public void BasicGetSetEnvironmentVariable(string prefix)
{
string name = prefix + System.IO.Path.GetRandomFileName();
ProcessMethods.SetEnvironmentVariable(name, "BasicGetSetEnvironmentVariable");
ProcessMethods.GetEnvironmentVariable(name).Should().Be("BasicGetSetEnvironmentVariable");
ProcessMethods.SetEnvironmentVariable(name, null);
ProcessMethods.GetEnvironmentVariable(name).Should().BeNull();
}
unsafe static LRESULT WindowProcedure(WindowHandle window, WindowMessage message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WindowMessage.Create:
SIZE baseUnits = Windows.GetDialogBaseUnits();
// Create listbox and static text windows.
hwndList = Windows.CreateWindow("listbox", null,
WindowStyles.Child | WindowStyles.Visible | (WindowStyles)ListBoxStyles.Standard, ExtendedWindowStyles.None,
baseUnits.cx, baseUnits.cy * 3, baseUnits.cx * 64 + Windows.GetSystemMetrics(SystemMetric.CXVSCROLL), baseUnits.cy * 20,
window, (IntPtr)ID_LIST, ((CREATESTRUCT *)lParam)->hInstance, IntPtr.Zero);
hwndText = Windows.CreateWindow("static", null,
WindowStyles.Child | WindowStyles.Visible | (WindowStyles)StaticStyles.Left, ExtendedWindowStyles.None,
baseUnits.cx, baseUnits.cy, Windows.GetSystemMetrics(SystemMetric.CYSCREEN), baseUnits.cy,
window, (IntPtr)ID_TEXT, ((CREATESTRUCT *)lParam)->hInstance, IntPtr.Zero);
FillListBox(hwndList);
return(0);
case WindowMessage.SetFocus:
hwndList.SetFocus();
return(0);
case WindowMessage.Command:
if (wParam.LowWord == ID_LIST &&
(wParam.HighWord == (ushort)ListBoxNotification.SelectionChange))
{
// Get current selection.
uint iIndex = hwndList.SendMessage(ListBoxMessage.GetCurrentSelection, 0, 0);
int iLength = hwndList.SendMessage(ListBoxMessage.GetTextLength, iIndex, 0) + 1;
char *nameBuffer = stackalloc char[iLength];
int result = hwndList.SendMessage(ListBoxMessage.GetText, iIndex, nameBuffer);
// Get environment string.
string value = ProcessMethods.GetEnvironmentVariable(new string(nameBuffer, 0, result));
// Show it in window.
hwndText.SetWindowText(value);
}
return(0);
case WindowMessage.Destroy:
Windows.PostQuitMessage(0);
return(0);
}
return(Windows.DefaultWindowProcedure(window, message, wParam, lParam));
}
public void ListEnvironmentVariables_Basic(string prefix)
{
string name = prefix + System.IO.Path.GetRandomFileName();
ProcessMethods.SetEnvironmentVariable(name, "test");
ProcessMethods.GetEnvironmentVariable(name).Should().Be("test");
var variables = ProcessMethods.GetEnvironmentVariables();
variables.Should().ContainKey(name);
variables[name].Should().Be("test");
ProcessMethods.SetEnvironmentVariable(name, null);
ProcessMethods.GetEnvironmentVariable(name).Should().BeNull();
variables = ProcessMethods.GetEnvironmentVariables();
variables.Should().NotContainKey(name);
}
public void GetEnvironmentVariable_GetNullStringThrows()
{
Action action = () => ProcessMethods.GetEnvironmentVariable(null);
action.ShouldThrow <ArgumentNullException>();
}