diff --git a/test/library/gui/dialogs.lua b/test/library/gui/dialogs.lua
index 47448da59..b89c861a0 100644
--- a/test/library/gui/dialogs.lua
+++ b/test/library/gui/dialogs.lua
@@ -10,163 +10,163 @@ end
 
 local xtest = {} -- use to temporarily disable tests (change `function test.somename` to `function xtest.somename`)
 local wait = function()
-	--delay(30) -- enable for debugging the tests
+    --delay(30) -- enable for debugging the tests
 end
 
 local dialogs = require('gui.dialogs')
 
 function test.ListBox_opens_and_closes()
-	local before_scr = dfhack.gui.getCurViewscreen(true)
-	local choices = {{
-		text = 'ListBox_opens_and_closes'
-	}}
-	local lb = dialogs.ListBox({choices = choices})
-	expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "creating a ListBox object should not change CurViewscreen")
-	lb:show()
-	wait()
-	expect.ne(before_scr, dfhack.gui.getCurViewscreen(true), "ListBox:show should change CurViewscreen")
-	send_keys('LEAVESCREEN')
-	expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "Pressing LEAVESCREEN should return us to previous screen")
+    local before_scr = dfhack.gui.getCurViewscreen(true)
+    local choices = {{
+        text = 'ListBox_opens_and_closes'
+    }}
+    local lb = dialogs.ListBox({choices = choices})
+    expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "creating a ListBox object should not change CurViewscreen")
+    lb:show()
+    wait()
+    expect.ne(before_scr, dfhack.gui.getCurViewscreen(true), "ListBox:show should change CurViewscreen")
+    send_keys('LEAVESCREEN')
+    expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "Pressing LEAVESCREEN should return us to previous screen")
 end
 
 function test.ListBox_closes_on_select()
-	local before_scr = dfhack.gui.getCurViewscreen(true)
-
-	local args = {}
-	local mock_cb = mock.func()
-	local mock_cb2 = mock.func()
-	args.on_select = mock_cb
-	args.on_select2 = mock_cb2
-	args.choices = {{
-		text = 'ListBox_closes_on_select'
-	}}
-
-	local lb = dialogs.ListBox(args)
-	lb:show()
-	wait()
-	send_keys('SELECT')
-
-	expect.eq(1, mock_cb.call_count)
-	expect.eq(0, mock_cb2.call_count)
-
-	expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "Selecting an item should return us to previous screen")
+    local before_scr = dfhack.gui.getCurViewscreen(true)
+
+    local args = {}
+    local mock_cb = mock.func()
+    local mock_cb2 = mock.func()
+    args.on_select = mock_cb
+    args.on_select2 = mock_cb2
+    args.choices = {{
+        text = 'ListBox_closes_on_select'
+    }}
+
+    local lb = dialogs.ListBox(args)
+    lb:show()
+    wait()
+    send_keys('SELECT')
+
+    expect.eq(1, mock_cb.call_count)
+    expect.eq(0, mock_cb2.call_count)
+
+    expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "Selecting an item should return us to previous screen")
 end
 
 function test.ListBox_closes_on_select2()
-	local before_scr = dfhack.gui.getCurViewscreen(true)
-
-	local args = {}
-	local mock_cb = mock.func()
-	local mock_cb2 = mock.func()
-	args.on_select = mock_cb
-	args.on_select2 = mock_cb2
-	args.choices = {{
-		text = 'ListBox_closes_on_select2'
-	}}
-
-	local lb = dialogs.ListBox(args)
-	lb:show()
-	wait()
-	send_keys('SEC_SELECT')
-	
-	expect.eq(0, mock_cb.call_count)
-	expect.eq(1, mock_cb2.call_count)
-
-	expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "Selecting an item should return us to previous screen")
+    local before_scr = dfhack.gui.getCurViewscreen(true)
+
+    local args = {}
+    local mock_cb = mock.func()
+    local mock_cb2 = mock.func()
+    args.on_select = mock_cb
+    args.on_select2 = mock_cb2
+    args.choices = {{
+        text = 'ListBox_closes_on_select2'
+    }}
+
+    local lb = dialogs.ListBox(args)
+    lb:show()
+    wait()
+    send_keys('SEC_SELECT')
+    
+    expect.eq(0, mock_cb.call_count)
+    expect.eq(1, mock_cb2.call_count)
+
+    expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "Selecting an item should return us to previous screen")
 end
 
 function test.ListBox_stays_open_with_multi_select()
-	local before_scr = dfhack.gui.getCurViewscreen(true)
-
-	local args = {}
-	local mock_cb = mock.func()
-	local mock_cb2 = mock.func()
-	args.on_select = mock_cb
-	args.on_select2 = mock_cb2
-	args.dismiss_on_select = false
-	args.choices = {{
-		text = 'ListBox_stays_open_with_multi_select'
-	}}
-
-	local lb = dialogs.ListBox(args)
-	lb:show()
-	local lb_scr = dfhack.gui.getCurViewscreen(true)
-	wait()
-	send_keys('SELECT')
-
-	expect.eq(lb_scr, dfhack.gui.getCurViewscreen(true), "Selecting an item should NOT close the ListBox")
-
-	send_keys('SEC_SELECT')
-	expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "With default dismiss_on_select2 it should return us to previous screen")
-	
-	expect.eq(1, mock_cb.call_count)
-	expect.eq(1, mock_cb2.call_count)
+    local before_scr = dfhack.gui.getCurViewscreen(true)
+
+    local args = {}
+    local mock_cb = mock.func()
+    local mock_cb2 = mock.func()
+    args.on_select = mock_cb
+    args.on_select2 = mock_cb2
+    args.dismiss_on_select = false
+    args.choices = {{
+        text = 'ListBox_stays_open_with_multi_select'
+    }}
+
+    local lb = dialogs.ListBox(args)
+    lb:show()
+    local lb_scr = dfhack.gui.getCurViewscreen(true)
+    wait()
+    send_keys('SELECT')
+
+    expect.eq(lb_scr, dfhack.gui.getCurViewscreen(true), "Selecting an item should NOT close the ListBox")
+
+    send_keys('SEC_SELECT')
+    expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "With default dismiss_on_select2 it should return us to previous screen")
+    
+    expect.eq(1, mock_cb.call_count)
+    expect.eq(1, mock_cb2.call_count)
 end
 
