packages/Python/lldbsuite/test/tools/lldb-mi/variable/TestMiVar.py

   1 """
   2 Test lldb-mi -var-xxx commands.
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8 import lldbmi_testcase
   9 from lldbsuite.test.decorators import *
  10 from lldbsuite.test.lldbtest import *
  11 from lldbsuite.test import lldbutil
  12
  13
  14 class MiVarTestCase(lldbmi_testcase.MiTestCaseBase):
  15
  16     mydir = TestBase.compute_mydir(__file__)
  17
  18     @skipIfWindows  # llvm.org/pr24452: Get lldb-mi tests working on Windows
  19     @skipIfFreeBSD  # llvm.org/pr22411: Failure presumably due to known thread races
  20     def test_lldbmi_eval(self):
  21         """Test that 'lldb-mi --interpreter' works for evaluating."""
  22
  23         self.spawnLldbMi(args=None)
  24
  25         # Load executable
  26         self.runCmd("-file-exec-and-symbols %s" % self.myexe)
  27         self.expect("\^done")
  28
  29         # Run to program return
  30         line = line_number('main.cpp', '// BP_return')
  31         self.runCmd("-break-insert main.cpp:%d" % line)
  32         self.expect("\^done,bkpt={number=\"1\"")
  33         self.runCmd("-exec-run")
  34         self.expect("\^running")
  35         self.expect("\*stopped,reason=\"breakpoint-hit\"")
  36
  37         # Print non-existant variable
  38         self.runCmd("-var-create var1 * undef")
  39         self.expect(
  40             "\^error,msg=\"error: use of undeclared identifier \'undef\'\\\\n\"")
  41         self.runCmd("-data-evaluate-expression undef")
  42         self.expect(
  43             "\^error,msg=\"error: use of undeclared identifier \'undef\'\\\\n\"")
  44
  45         # Print global "g_MyVar", modify, delete and create again
  46         self.runCmd("-data-evaluate-expression g_MyVar")
  47         self.expect("\^done,value=\"3\"")
  48         self.runCmd("-var-create var2 * g_MyVar")
  49         self.expect(
  50             "\^done,name=\"var2\",numchild=\"0\",value=\"3\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
  51         self.runCmd("-var-evaluate-expression var2")
  52         self.expect("\^done,value=\"3\"")
  53         self.runCmd("-var-show-attributes var2")
  54         self.expect("\^done,status=\"editable\"")
  55         self.runCmd("-var-list-children var2")
  56         self.expect("\^done,numchild=\"0\",has_more=\"0\"")
  57         # Ensure -var-list-children also works with quotes
  58         self.runCmd("-var-list-children \"var2\"")
  59         self.expect("\^done,numchild=\"0\",has_more=\"0\"")
  60         self.runCmd("-data-evaluate-expression \"g_MyVar=30\"")
  61         self.expect("\^done,value=\"30\"")
  62         self.runCmd("-var-update --all-values var2")
  63         # self.expect("\^done,changelist=\[\{name=\"var2\",value=\"30\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
  64         # FIXME -var-update doesn't work
  65         self.runCmd("-var-delete var2")
  66         self.expect("\^done")
  67         self.runCmd("-var-create var2 * g_MyVar")
  68         self.expect(
  69             "\^done,name=\"var2\",numchild=\"0\",value=\"30\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
  70
  71         # Print static "s_MyVar", modify, delete and create again
  72         self.runCmd("-data-evaluate-expression s_MyVar")
  73         self.expect("\^done,value=\"30\"")
  74         self.runCmd("-var-create var3 * s_MyVar")
  75         self.expect(
  76             "\^done,name=\"var3\",numchild=\"0\",value=\"30\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
  77         self.runCmd("-var-evaluate-expression var3")
  78         self.expect("\^done,value=\"30\"")
  79         self.runCmd("-var-show-attributes var3")
  80         self.expect("\^done,status=\"editable\"")
  81         self.runCmd("-var-list-children var3")
  82         self.expect("\^done,numchild=\"0\",has_more=\"0\"")
  83         self.runCmd("-data-evaluate-expression \"s_MyVar=3\"")
  84         self.expect("\^done,value=\"3\"")
  85         self.runCmd("-var-update --all-values var3")
  86         # self.expect("\^done,changelist=\[\{name=\"var3\",value=\"3\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
  87         # FIXME -var-update doesn't work
  88         self.runCmd("-var-delete var3")
  89         self.expect("\^done")
  90         self.runCmd("-var-create var3 * s_MyVar")
  91         self.expect(
  92             "\^done,name=\"var3\",numchild=\"0\",value=\"3\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
  93
  94         # Print local "b", modify, delete and create again
  95         self.runCmd("-data-evaluate-expression b")
  96         self.expect("\^done,value=\"20\"")
  97         self.runCmd("-var-create var4 * b")
  98         self.expect(
  99             "\^done,name=\"var4\",numchild=\"0\",value=\"20\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
 100         self.runCmd("-var-evaluate-expression var4")
 101         self.expect("\^done,value=\"20\"")
 102         self.runCmd("-var-show-attributes var4")
 103         self.expect("\^done,status=\"editable\"")
 104         self.runCmd("-var-list-children var4")
 105         self.expect("\^done,numchild=\"0\",has_more=\"0\"")
 106         self.runCmd("-data-evaluate-expression \"b=2\"")
 107         self.expect("\^done,value=\"2\"")
 108         self.runCmd("-var-update --all-values var4")
 109         # self.expect("\^done,changelist=\[\{name=\"var4\",value=\"2\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
 110         # FIXME -var-update doesn't work
 111         self.runCmd("-var-delete var4")
 112         self.expect("\^done")
 113         self.runCmd("-var-create var4 * b")
 114         self.expect(
 115             "\^done,name=\"var4\",numchild=\"0\",value=\"2\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
 116
 117         # Print temp "a + b"
 118         self.runCmd("-data-evaluate-expression \"a + b\"")
 119         self.expect("\^done,value=\"12\"")
 120         self.runCmd("-var-create var5 * \"a + b\"")
 121         self.expect(
 122             "\^done,name=\"var5\",numchild=\"0\",value=\"12\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
 123         self.runCmd("-var-evaluate-expression var5")
 124         self.expect("\^done,value=\"12\"")
 125         self.runCmd("-var-show-attributes var5")
 126         self.expect("\^done,status=\"editable\"")  # FIXME editable or not?
