# Copyright (C) 2009, 2010 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This file is part of the GDB testsuite.  It tests the mechanism
# exposing values to Python.

if $tracelevel then {
    strace $tracelevel
}

set testfile "py-frame"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
    untested "Couldn't compile ${srcfile}"
    return -1
}

# Run a command in GDB, and report a failure if a Python exception is thrown.
# If report_pass is true, report a pass if no exception is thrown.
proc gdb_py_test_silent_cmd {cmd name report_pass} {
  global gdb_prompt

  gdb_test_multiple $cmd $name {
      -re "Traceback.*$gdb_prompt $"  { fail $name }
      -re "$gdb_prompt $"	      { if $report_pass { pass $name } }
  }
}

# Start with a fresh gdb.

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }

# The following tests require execution.

if ![runto_main] then {
    fail "Can't run to main"
    return 0
}

gdb_breakpoint [gdb_get_line_number "Block break here."]
gdb_continue_to_breakpoint "Block break here."
gdb_py_test_silent_cmd "python bf1 = gdb.selected_frame ()" "get frame" 0

# First test that read_var is unaffected by PR 11036 changes.
gdb_test "python print bf1.read_var(\"i\")" "\"stuff\"" "test i"
gdb_test "python print bf1.read_var(\"f\")" "\"foo\"" "test f"
gdb_test "python print bf1.read_var(\"b\")" "\"bar\"" "test b"

# Test the read_var function in another block other than the current
# block (in this case, the super block). Test thar read_var is reading
# the correct variables of i and f but they are the correct value and type.
gdb_py_test_silent_cmd "python sb = bf1.block().superblock" "get superblock" 0
gdb_test "python print bf1.read_var(\"i\", sb)" "1.1.*" "test i = 1.1"
gdb_test "python print bf1.read_var(\"i\", sb).type" "double" "test double i"
gdb_test "python print bf1.read_var(\"f\", sb)" "2.2.*" "test f = 2.2"
gdb_test "python print bf1.read_var(\"f\", sb).type" "double" "test double f"

# And again test another outerblock, this time testing "i" is the
# correct value and type.
gdb_py_test_silent_cmd "python sb = sb.superblock" "get superblock" 0
gdb_test "python print bf1.read_var(\"i\", sb)" "99" "test i = 99"
gdb_test "python print bf1.read_var(\"i\", sb).type" "int" "test int i"

gdb_breakpoint "f2"
gdb_continue_to_breakpoint "breakpoint at f2"
gdb_test "up" "" ""

gdb_py_test_silent_cmd "python f1 = gdb.selected_frame ()" "get second frame" 0
gdb_py_test_silent_cmd "python f0 = f1.newer ()" "get first frame" 0

gdb_test "python print 'result =', f0 == f1" " = False" "test equality comparison (false)"
gdb_test "python print 'result =', f0 == f0" " = True" "test equality comparison (true)"
gdb_test "python print 'result =', f0 != f1" " = True" "test inequality comparison (true)"
gdb_test "python print 'result =', f0 != f0" " = False" "test inequality comparison (false)"
gdb_test "python print 'result =', f0.is_valid ()" " = True" "test Frame.is_valid"
gdb_test "python print 'result =', f0.name ()" " = f2" "test Frame.name"
gdb_test "python print 'result =', f0.type () == gdb.NORMAL_FRAME" " = True" "test Frame.type"
gdb_test "python print 'result =', f0.unwind_stop_reason () == gdb.FRAME_UNWIND_NO_REASON" " = True" "test Frame.type"
gdb_test "python print 'result =', gdb.frame_stop_reason_string (gdb.FRAME_UNWIND_INNER_ID)" " = previous frame inner to this frame \\(corrupt stack\\?\\)" "test gdb.frame_stop_reason_string"
gdb_test "python print 'result =', f0.pc ()" " = \[0-9\]+" "test Frame.pc"
gdb_test "python print 'result =', f0.older () == f1" " = True" "test Frame.older"
gdb_test "python print 'result =', f1.newer () == f0" " = True" "test Frame.newer"
gdb_test "python print 'result =', f0.read_var ('variable_which_surely_doesnt_exist')" \
  "ValueError: Variable 'variable_which_surely_doesnt_exist' not found.*Error while executing Python code." \
  "test Frame.read_var - error"
gdb_test "python print 'result =', f0.read_var ('a')" " = 1" "test Frame.read_var - success"

gdb_test "python print 'result =', gdb.selected_frame () == f1" " = True" "test gdb.selected_frame"