add books package (#568)

example/books/book_test.go

@@ -0,0 +1,42 @@
+package books_test
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/ginkgo/example/books"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Book", func() {
+	var (
+		longBook  Book
+		shortBook Book
+	)
+
+	BeforeEach(func() {
+		longBook = Book{
+			Title:  "Les Miserables",
+			Author: "Victor Hugo",
+			Pages:  1488,
+		}
+
+		shortBook = Book{
+			Title:  "Fox In Socks",
+			Author: "Dr. Seuss",
+			Pages:  24,
+		}
+	})
+
+	Describe("Categorizing book length", func() {
+		Context("With more than 300 pages", func() {
+			It("should be a novel", func() {
+				Expect(longBook.CategoryByLength()).To(Equal("NOVEL"))
+			})
+		})
+
+		Context("With fewer than 300 pages", func() {
+			It("should be a short story", func() {
+				Expect(shortBook.CategoryByLength()).To(Equal("SHORT STORY"))
+			})
+		})
+	})
+})

example/books/books.go

@@ -0,0 +1,16 @@
+package books
+
+type Book struct {
+	Title  string
+	Author string
+	Pages  int
+}
+
+func (b *Book) CategoryByLength() string {
+
+	if b.Pages >= 300 {
+		return "NOVEL"
+	}
+
+	return "SHORT STORY"
+}

example/books/books_suite_test.go

@@ -0,0 +1,13 @@
+package books_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestBooks(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Books Suite")
+}