 function test.ListBox_stays_open_with_multi_select2()
-	local before_scr = dfhack.gui.getCurViewscreen(true)
-
-	local args = {}
-	local mock_cb = mock.func()
-	local mock_cb2 = mock.func()
-	args.on_select = mock_cb
-	args.on_select2 = mock_cb2
-	args.dismiss_on_select2 = false
-	args.choices = {{
-		text = 'ListBox_stays_open_with_multi_select2'
-	}}
-
-	local lb = dialogs.ListBox(args)
-	lb:show()
-	local lb_scr = dfhack.gui.getCurViewscreen(true)
-	wait()
-	send_keys('SEC_SELECT')
-
-	expect.eq(lb_scr, dfhack.gui.getCurViewscreen(true), "Sec-selecting an item should NOT close the ListBox")
-
-	send_keys('SELECT')
-	expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "With default dismiss_on_select it should return us to previous screen")
-	
-	expect.eq(1, mock_cb.call_count)
-	expect.eq(1, mock_cb2.call_count)
+    local before_scr = dfhack.gui.getCurViewscreen(true)
+
+    local args = {}
+    local mock_cb = mock.func()
+    local mock_cb2 = mock.func()
+    args.on_select = mock_cb
+    args.on_select2 = mock_cb2
+    args.dismiss_on_select2 = false
+    args.choices = {{
+        text = 'ListBox_stays_open_with_multi_select2'
+    }}
+
+    local lb = dialogs.ListBox(args)
+    lb:show()
+    local lb_scr = dfhack.gui.getCurViewscreen(true)
+    wait()
+    send_keys('SEC_SELECT')
+
+    expect.eq(lb_scr, dfhack.gui.getCurViewscreen(true), "Sec-selecting an item should NOT close the ListBox")
+
+    send_keys('SELECT')
+    expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "With default dismiss_on_select it should return us to previous screen")
+    
+    expect.eq(1, mock_cb.call_count)
+    expect.eq(1, mock_cb2.call_count)
 end
 
 function test.ListBox_with_multi_select()
-	local before_scr = dfhack.gui.getCurViewscreen(true)
-
-	local args = {}
-	local mock_cb = mock.func()
-	local mock_cb2 = mock.func()
-	args.on_select = mock_cb
-	args.on_select2 = mock_cb2
-	args.dismiss_on_select = false
-	args.dismiss_on_select2 = false
-	args.choices = {{
-		text = 'ListBox_with_multi_select'
-	},{
-		text = 'item2'
-	},{
-		text = 'item3'
-	}
-	}
-
-	local lb = dialogs.ListBox(args)
-	lb:show()
-	local lb_scr = dfhack.gui.getCurViewscreen(true)
-	wait()
-	send_keys('SELECT')
-	send_keys('STANDARDSCROLL_DOWN')
-	wait()
-	send_keys('SEC_SELECT')
-	send_keys('STANDARDSCROLL_DOWN')
-	wait()
-	send_keys('SELECT')
-	
-	expect.eq(2, mock_cb.call_count)
-	expect.eq(1, mock_cb2.call_count)
-	
-	expect.eq(lb_scr, dfhack.gui.getCurViewscreen(true), "With both dismiss_on_select and dismiss_on_select2 false the ListBox should stay open")
-	
-	send_keys('LEAVESCREEN')
-	expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "Pressing LEAVESCREEN should still return us to previous screen")	
+    local before_scr = dfhack.gui.getCurViewscreen(true)
+
+    local args = {}
+    local mock_cb = mock.func()
+    local mock_cb2 = mock.func()
+    args.on_select = mock_cb
+    args.on_select2 = mock_cb2
+    args.dismiss_on_select = false
+    args.dismiss_on_select2 = false
+    args.choices = {{
+        text = 'ListBox_with_multi_select'
+    },{
+        text = 'item2'
+    },{
+        text = 'item3'
+    }
+    }
+
+    local lb = dialogs.ListBox(args)
+    lb:show()
+    local lb_scr = dfhack.gui.getCurViewscreen(true)
+    wait()
+    send_keys('SELECT')
+    send_keys('STANDARDSCROLL_DOWN')
+    wait()
+    send_keys('SEC_SELECT')
+    send_keys('STANDARDSCROLL_DOWN')
+    wait()
+    send_keys('SELECT')
+    
+    expect.eq(2, mock_cb.call_count)
+    expect.eq(1, mock_cb2.call_count)
+    
+    expect.eq(lb_scr, dfhack.gui.getCurViewscreen(true), "With both dismiss_on_select and dismiss_on_select2 false the ListBox should stay open")
+    
+    send_keys('LEAVESCREEN')
+    expect.eq(before_scr, dfhack.gui.getCurViewscreen(true), "Pressing LEAVESCREEN should still return us to previous screen")
 end