SystemTools: add basic tests for SystemTools::FindFile()

Change-Id: I59c150ef46c87bea36bab2822ebd0643aa7b7c2b

testSystemTools.cxx

@@ -196,6 +196,14 @@ static bool CheckFileOperations()
       << std::endl;
     res = false;
     }
+  // check existence
+  if (!kwsys::SystemTools::FileExists(testNewDir.c_str(), false))
+    {
+    std::cerr
+      << "Problem with FileExists as C string and not file for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
   // remove it
   if (!kwsys::SystemTools::RemoveADirectory(testNewDir))
     {
@@ -204,6 +212,15 @@ static bool CheckFileOperations()
       << testNewDir << std::endl;
     res = false;
     }
+  // check existence
+  if (kwsys::SystemTools::FileExists(testNewDir.c_str(), false))
+    {
+    std::cerr
+      << "After RemoveADirectory: "
+      << "Problem with FileExists as C string and not file for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
   // create it using the char* version
   if (!kwsys::SystemTools::MakeDirectory(testNewDir.c_str()))
     {
@@ -229,6 +246,89 @@ static bool CheckFileOperations()
     res = false;
     }
 
+  // calling with 0 pointer should return false
+  if (kwsys::SystemTools::FileExists(0))
+    {
+    std::cerr
+      << "Problem with FileExists(0)"
+      << std::endl;
+    res = false;
+    }
+  if (kwsys::SystemTools::FileExists(0, true))
+    {
+    std::cerr
+      << "Problem with FileExists(0) as file"
+      << std::endl;
+    res = false;
+    }
+  // calling with an empty string should return false
+  if (kwsys::SystemTools::FileExists(std::string()))
+    {
+    std::cerr
+      << "Problem with FileExists(std::string())"
+      << std::endl;
+    res = false;
+    }
+  // FileExists(x, true) should return false on a directory
+  if (kwsys::SystemTools::FileExists(testNewDir, true))
+    {
+    std::cerr
+      << "Problem with FileExists as file for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
+  if (kwsys::SystemTools::FileExists(testNewDir.c_str(), true))
+    {
+    std::cerr
+      << "Problem with FileExists as C string and file for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
+  // FileExists(x, false) should return true even on a directory
+  if (!kwsys::SystemTools::FileExists(testNewDir, false))
+    {
+    std::cerr
+      << "Problem with FileExists as not file for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
+  if (!kwsys::SystemTools::FileExists(testNewDir.c_str(), false))
+    {
+    std::cerr
+      << "Problem with FileExists as C string and not file for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
+  // should work, was created as new file before
+  if (!kwsys::SystemTools::FileExists(testNewFile))
+    {
+    std::cerr
+      << "Problem with FileExists for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
+  if (!kwsys::SystemTools::FileExists(testNewFile.c_str()))
+    {
+    std::cerr
+      << "Problem with FileExists as C string for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
+  if (!kwsys::SystemTools::FileExists(testNewFile, true))
+    {
+    std::cerr
+      << "Problem with FileExists as file for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
+  if (!kwsys::SystemTools::FileExists(testNewFile.c_str(), true))
+    {
+    std::cerr
+      << "Problem with FileExists as C string and file for: "
+      << testNewDir << std::endl;
+    res = false;
+    }
+
   // Reset umask
 #if defined(_WIN32) && !defined(__CYGWIN__)
   // NOTE:  Windows doesn't support toggling _S_IREAD.
@@ -899,6 +999,44 @@ static bool CheckGetPath()
   return res;
 }
 
+static bool CheckFind()
+{
+  bool res = true;
+  const std::string testFindFileName("testFindFile.txt");
+  const std::string testFindFile(TEST_SYSTEMTOOLS_BINARY_DIR "/"
+                                 + testFindFileName);
+
+  if (!kwsys::SystemTools::Touch(testFindFile.c_str(), true))
+    {
+    std::cerr
+      << "Problem with Touch for: "
+      << testFindFile << std::endl;
+    // abort here as the existence of the file only makes the test meaningful
+    return false;
+    }
+
+  std::vector<std::string> searchPaths;
+  searchPaths.push_back(TEST_SYSTEMTOOLS_BINARY_DIR);
+  if (kwsys::SystemTools::FindFile(testFindFileName,
+                                    searchPaths, true).empty())
+    {
+    std::cerr
+      << "Problem with FindFile without system paths for: "
+      << testFindFileName << std::endl;
+    res = false;
+    }
+  if (kwsys::SystemTools::FindFile(testFindFileName,
+                                    searchPaths, false).empty())
+    {
+    std::cerr
+      << "Problem with FindFile with system paths for: "
+      << testFindFileName << std::endl;
+    res = false;
+    }
+
+  return res;
+}
+
 //----------------------------------------------------------------------------
 int testSystemTools(int, char*[])
 {
@@ -936,5 +1074,7 @@ int testSystemTools(int, char*[])
 
   res &= CheckGetPath();
 
+  res &= CheckFind();
+
   return res ? 0 : 1;
 }