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      1 # Copyright 2023-2024 Free Software Foundation, Inc.
      2 
      3 # This program is free software; you can redistribute it and/or modify
      4 # it under the terms of the GNU General Public License as published by
      5 # the Free Software Foundation; either version 3 of the License, or
      6 # (at your option) any later version.
      7 #
      8 # This program is distributed in the hope that it will be useful,
      9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     11 # GNU General Public License for more details.
     12 #
     13 # You should have received a copy of the GNU General Public License
     14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
     15 
     16 # Test the handling of non-Value responses from 'children' method.
     17 
     18 require allow_dap_tests
     19 
     20 load_lib dap-support.exp
     21 
     22 standard_testfile lazy-string.c
     23 
     24 if {[build_executable ${testfile}.exp $testfile $srcfile] == -1} {
     25     return
     26 }
     27 
     28 set remote_python_file [gdb_remote_download host \
     29 			    ${srcdir}/${subdir}/${testfile}.py]
     30 
     31 save_vars GDBFLAGS {
     32     append GDBFLAGS " -iex \"source $remote_python_file\""
     33 
     34     if {[dap_initialize] == ""} {
     35 	return
     36     }
     37 }
     38 
     39 set launch_id [dap_launch $testfile]
     40 
     41 set line [gdb_get_line_number "STOP"]
     42 set obj [dap_check_request_and_response "set breakpoint by line number" \
     43 	     setBreakpoints \
     44 	     [format {o source [o path [%s]] breakpoints [a [o line [i %d]]]} \
     45 		  [list s $srcfile] $line]]
     46 set line_bpno [dap_get_breakpoint_number $obj]
     47 
     48 dap_check_request_and_response "configurationDone" configurationDone
     49 
     50 dap_check_response "launch response" launch $launch_id
     51 
     52 dap_wait_for_event_and_check "stopped at line breakpoint" stopped \
     53     "body reason" breakpoint \
     54     "body hitBreakpointIds" $line_bpno
     55 
     56 set bt [lindex [dap_check_request_and_response "backtrace" stackTrace \
     57 		    {o threadId [i 1]}] \
     58 	    0]
     59 set frame_id [dict get [lindex [dict get $bt body stackFrames] 0] id]
     60 
     61 set scopes [dap_check_request_and_response "get scopes" scopes \
     62 		[format {o frameId [i %d]} $frame_id]]
     63 set scopes [dict get [lindex $scopes 0] body scopes]
     64 
     65 lassign $scopes scope reg_scope
     66 gdb_assert {[dict get $scope name] == "Locals"} "scope is locals"
     67 gdb_assert {[dict get $scope namedVariables] == 1} "one var in scope"
     68 
     69 set num [dict get $scope variablesReference]
     70 set refs [lindex [dap_check_request_and_response "fetch variable" \
     71 		      "variables" \
     72 		      [format {o variablesReference [i %d] count [i 1]} \
     73 			   $num]] \
     74 	      0]
     75 
     76 set vars [dict get $refs body variables]
     77 gdb_assert {[llength $vars] == 1} "just one variable"
     78 
     79 set var [lindex $vars 0]
     80 gdb_assert {[dict get $var name] == "the_string"} "variable name"
     81 gdb_assert {[dict get $var value] == "contents"} "variable value"
     82 gdb_assert {[dict get $var namedVariables] == 2} "variable has two children"
     83 
     84 set num [dict get $var variablesReference]
     85 set refs [lindex [dap_check_request_and_response "fetch children of variable" \
     86 		      "variables" \
     87 		      [format {o variablesReference [i %d] count [i 2]} \
     88 			   $num]] \
     89 	      0]
     90 
     91 set vars [dict get $refs body variables]
     92 gdb_assert {[llength $vars] == 2} "got two children of variable"
     93 
     94 set saw_first 0
     95 set saw_second 0
     96 foreach var [dict get $refs body variables] {
     97     set name [dict get $var name]
     98     switch $name {
     99 	"first" {
    100 	    gdb_assert {[dict get $var value] == 23} "value of first"
    101 	    incr saw_first
    102 	}
    103 
    104 	"second" {
    105 	    # The result looks strange here, but only because TON does
    106 	    # not handle the backslash-quote sequence properly when
    107 	    # decoding the JSON.  The actual JSON is: "value":
    108 	    # "\"DEI\"".
    109 	    gdb_assert {[dict get $var value] == "\\\"DEI\\\""} \
    110 		"value of second"
    111 	    incr saw_second
    112 	}
    113 
    114 	default {
    115 	    fail "unknown variable $name"
    116 	}
    117     }
    118 }
    119 
    120 gdb_assert {$saw_first == 1 && $saw_second == 1} "saw both children"
    121 
    122 dap_shutdown
    123