patch 8.1.1929: no tests for text property popup window

Problem:    No tests for text property popup window.
Solution:   Add a few tests.
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index 80cf706..ee2a8f3 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -199,6 +199,7 @@
 	test_plus_arg_edit \
 	test_popup \
 	test_popupwin \
+	test_popupwin_textprop \
 	test_preview \
 	test_profile \
 	test_prompt_buffer \
@@ -388,6 +389,7 @@
 	test_perl.res \
 	test_plus_arg_edit.res \
 	test_popupwin.res \
+	test_popupwin_textprop.res \
 	test_preview.res \
 	test_profile.res \
 	test_prompt_buffer.res \
diff --git a/src/testdir/dumps/Test_popup_textprop_01.dump b/src/testdir/dumps/Test_popup_textprop_01.dump
new file mode 100644
index 0000000..e85ea7e
--- /dev/null
+++ b/src/testdir/dumps/Test_popup_textprop_01.dump
@@ -0,0 +1,10 @@
+|4+0&#ffffff0|6| @72
+|4|7| @14|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@45
+|4|8| @14|║+0#0000001#ffd7ff255| |t|h|e| |t|e|x|t| |║| +0#0000000#ffffff0@45
+|4|9| @14|╚+0#0000001#ffd7ff255|═@9|╝| +0#0000000#ffffff0@45
+>s|o|m|e| |t|e|x|t| |t+0&#5fd7ff255|o| |w|o|r|k| +0&#ffffff0|w|i|t|h| @52
+|5|1| @72
+|5|2| @72
+|5|3| @72
+|5|4| @72
+@57|5|0|,|1| @9|4|9|%| 
diff --git a/src/testdir/dumps/Test_popup_textprop_02.dump b/src/testdir/dumps/Test_popup_textprop_02.dump
new file mode 100644
index 0000000..58fdc28
--- /dev/null
+++ b/src/testdir/dumps/Test_popup_textprop_02.dump
@@ -0,0 +1,10 @@
+>s+0&#ffffff0|o|m|e| |t|e|x|t| |t+0&#5fd7ff255|o| |w|o|r|k| +0&#ffffff0|w|i|t|h| @52
+|5|1| @14|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@45
+|5|2| @14|║+0#0000001#ffd7ff255| |t|h|e| |t|e|x|t| |║| +0#0000000#ffffff0@45
+|5|3| @14|╚+0#0000001#ffd7ff255|═@9|╝| +0#0000000#ffffff0@45
+|5|4| @72
+|5@1| @72
+|5|6| @72
+|5|7| @72
+|5|8| @72
+@57|5|0|,|1| @9|5|3|%| 
diff --git a/src/testdir/dumps/Test_popup_textprop_03.dump b/src/testdir/dumps/Test_popup_textprop_03.dump
new file mode 100644
index 0000000..efc6853
--- /dev/null
+++ b/src/testdir/dumps/Test_popup_textprop_03.dump
@@ -0,0 +1,10 @@
+|4+0&#ffffff0|6| @72
+|4|7| @17|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@42
+|4|8| @17|║+0#0000001#ffd7ff255| |t|h|e| |t|e|x|t| |║| +0#0000000#ffffff0@42
+|4|9| @17|╚+0#0000001#ffd7ff255|═@9|╝| +0#0000000#ffffff0@42
+|a|w>e|s|o|m|e| |t|e|x|t| |t+0&#5fd7ff255|o| |w|o|r|k| +0&#ffffff0|w|i|t|h| @49
+|5|1| @72
+|5|2| @72
+|5|3| @72
+|5|4| @72
+@57|5|0|,|3| @9|4|9|%| 
diff --git a/src/testdir/dumps/Test_popup_textprop_04.dump b/src/testdir/dumps/Test_popup_textprop_04.dump
new file mode 100644
index 0000000..b8179c6
--- /dev/null
+++ b/src/testdir/dumps/Test_popup_textprop_04.dump
@@ -0,0 +1,10 @@
+|4+0&#ffffff0|6| @72
+|4|7| @9|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@50
+|4|8| @9|║+0#0000001#ffd7ff255| |t|h|e| |t|e|x|t| |║| +0#0000000#ffffff0@50
+|4|9| @9|╚+0#0000001#ffd7ff255|═@9|╝| +0#0000000#ffffff0@50
+>t|e|x|t| |t+0&#5fd7ff255|o| |w|o|r|k| +0&#ffffff0|w|i|t|h| @57
+|5|1| @72
+|5|2| @72
+|5|3| @72
+|5|4| @72
+@57|5|0|,|1| @9|4|9|%| 
diff --git a/src/testdir/dumps/Test_popup_textprop_05.dump b/src/testdir/dumps/Test_popup_textprop_05.dump
new file mode 100644
index 0000000..78ae142
--- /dev/null
+++ b/src/testdir/dumps/Test_popup_textprop_05.dump
