusOK)
}))
defer ts.Close()
// Config to forward requests to test HTTP server (also enable expanding URL)
forwardURL := ts.URL + "/captures?from=" + basket
config := BasketConfig{ForwardURL: forwardURL, ExpandPath: true, Capacity: 20}
data.Forward(new(http.Client), config, basket)
// Validate forwarded path
assert.Equal(t, "/captures"+pathSuffix, forwardedData.Path, "wrong request path")
assert.Equal(t, "from="+basket+"&"+data.Query, forwardedData.Query, "wrong request query")
}
func TestRequestData_Forward_BrokenURL(t *testing.T) {
basket := "test"
// Test request
data := new(RequestData)
data.Header = make(http.Header)
data.Header.Add("Content-Type", "application/json")
data.Method = "GET"
data.Body = "{ \"name\" : \"test\", \"action\" : \"add\" }"
data.ContentLength = int64(len(data.Body))
// path contains basket name
data.Path = "/" + basket
// Config to forward requests to broken URL
config := BasketConfig{ForwardURL: "abc", ExpandPath: false, Capacity: 20}
// Should not fail, warning in log is expected
r, e := data.Forward(new(http.Client), config, basket)
assert.Nil(t, r, "response is not expected")
assert.NotNil(t, e, "error is expected")
assert.Contains(t, e.Error(), "invalid forward URL: abc - parse", "unexpected error message")
assert.Contains(t, e.Error(), "invalid URI for request", "unexpected error message")
}
func TestRequestData_Forward_UnreachableURL(t *testing.T) {
basket := "test"
// Test request
data := new(RequestData)
data.Header = make(http.Header)
data.Header.Add("Content-Type", "application/json")
data.Method = "GET"
data.Body = "{ \"name\" : \"test\", \"action\" : \"add\" }"
data.ContentLength = int64(len(data.Body))
// path contains basket name
data.Path = "/" + basket
// Config to forward requests to unreachable URL
config := BasketConfig{ForwardURL: "http://localhost:81/should/fail/to/forward", ExpandPath: false, Capacity: 20}
// Should not fail, warning in log is expected
r, e := data.Forward(new(http.Client), config, basket)
assert.Nil(t, e, "error is not expected")
assert.NotNil(t, r, "response is expected")
assert.Equal(t, 502, r.StatusCode, "wrong status code")
}
func TestExpandURL(t *testing.T) {
assert.Equal(t, "/notify/abc/123-123", expandURL("/notify", "/sniffer/abc/123-123", "sniffer"))
assert.Equal(t, "/hello/world", expandURL("/", "/mybasket/hello/world", "mybasket"))
assert.Equal(t, "/notify/hello/world", expandURL("/notify", "/notify/hello/world", "notify"))
assert.Equal(t, "/receive/notification/test/", expandURL("/receive/notification/", "/basket/test/", "basket"))
}
func TestDatabaseStats_Collect(t *testing.T) {
stats := new(DatabaseStats)
stats.Collect(&BasketInfo{"a", 5, 10, 100}, 3)
stats.Collect(&BasketInfo{"b", 5, 30, 200}, 3)
stats.Collect(&BasketInfo{"c", 5, 5, 300}, 3)
stats.Collect(&BasketInfo{"d", 0, 0, 400}, 3)
stats.Collect(&BasketInfo{"e", 5, 20, 500}, 3)
stats.Collect(&BasketInfo{"f", 10, 40, 600}, 3)
stats.Collect(&BasketInfo{"g", 0, 0, 700}, 3)
stats.Collect(&BasketInfo{"h", 5, 5, 800}, 3)
assert.Equal(t, 8, stats.BasketsCount, "wrong BasketsCount")
assert.Equal(t, 2, stats.EmptyBasketsCount, "wrong EmptyBasketsCount")
assert.Equal(t, 40, stats.MaxBasketSize, "wrong MaxBasketSize")
assert.Equal(t, 35, stats.RequestsCount, "wrong RequestsCount")
assert.Equal(t, 110, stats.RequestsTotalCount, "wrong RequestsTotalCount")
assert.Equal(t, 3, len(stats.TopBasketsByDate), "wrong number of TopBasketsByDate")
assert.Equal(t, "h", stats.TopBasketsByDate[0].Name)
assert.Equal(t, "g", stats.TopBasketsByDate[1].Name)
assert.Equal(t, "f", stats.TopBasketsByDate[2].Name)
assert.Equal(t, 3, len(stats.TopBasketsBySize), "wrong number of TopBasketsBySize")
assert.Equal(t, "f", stats.TopBasketsBySize[0].Name)
assert.Equal(t, "b", stats.TopBasketsBySize[1].Name)
assert.Equal(t, "e", stats.TopBasketsBySize[2].Name)
// we do not expect avarage basket size, it is not updated automatically
assert.Equal(t, 0, stats.AvgBasketSize, "unexpected AvgBasketSize")
}
func TestDatabaseStats_UpdateAvarage(t *testing.T) {
stats := new(DatabaseStats)
stats.Collect(&BasketInfo{"a", 5, 10, 100}, 3)
stats.Collect(&BasketInfo{"b", 5, 20, 200}, 3)
stats.Collect(&BasketInfo{"c", 5, 30, 300}, 3)
stats.UpdateAvarage()
assert.Equal(t, 20, stats.AvgBasketSize, "wrong AvgBasketSize")
}
func TestDatabaseStats_UpdateAvarage_Empty(t *testing.T) {
stats := new(DatabaseStats)
stats.UpdateAvarage()
assert.Equal(t, 0, stats.AvgBasketSize, "wrong AvgBasketSize")
}