rescribe: move getBookIdFromUrl() to gbook.go, and add tests for it

1 files changed, 31 insertions, 0 deletions

diff --git a/cmd/rescribe/gbook_test.go b/cmd/rescribe/gbook_test.go
new file mode 100644
index 0000000..6cd5a63
--- /dev/null
+++ b/cmd/rescribe/gbook_test.go
@@ -0,0 +1,31 @@
+// Copyright 2022 Nick White.
+// Use of this source code is governed by the GPLv3
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"testing"
+)
+
+func Test_getBookIdFromUrl(t *testing.T) {
+	cases := []struct {
+		url string
+		id string
+	}{
+		{"https://books.google.it/books?id=QjQepCuN8JYC", "QjQepCuN8JYC"},
+		{"https://www.google.it/books/edition/_/VJbr-Oe2au0C", "VJbr-Oe2au0C"},
+	}
+
+	for _, c := range cases {
+		t.Run(c.url, func(t *testing.T) {
+			id, err := getBookIdFromUrl(c.url)
+			if err != nil {
+				t.Fatalf("Error running test: %v", err)
+			}
+			if id != c.id {
+				t.Fatalf("Expected %s, got %s", c.id, id)
+			}
+		})
+	}
+}