 127         self.runCmd("-var-list-children var5")
 128         self.expect("\^done,numchild=\"0\",has_more=\"0\"")
 129
 130         # Print argument "argv[0]"
 131         self.runCmd("-data-evaluate-expression \"argv[0]\"")
 132         self.expect(
 133             "\^done,value=\"0x[0-9a-f]+ \\\\\\\".*?%s\\\\\\\"\"" %
 134             self.myexe)
 135         self.runCmd("-var-create var6 * \"argv[0]\"")
 136         self.expect(
 137             "\^done,name=\"var6\",numchild=\"1\",value=\"0x[0-9a-f]+ \\\\\\\".*?%s\\\\\\\"\",type=\"const char \*\",thread-id=\"1\",has_more=\"0\"" %
 138             self.myexe)
 139         self.runCmd("-var-evaluate-expression var6")
 140         self.expect(
 141             "\^done,value=\"0x[0-9a-f]+ \\\\\\\".*?%s\\\\\\\"\"" %
 142             self.myexe)
 143         self.runCmd("-var-show-attributes var6")
 144         self.expect("\^done,status=\"editable\"")
 145         self.runCmd("-var-list-children --all-values var6")
 146         # FIXME: The name below is not correct. It should be "var.*argv[0]".
 147         # FIXME -var-list-children shows invalid thread-id
 148         self.expect(
 149             "\^done,numchild=\"1\",children=\[child=\{name=\"var6\.\*\$[0-9]+\",exp=\"\*\$[0-9]+\",numchild=\"0\",type=\"const char\",thread-id=\"4294967295\",value=\"47 '/'\",has_more=\"0\"\}\],has_more=\"0\"")
 150
 151         # Print an expression with spaces and optional arguments
 152         self.runCmd("-data-evaluate-expression \"a + b\"")
 153         self.expect("\^done,value=\"12\"")
 154         self.runCmd("-var-create var7 * \"a + b\" --thread 1 --frame 0")
 155         self.expect(
 156             "\^done,name=\"var7\",numchild=\"0\",value=\"12\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
 157
 158     @skipIfWindows  # llvm.org/pr24452: Get lldb-mi tests working on Windows
 159     @skipIfFreeBSD  # llvm.org/pr22411: Failure presumably due to known thread races
 160     @skipIfLinux  # llvm.org/pr22841: lldb-mi tests fail on all Linux buildbots
 161     def test_lldbmi_var_update(self):
 162         """Test that 'lldb-mi --interpreter' works for -var-update."""
