patch 8.1.1469: no test for checking the cursor style response

Problem:    No test for checking the cursor style response.
Solution:   Add a simple test.  Also include the missing part of 8.1.1464.

src/term.c

@@ -4015,7 +4015,8 @@ term_cursor_color(char_u *color)
 blink_state_is_inverted()
 {
 #ifdef FEAT_TERMRESPONSE
-    return rbm_status.tr_progress == STATUS_GOT && rcs_status.tr_progress == STATUS_GOT
+    return rbm_status.tr_progress == STATUS_GOT
+	&& rcs_status.tr_progress == STATUS_GOT
 		&& initial_cursor_blink != initial_cursor_shape_blink;
 #else
     return FALSE;
@@ -5062,7 +5063,7 @@ check_termcode(
 	     * {lead}1$r<digit> q{tail}
 	     *
 	     * {lead} can be <Esc>P or DCS
-	     * {tail} can be Esc>\ or STERM
+	     * {tail} can be <Esc>\ or STERM
 	     *
 	     * Consume any code that starts with "{lead}.+r" or "{lead}.$r".
 	     */
@@ -5072,11 +5073,11 @@ check_termcode(
 	    {
 		j = 1 + (tp[0] == ESC);
 		if (len < j + 3)
-		    i = len; /* need more chars */
+		    i = len; // need more chars
 		else if ((argp[1] != '+' && argp[1] != '$') || argp[2] != 'r')
-		  i = 0; /* no match */
+		    i = 0; // no match
 		else if (argp[1] == '+')
-		  /* key code response */
+		    // key code response
 		    for (i = j; i < len; ++i)
 		    {
 			if ((tp[i] == ESC && i + 1 < len && tp[i + 1] == '\\')
@@ -5092,9 +5093,9 @@ check_termcode(
 		    }
 		else
 		{
-		    /* Probably the cursor shape response.  Make sure that "i"
-		     * is equal to "len" when there are not sufficient
-		     * characters. */
+		    // Probably the cursor shape response.  Make sure that "i"
+		    // is equal to "len" when there are not sufficient
+		    // characters.
 		    for (i = j + 3; i < len; ++i)
 		    {
 			if (i - j == 3 && !isdigit(tp[i]))
@@ -5110,13 +5111,13 @@ check_termcode(
 			{
 			    int number = argp[3] - '0';
 
-			    /* 0, 1 = block blink, 2 = block
-			     * 3 = underline blink, 4 = underline
-			     * 5 = vertical bar blink, 6 = vertical bar */
+			    // 0, 1 = block blink, 2 = block
+			    // 3 = underline blink, 4 = underline
+			    // 5 = vertical bar blink, 6 = vertical bar
 			    number = number == 0 ? 1 : number;
 			    initial_cursor_shape = (number + 1) / 2;
-			    /* The blink flag is actually inverted, compared to
-			     * the value set with T_SH. */
+			    // The blink flag is actually inverted, compared to
+			    // the value set with T_SH.
 			    initial_cursor_shape_blink =
 						   (number & 1) ? FALSE : TRUE;
 			    rcs_status.tr_progress = STATUS_GOT;

src/testdir/test_termcodes.vim

@@ -624,3 +624,63 @@ func Test_xterm_mouse_click_in_fold_columns()
   let &mouse = save_mouse
   bwipe!
 endfunc
+
+" This only checks if the sequence is recognized.
+" TODO: check that the values were parsed properly
+func Test_term_rgb_response()
+  set t_RF=x
+  set t_RB=y
+
+  " response to t_RF, 4 digits
+  let red = 0x12
+  let green = 0x34
+  let blue = 0x56
+  let seq = printf("\<Esc>]10;rgb:%02x00/%02x00/%02x00\x07", red, green, blue)
+  call feedkeys(seq, 'Lx!')
+  call assert_equal(seq, v:termrfgresp)
+
+  " response to t_RF, 2 digits
+  let red = 0x78
+  let green = 0x9a
+  let blue = 0xbc
+  let seq = printf("\<Esc>]10;rgb:%02x/%02x/%02x\x07", red, green, blue)
+  call feedkeys(seq, 'Lx!')
+  call assert_equal(seq, v:termrfgresp)
+
+  " response to t_RB, 4 digits
+  let red = 0x21
+  let green = 0x43
+  let blue = 0x65
+  let seq = printf("\<Esc>]11;rgb:%02x00/%02x00/%02x00\x07", red, green, blue)
+  call feedkeys(seq, 'Lx!')
+  call assert_equal(seq, v:termrbgresp)
+
+  " response to t_RB, 2 digits
+  let red = 0x87
+  let green = 0xa9
+  let blue = 0xcb
+  let seq = printf("\<Esc>]11;rgb:%02x/%02x/%02x\x07", red, green, blue)
+  call feedkeys(seq, 'Lx!')
+  call assert_equal(seq, v:termrbgresp)
+  
+  set t_RF= t_RB=
+endfunc
+
+" This only checks if the sequence is recognized.
+" This must be last, because it has side effects to xterm properties.
+" TODO: check that the values were parsed properly
+func Test_xx_term_style_response()
+  " Termresponse is only parsed when t_RV is not empty.
+  set t_RV=x
+
+  " send the termresponse to trigger requesting the XT codes
+  let seq = "\<Esc>[>41;337;0c"
+  call feedkeys(seq, 'Lx!')
+  call assert_equal(seq, v:termresponse)
+
+  let seq = "\<Esc>P1$r2 q\<Esc>\\"
+  call feedkeys(seq, 'Lx!')
+  call assert_equal(seq, v:termstyleresp)
+
+  set t_RV=
+endfunc

src/version.c

@@ -767,6 +767,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1469,
 /**/
     1468,
 /**/