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data_test.go
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data_test.go
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// Copyright 2013 Google LLC. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package imageproxy
import (
"net/http"
"net/url"
"testing"
)
var emptyOptions = Options{}
func TestOptions_String(t *testing.T) {
tests := []struct {
Options Options
String string
}{
{
emptyOptions,
"0x0",
},
{
Options{Width: 1, Height: 2, Fit: true, Rotate: 90, FlipVertical: true, FlipHorizontal: true, Quality: 80},
"1x2,fh,fit,fv,q80,r90",
},
{
Options{Width: 0.15, Height: 1.3, Rotate: 45, Quality: 95, Signature: "c0ffee", Format: "png"},
"0.15x1.3,png,q95,r45,sc0ffee",
},
{
Options{Width: 0.15, Height: 1.3, CropX: 100, CropY: 200},
"0.15x1.3,cx100,cy200",
},
{
Options{ScaleUp: true, CropX: 100, CropY: 200, CropWidth: 300, CropHeight: 400, SmartCrop: true},
"0x0,ch400,cw300,cx100,cy200,sc,scaleUp",
},
}
for i, tt := range tests {
if got, want := tt.Options.String(), tt.String; got != want {
t.Errorf("%d. Options.String returned %v, want %v", i, got, want)
}
}
}
func TestParseOptions(t *testing.T) {
tests := []struct {
Input string
Options Options
}{
{"", emptyOptions},
{"x", emptyOptions},
{"r", emptyOptions},
{"0", emptyOptions},
{",,,,", emptyOptions},
// size variations
{"1x", Options{Width: 1}},
{"x1", Options{Height: 1}},
{"1x2", Options{Width: 1, Height: 2}},
{"-1x-2", Options{Width: -1, Height: -2}},
{"0.1x0.2", Options{Width: 0.1, Height: 0.2}},
{"1", Options{Width: 1, Height: 1}},
{"0.1", Options{Width: 0.1, Height: 0.1}},
// additional flags
{"fit", Options{Fit: true}},
{"r90", Options{Rotate: 90}},
{"fv", Options{FlipVertical: true}},
{"fh", Options{FlipHorizontal: true}},
{"jpeg", Options{Format: "jpeg"}},
// duplicate flags (last one wins)
{"1x2,3x4", Options{Width: 3, Height: 4}},
{"1x2,3", Options{Width: 3, Height: 3}},
{"1x2,0x3", Options{Width: 0, Height: 3}},
{"1x,x2", Options{Width: 1, Height: 2}},
{"r90,r270", Options{Rotate: 270}},
{"jpeg,png", Options{Format: "png"}},
// mix of valid and invalid flags
{"FOO,1,BAR,r90,BAZ", Options{Width: 1, Height: 1, Rotate: 90}},
// flags, in different orders
{"q70,1x2,fit,r90,fv,fh,sc0ffee,png", Options{Width: 1, Height: 2, Fit: true, Rotate: 90, FlipVertical: true, FlipHorizontal: true, Quality: 70, Signature: "c0ffee", Format: "png"}},
{"r90,fh,sc0ffee,png,q90,1x2,fv,fit", Options{Width: 1, Height: 2, Fit: true, Rotate: 90, FlipVertical: true, FlipHorizontal: true, Quality: 90, Signature: "c0ffee", Format: "png"}},
{"cx100,cw300,1x2,cy200,ch400,sc,scaleUp", Options{Width: 1, Height: 2, ScaleUp: true, CropX: 100, CropY: 200, CropWidth: 300, CropHeight: 400, SmartCrop: true}},
}
for _, tt := range tests {
if got, want := ParseOptions(tt.Input), tt.Options; got != want {
t.Errorf("ParseOptions(%q) returned %#v, want %#v", tt.Input, got, want)
}
}
}
// Test that request URLs are properly parsed into Options and RemoteURL. This
// test verifies that invalid remote URLs throw errors, and that valid
// combinations of Options and URL are accept. This does not exhaustively test
// the various Options that can be specified; see TestParseOptions for that.
func TestNewRequest(t *testing.T) {
tests := []struct {
URL string // input URL to parse as an imageproxy request
RemoteURL string // expected URL of remote image parsed from input
Options Options // expected options parsed from input
ExpectError bool // whether an error is expected from NewRequest
}{
// invalid URLs
{"http://localhost/", "", emptyOptions, true},
{"http://localhost/1/", "", emptyOptions, true},
{"http://localhost//example.com/foo", "", emptyOptions, true},
{"http://localhost//ftp://example.com/foo", "", emptyOptions, true},
// invalid options. These won't return errors, but will not fully parse the options
{
"http://localhost/s/http://example.com/",
"http://example.com/", emptyOptions, false,
},
{
"http://localhost/1xs/http://example.com/",
"http://example.com/", Options{Width: 1}, false,
},
// valid URLs
{
"http://localhost/http://example.com/foo",
"http://example.com/foo", emptyOptions, false,
},
{
"http://localhost//http://example.com/foo",
"http://example.com/foo", emptyOptions, false,
},
{
"http://localhost//https://example.com/foo",
"https://example.com/foo", emptyOptions, false,
},
{
"http://localhost/1x2/http://example.com/foo",
"http://example.com/foo", Options{Width: 1, Height: 2}, false,
},
{
"http://localhost//http://example.com/foo?bar",
"http://example.com/foo?bar", emptyOptions, false,
},
{
"http://localhost/http:/example.com/foo",
"http://example.com/foo", emptyOptions, false,
},
{
"http://localhost/http:///example.com/foo",
"http://example.com/foo", emptyOptions, false,
},
{ // escaped path
"http://localhost/http://example.com/%2C",
"http://example.com/%2C", emptyOptions, false,
},
}
for _, tt := range tests {
req, err := http.NewRequest("GET", tt.URL, nil)
if err != nil {
t.Errorf("http.NewRequest(%q) returned error: %v", tt.URL, err)
continue
}
r, err := NewRequest(req, nil)
if tt.ExpectError {
if err == nil {
t.Errorf("NewRequest(%v) did not return expected error", req)
}
continue
} else if err != nil {
t.Errorf("NewRequest(%v) return unexpected error: %v", req, err)
continue
}
if got, want := r.URL.String(), tt.RemoteURL; got != want {
t.Errorf("NewRequest(%q) request URL = %v, want %v", tt.URL, got, want)
}
if got, want := r.Options, tt.Options; got != want {
t.Errorf("NewRequest(%q) request options = %v, want %v", tt.URL, got, want)
}
}
}
func TestNewRequest_BaseURL(t *testing.T) {
req, _ := http.NewRequest("GET", "/x/path", nil)
base, _ := url.Parse("https://example.com/")
r, err := NewRequest(req, base)
if err != nil {
t.Errorf("NewRequest(%v, %v) returned unexpected error: %v", req, base, err)
}
want := "https://example.com/path#0x0"
if got := r.String(); got != want {
t.Errorf("NewRequest(%v, %v) returned %q, want %q", req, base, got, want)
}
}