update book even if the members aren't empty

remove the conditions to always update the book

src/book.cpp

@@ -45,28 +45,14 @@ bool Book::update(const kiwix::Book& other)
     return false;
 
   m_readOnly = other.m_readOnly;
+  m_path = other.m_path;
+  m_pathValid = other.m_pathValid;
+  m_url = other.m_url;
+  m_tags = other.m_tags;
+  m_name = other.m_name;
+  m_favicon = other.m_favicon;
+  m_faviconMimeType = other.m_faviconMimeType;
 
-  if (m_path.empty()) {
-    m_path = other.m_path;
-    m_pathValid = other.m_pathValid;
-  }
-
-  if (m_url.empty()) {
-    m_url = other.m_url;
-  }
-
-  if (m_tags.empty()) {
-    m_tags = other.m_tags;
-  }
-
-  if (m_name.empty()) {
-    m_name = other.m_name;
-  }
-
-  if (m_faviconMimeType.empty()) {
-    m_favicon = other.m_favicon;
-    m_faviconMimeType = other.m_faviconMimeType;
-  }
   return true;
 }
 

test/book.cpp

@@ -0,0 +1,33 @@
+#include "gtest/gtest.h"
+#include "../include/book.h"
+
+TEST(BookTest, updateTest)
+{
+    kiwix::Book book;
+
+    book.setReadOnly(false);
+    book.setPath("/home/user/Downloads/skin-of-color-society_en_all_2019-11.zim");
+    book.setPathValid(true);
+    book.setUrl("book-url");
+    book.setTags("youtube;_videos:yes;_ftindex:yes;_ftindex:yes;_pictures:yes;_details:yes");
+    book.setName("skin-of-color-society_en_all");
+    book.setFavicon("book-favicon");
+    book.setFaviconMimeType("book-favicon-mimetype");
+
+    kiwix::Book newBook;
+
+    newBook.setReadOnly(true);
+    EXPECT_FALSE(newBook.update(book));
+
+    newBook.setReadOnly(false);
+    EXPECT_TRUE(newBook.update(book));
+
+    EXPECT_EQ(newBook.readOnly(), book.readOnly());
+    EXPECT_EQ(newBook.getPath(), book.getPath());
+    EXPECT_EQ(newBook.isPathValid(), book.isPathValid());
+    EXPECT_EQ(newBook.getUrl(), book.getUrl());
+    EXPECT_EQ(newBook.getTags(), book.getTags());
+    EXPECT_EQ(newBook.getName(), book.getName());
+    EXPECT_EQ(newBook.getFavicon(), book.getFavicon());
+    EXPECT_EQ(newBook.getFaviconMimeType(), book.getFaviconMimeType());
+}

test/meson.build

@@ -7,7 +7,8 @@ tests = [
     'tagParsing',
     'stringTools',
     'pathTools',
-    'kiwixserve'
+    'kiwixserve',
+    'book'
 ]