patch 9.0.1762: Not able to get the virtual text property

Problem:  Not able to get the virtual text property
Solution: Make prop_list() return virtual text and alignment

closes: #12860

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
diff --git a/src/testdir/test_textprop.vim b/src/testdir/test_textprop.vim
index 9b03d10..9cf46d7 100644
--- a/src/testdir/test_textprop.vim
+++ b/src/testdir/test_textprop.vim
@@ -4025,4 +4025,39 @@
 
   call StopVimInTerminal(buf)
 endfunc
+
+" Test for getting the virtual text properties
+func Test_virtual_text_get()
+  new foobar
+  call setline(1, '12345678')
+  call prop_type_add('test', #{highlight: 'Search'})
+  call prop_add(1, 2, #{type: 'test', text: ' virtual text1 '})
+  call prop_add(1, 3, #{type: 'test'})
+  call prop_add(1, 0, #{type: 'test', text: ' virtual text2 ',
+        \               text_align: 'right'})
+  call prop_add(1, 5, #{type: 'test'})
+  call prop_add(1, 6, #{type: 'test', text: ' virtual text3 ',
+        \               text_wrap: 'wrap'})
+
+  let p = prop_list(1, #{end_lnum: -1})
+  call assert_equal(
+        \ #{lnum: 1, id: -1, col: 2, type_bufnr: 0, end: 1,
+        \   type: 'test', length: 1, start: 1,
+        \   text: ' virtual text1 '}, p[0])
+  call assert_equal(
+        \ #{lnum: 1, id: 0, col: 3, type_bufnr: 0, end: 1,
+        \   type: 'test', length: 0, start: 1}, p[1])
+  call assert_equal(
+        \ #{lnum: 1, id: 0, col: 5, type_bufnr: 0, end: 1,
+        \   type: 'test', length: 0, start: 1}, p[2])
+  call assert_equal(
+        \ #{lnum: 1, id: -3, col: 6, type_bufnr: 0, end: 1, type: 'test',
+        \   text_wrap: 'wrap', length: 1, start: 1, text: ' virtual text3 '},
+        \  p[3])
+  call assert_equal('right', p[4].text_align)
+
+  call prop_type_delete('test')
+  bwipe!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab