76 lines
1.3 KiB
Go
76 lines
1.3 KiB
Go
package blogposts
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import (
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"reflect"
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"testing"
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"testing/fstest"
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)
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// NOTE: This should be a black box test outside blogposts package.
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// NOTE: If we want to test the return error
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//
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// type StubFailingFS struct{}
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//
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// func (s StubFailingFS) Open(name string) (fs.File, error) {
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// return nil, errors.New("fail")
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// }
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func TestNewBlogPosts(t *testing.T) {
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const (
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firstBody = `Title: Post 1
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Description: Description 1
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Tags: tdd, go
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---
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Hello
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World`
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secondBody = `Title: Post 2
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Description: Description 2
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Tags: rust, borrow-checker
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---
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B
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L
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M`
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)
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fs := fstest.MapFS{
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"hello world.md": {Data: []byte(firstBody)},
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"hello-world2.md": {Data: []byte(secondBody)},
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}
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posts, err := NewPostsFromFS(fs)
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if err != nil {
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t.Fatal(err)
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}
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if len(posts) != len(fs) {
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t.Errorf("got %d posts, wanted %d posts", len(posts), len(fs))
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}
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assertPost(t, posts[0], Post{
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Title: "Post 1",
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Description: "Description 1",
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Tags: []string{"tdd", "go"},
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Body: `Hello
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World`,
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})
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}
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func TestWrongFile(t *testing.T) {
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fs := fstest.MapFS{
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"hello world.txt": {Data: []byte("Yolo")},
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}
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_, err := NewPostsFromFS(fs)
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if err == nil {
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t.Errorf("should be an error but not")
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}
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}
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func assertPost(t testing.TB, got Post, want Post) {
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t.Helper()
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if !reflect.DeepEqual(got, want) {
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t.Errorf("got %+v, want %+v", got, want)
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}
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}
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