// Copyright 2016 Alexander Palaistras. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.
package farsight
import (
// Standard library.
"fmt"
"io"
"reflect"
"strings"
"testing"
// Internal packages.
"github.com/deuill/farsight/source"
)
type TestSource struct {
data map[string]TestCase
}
func (t *TestSource) Fetch(src string) (io.Reader, error) {
if _, exists := t.data[src]; !exists {
return nil, fmt.Errorf("Unknown source data requested")
}
return strings.NewReader(t.data[src].Content), nil
}
type TestCase struct {
Content string
Actual interface{}
Expected interface{}
}
// Test cases for `farsight.Fetch` function.
var fetchTests = map[string]TestCase{
"html://string": {
`Hello World
`,
&struct {
Text string `farsight:"#hello"`
}{},
&struct {
Text string `farsight:"#hello"`
}{
"Hello World",
},
},
"html://int": {
`42
`,
&struct {
Num int64 `farsight:"#numberwang"`
}{},
&struct {
Num int64 `farsight:"#numberwang"`
}{
42,
},
},
"html://float": {
`3.14159
`,
&struct {
Pi float64 `farsight:"#pi"`
}{},
&struct {
Pi float64 `farsight:"#pi"`
}{
3.14159,
},
},
"html://slice": {
``,
&struct {
List []string `farsight:"#g li"`
}{},
&struct {
List []string `farsight:"#g li"`
}{
[]string{"Hello", "World"},
},
},
"html://attr": {
``,
&struct {
Link string `farsight:"div a/href"`
}{},
&struct {
Link string `farsight:"div a/href"`
}{
"http://deuill.org",
},
},
"html://subdoc": {
`- EenieNope
- MeenieNope Either
`,
&struct {
Items []struct {
Text string `farsight:"i"`
} `farsight:"ul li"`
}{},
&struct {
Items []struct {
Text string `farsight:"i"`
} `farsight:"ul li"`
}{
[]struct {
Text string `farsight:"i"`
}{
{"Eenie"},
{"Meenie"},
},
},
},
}
func TestFetch(t *testing.T) {
// Register mock source.
source.Register("html", &TestSource{data: fetchTests})
// Execute tests sequentially.
for k, v := range fetchTests {
if err := Fetch(k, v.Actual, "html"); err != nil {
t.Errorf("Fetch failed for '%s': %s", k, err)
}
if reflect.DeepEqual(v.Actual, v.Expected) == false {
t.Errorf("Testing '%s' failed: expected '%v', actual '%v'\n", k, v.Expected, v.Actual)
}
}
}