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package data
import (
"encoding/json"
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"github.com/stretchr/testify/assert"
)
func must(r interface{}, err error) interface{} {
if err != nil {
panic(err)
}
return r
}
func setupHTTP(code int, mimetype string, body string) (*httptest.Server, *http.Client) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", mimetype)
w.WriteHeader(code)
if body == "" {
// mirror back the headers
fmt.Fprintln(w, must(marshalObj(r.Header, json.Marshal)))
} else {
fmt.Fprintln(w, body)
}
}))
client := &http.Client{
Transport: &http.Transport{
Proxy: func(req *http.Request) (*url.URL, error) {
return url.Parse(server.URL)
},
},
}
return server, client
}
func TestHTTPFile(t *testing.T) {
server, client := setupHTTP(200, "application/json; charset=utf-8", `{"hello": "world"}`)
defer server.Close()
sources := make(map[string]*Source)
sources["foo"] = &Source{
Alias: "foo",
URL: &url.URL{
Scheme: "http",
Host: "example.com",
Path: "/foo",
},
hc: client,
}
data := &Data{
Sources: sources,
}
expected := map[string]interface{}{
"hello": "world",
}
actual, err := data.Datasource("foo")
assert.NoError(t, err)
assert.Equal(t, must(marshalObj(expected, json.Marshal)), must(marshalObj(actual, json.Marshal)))
actual, err = data.Datasource(server.URL)
assert.NoError(t, err)
assert.Equal(t, must(marshalObj(expected, json.Marshal)), must(marshalObj(actual, json.Marshal)))
}
func TestHTTPFileWithHeaders(t *testing.T) {
server, client := setupHTTP(200, jsonMimetype, "")
defer server.Close()
sources := make(map[string]*Source)
sources["foo"] = &Source{
Alias: "foo",
URL: &url.URL{
Scheme: "http",
Host: "example.com",
Path: "/foo",
},
hc: client,
header: http.Header{
"Foo": {"bar"},
"foo": {"baz"},
"User-Agent": {},
"Accept-Encoding": {"test"},
},
}
data := &Data{
Sources: sources,
}
expected := http.Header{
"Accept-Encoding": {"test"},
"Foo": {"bar", "baz"},
}
actual, err := data.Datasource("foo")
assert.NoError(t, err)
assert.Equal(t, must(marshalObj(expected, json.Marshal)), must(marshalObj(actual, json.Marshal)))
expected = http.Header{
"Accept-Encoding": {"test"},
"Foo": {"bar", "baz"},
"User-Agent": {"Go-http-client/1.1"},
}
data = &Data{
Sources: sources,
extraHeaders: map[string]http.Header{server.URL: expected},
}
actual, err = data.Datasource(server.URL)
assert.NoError(t, err)
assert.Equal(t, must(marshalObj(expected, json.Marshal)), must(marshalObj(actual, json.Marshal)))
}
func TestBuildURL(t *testing.T) {
expected := "https://example.com/index.html"
base := mustParseURL(expected)
u, err := buildURL(base)
assert.NoError(t, err)
assert.Equal(t, expected, u.String())
expected = "https://example.com/index.html"
base = mustParseURL("https://example.com")
u, err = buildURL(base, "index.html")
assert.NoError(t, err)
assert.Equal(t, expected, u.String())
expected = "https://example.com/a/b/c/index.html"
base = mustParseURL("https://example.com/a/")
u, err = buildURL(base, "b/c/index.html")
assert.NoError(t, err)
assert.Equal(t, expected, u.String())
expected = "https://example.com/bar/baz/index.html"
base = mustParseURL("https://example.com/foo")
u, err = buildURL(base, "bar/baz/index.html")
assert.NoError(t, err)
assert.Equal(t, expected, u.String())
}
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