@@ -0,0 +1,10 @@
+|4+0&#ffffff0|6| @72
+|4|7| @72
+|4|8| @9|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@50
+|4|9| @9|║+0#0000001#ffd7ff255| |t|h|e| |t|e|x|t| |║| +0#0000000#ffffff0@50
+|i|n|s|e|r|t|e>d| @3|╚+0#0000001#ffd7ff255|═@9|╝| +0#0000000#ffffff0@50
+|t|e|x|t| |t+0&#5fd7ff255|o| |w|o|r|k| +0&#ffffff0|w|i|t|h| @57
+|5|1| @72
+|5|2| @72
+|5|3| @72
+@57|5|0|,|8| @9|4|8|%| 
diff --git a/src/testdir/dumps/Test_popup_textprop_06.dump b/src/testdir/dumps/Test_popup_textprop_06.dump
new file mode 100644
index 0000000..2327998
--- /dev/null
+++ b/src/testdir/dumps/Test_popup_textprop_06.dump
@@ -0,0 +1,10 @@
+|4+0&#ffffff0|6| @9|╔+0#0000001#ffd7ff255|═@9|╗| +0#0000000#ffffff0@50
+|4|7| @9|║+0#0000001#ffd7ff255| |t|h|e| |t|e|x|t| |║| +0#0000000#ffffff0@50
+|4|8| @9|╚+0#0000001#ffd7ff255|═@9|╝| +0#0000000#ffffff0@50
+>t|e|x|t| |t+0&#5fd7ff255|o| |w|o|r|k| +0&#ffffff0|w|i|t|h| @57
+|5|1| @72
+|5|2| @72
+|5|3| @72
+|5|4| @72
+|5@1| @72
+@57|4|9|,|1| @9|5|0|%| 
diff --git a/src/testdir/test_popupwin_textprop.vim b/src/testdir/test_popupwin_textprop.vim
new file mode 100644
index 0000000..26950de
--- /dev/null
+++ b/src/testdir/test_popupwin_textprop.vim
@@ -0,0 +1,54 @@
+" Tests for popup windows for text properties
+
+source check.vim
+CheckFeature textprop
+
+source screendump.vim
+CheckScreendump
+
+func Test_textprop_popup()
+  let lines =<< trim END
+	call setline(1, range(1, 100))
+	call setline(50, 'some text to work with')
+	50
+	normal zz
+	set scrolloff=0
+	call prop_type_add('popupMarker', #{highlight: 'DiffAdd'})
+	call prop_add(50, 11, #{
+		\ length: 7,
+		\ type: 'popupMarker',
+		\ })
+	let winid = popup_create('the text', #{
+	      \ pos: 'botleft', 
+	      \ textprop: 'popupMarker',
+	      \ border: [],
+	      \ padding: [0,1,0,1],
+	      \ close: 'click',
+	      \ })
+  END
+  call writefile(lines, 'XtestTextpropPopup')
+  let buf = RunVimInTerminal('-S XtestTextpropPopup', #{rows: 10})
+  call VerifyScreenDump(buf, 'Test_popup_textprop_01', {})
+
+  call term_sendkeys(buf, "zt")
+  call VerifyScreenDump(buf, 'Test_popup_textprop_02', {})
+
+  call term_sendkeys(buf, "zzIawe\<Esc>")
+  call VerifyScreenDump(buf, 'Test_popup_textprop_03', {})
+
+  call term_sendkeys(buf, "0dw")
+  call VerifyScreenDump(buf, 'Test_popup_textprop_04', {})
+
+  call term_sendkeys(buf, "Oinserted\<Esc>")
+  call VerifyScreenDump(buf, 'Test_popup_textprop_05', {})
+
+  call term_sendkeys(buf, "k2dd")
+  call VerifyScreenDump(buf, 'Test_popup_textprop_06', {})
+
+  " clean up
+  call StopVimInTerminal(buf)
+  call delete('XtestTextpropPopup')
+endfunc
+
+
+" vim: shiftwidth=2 sts=2
diff --git a/src/textprop.c b/src/textprop.c
index 7947d34..cc95546 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -396,8 +396,7 @@
     int			i;
 
     // w_botline may not have been updated yet.
-    if (wp->w_botline > wp->w_buffer->b_ml.ml_line_count)
-	wp->w_botline = wp->w_buffer->b_ml.ml_line_count + 1;
+    validate_botline();
     for (lnum = wp->w_topline; lnum < wp->w_botline; ++lnum)
     {
 	count = get_text_props(wp->w_buffer, lnum, &props, FALSE);
diff --git a/src/version.c b/src/version.c
index e317c8f..1e628fd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1929,
+/**/
     1928,
 /**/
     1927,