[gnote] Add file_write_all_text

[Aurimas Černius <aurimasc src gnome org>]

commit 49b97d4a4739695314bd8ae636d8f58aea0070a3
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Thu Feb 16 12:50:02 2017 +0200

    Add file_write_all_text

 src/sharp/files.cpp           |   13 +++++++++++++
 src/sharp/files.hpp           |    1 +
 src/test/unit/filesutests.cpp |   22 ++++++++++++++++++++++
 3 files changed, 36 insertions(+), 0 deletions(-)
---
diff --git a/src/sharp/files.cpp b/src/sharp/files.cpp
index ec3500c..f716ba4 100644
--- a/src/sharp/files.cpp
+++ b/src/sharp/files.cpp
@@ -115,5 +115,18 @@ namespace sharp {
 
     return text;
   }
+
+  void file_write_all_text(const Glib::ustring & path, const Glib::ustring & content)
+  {
+    std::ofstream fout(path);
+    if(!fout.is_open()) {
+      throw sharp::Exception("Failed to open file: " + path);
+    }
+    fout << content;
+    if(!fout.good()) {
+      throw sharp::Exception("Failed to write to file");
+    }
+    fout.close();
+  }
 }
 
diff --git a/src/sharp/files.hpp b/src/sharp/files.hpp
index 00d416c..32822ce 100644
--- a/src/sharp/files.hpp
+++ b/src/sharp/files.hpp
@@ -45,6 +45,7 @@ namespace sharp {
 
   std::vector<Glib::ustring> file_read_all_lines(const Glib::ustring & path);
   Glib::ustring file_read_all_text(const Glib::ustring & path);
+  void file_write_all_text(const Glib::ustring & path, const Glib::ustring & content);
 }
 
 
diff --git a/src/test/unit/filesutests.cpp b/src/test/unit/filesutests.cpp
index 8ec25eb..80ab3da 100644
--- a/src/test/unit/filesutests.cpp
+++ b/src/test/unit/filesutests.cpp
@@ -108,5 +108,27 @@ SUITE(files)
     file_content = sharp::file_read_all_text(temp_file_name);
     CHECK_EQUAL("line1\nline2\nline3", file_content);
   }
+
+  TEST(write_all_text)
+  {
+    Glib::ustring file_content = "line1\nline2\nline3";
+    char temp_file_name[] = "/tmp/gnotetestXXXXXX";
+    int fd = mkstemp(temp_file_name);
+    close(fd);
+
+    sharp::file_write_all_text(temp_file_name, file_content);
+    std::ifstream fin(temp_file_name);
+    std::string line1, line2, line3;
+    std::getline(fin, line1);
+    std::getline(fin, line2);
+    std::getline(fin, line3);
+    fin.close();
+
+    CHECK_EQUAL("line1", line1);
+    CHECK_EQUAL("line2", line2);
+    CHECK_EQUAL("line3", line3);
+
+    CHECK_THROW(sharp::file_write_all_text("/usr/gnotetest", file_content), sharp::Exception);
+  }
 }