 163
 164         self.spawnLldbMi(args=None)
 165
 166         # Load executable
 167         self.runCmd("-file-exec-and-symbols %s" % self.myexe)
 168         self.expect("\^done")
 169
 170         # Run to BP_var_update_test_init
 171         line = line_number('main.cpp', '// BP_var_update_test_init')
 172         self.runCmd("-break-insert main.cpp:%d" % line)
 173         self.expect("\^done,bkpt={number=\"1\"")
 174         self.runCmd("-exec-run")
 175         self.expect("\^running")
 176         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 177
 178         # Setup variables
 179         self.runCmd("-var-create var_l * l")
 180         self.expect(
 181             "\^done,name=\"var_l\",numchild=\"0\",value=\"1\",type=\"long\",thread-id=\"1\",has_more=\"0\"")
 182         self.runCmd("-var-create var_complx * complx")
 183         self.expect(
 184             "\^done,name=\"var_complx\",numchild=\"3\",value=\"\{\.\.\.\}\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"")
 185         self.runCmd("-var-create var_complx_array * complx_array")
 186         self.expect(
 187             "\^done,name=\"var_complx_array\",numchild=\"2\",value=\"\[2\]\",type=\"complex_type \[2\]\",thread-id=\"1\",has_more=\"0\"")
 188
 189         # Go to BP_var_update_test_l
 190         line = line_number('main.cpp', '// BP_var_update_test_l')
 191         self.runCmd("-break-insert main.cpp:%d" % line)
 192         self.expect("\^done,bkpt={number=\"2\"")
 193         self.runCmd("-exec-continue")
 194         self.expect("\^running")
 195         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 196
 197         # Test that var_l was updated
 198         self.runCmd("-var-update --all-values var_l")
 199         self.expect(
 200             "\^done,changelist=\[\{name=\"var_l\",value=\"0\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
 201
 202         # Go to BP_var_update_test_complx
 203         line = line_number('main.cpp', '// BP_var_update_test_complx')
 204         self.runCmd("-break-insert main.cpp:%d" % line)
 205         self.expect("\^done,bkpt={number=\"3\"")
 206         self.runCmd("-exec-continue")
 207         self.expect("\^running")
 208         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 209
 210         # Test that var_complx was updated
 211         self.runCmd("-var-update --all-values var_complx")
 212         self.expect(
 213             "\^done,changelist=\[\{name=\"var_complx\",value=\"\{\.\.\.\}\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
 214
 215         # Go to BP_var_update_test_complx_array
 216         line = line_number('main.cpp', '// BP_var_update_test_complx_array')
 217         self.runCmd("-break-insert main.cpp:%d" % line)
 218         self.expect("\^done,bkpt={number=\"4\"")
 219         self.runCmd("-exec-continue")
 220         self.expect("\^running")
 221         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 222
 223         # Test that var_complex_array was updated
 224         self.runCmd("-var-update --all-values var_complx_array")
 225         self.expect(
 226             "\^done,changelist=\[\{name=\"var_complx_array\",value=\"\[2\]\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
 227
 228     @skipIfWindows  # llvm.org/pr24452: Get lldb-mi tests working on Windows
 229     @skipIfFreeBSD  # llvm.org/pr22411: Failure presumably due to known thread races
 230     def test_lldbmi_var_create_register(self):
 231         """Test that 'lldb-mi --interpreter' works for -var-create $regname."""
 232
 233         self.spawnLldbMi(args=None)
 234
 235         # Load executable
 236         self.runCmd("-file-exec-and-symbols %s" % self.myexe)
 237         self.expect("\^done")
 238
 239         # Run to main
 240         self.runCmd("-break-insert -f main")
 241         self.expect("\^done,bkpt={number=\"1\"")
 242         self.runCmd("-exec-run")
 243         self.expect("\^running")
 244         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 245
 246         # Find name of register 0
 247         self.runCmd("-data-list-register-names 0")
 248         self.expect("\^done,register-names=\[\".+?\"\]")
 249         register_name = self.child.after.split("\"")[1]
 250
 251         # Create variable for register 0
 252         # Note that message is different in Darwin and Linux:
 253         # Darwin: "^done,name=\"var_reg\",numchild=\"0\",value=\"0x[0-9a-f]+\",type=\"unsigned long\",thread-id=\"1\",has_more=\"0\"
 254         # Linux:
 255         # "^done,name=\"var_reg\",numchild=\"0\",value=\"0x[0-9a-f]+\",type=\"unsigned
 256         # int\",thread-id=\"1\",has_more=\"0\"
 257         self.runCmd("-var-create var_reg * $%s" % register_name)
 258         self.expect(
 259             "\^done,name=\"var_reg\",numchild=\"0\",value=\"0x[0-9a-f]+\",type=\"unsigned (long|int)\",thread-id=\"1\",has_more=\"0\"")
 260
 261         # Assign value to variable
 262         self.runCmd("-var-assign var_reg \"6\"")
 263         # FIXME: the output has different format for 32bit and 64bit values
 264         self.expect("\^done,value=\"0x0*?6\"")
 265
 266         # Assert register 0 updated
 267         self.runCmd("-data-list-register-values d 0")
 268         self.expect("\^done,register-values=\[{number=\"0\",value=\"6\"")
 269
 270     @skipIfWindows  # llvm.org/pr24452: Get lldb-mi tests working on Windows
 271     @skipIfFreeBSD  # llvm.org/pr22411: Failure presumably due to known thread races
 272     @skipIfLinux  # llvm.org/pr22841: lldb-mi tests fail on all Linux buildbots
 273     def test_lldbmi_var_list_children(self):
 274         """Test that 'lldb-mi --interpreter' works for -var-list-children."""
 275
 276         self.spawnLldbMi(args=None)
 277
 278         # Load executable
 279         self.runCmd("-file-exec-and-symbols %s" % self.myexe)
 280         self.expect("\^done")
 281
 282         # Run to BP_var_list_children_test
 283         line = line_number('main.cpp', '// BP_var_list_children_test')
 284         self.runCmd("-break-insert main.cpp:%d" % line)
 285         self.expect("\^done,bkpt={number=\"1\"")
 286         self.runCmd("-exec-run")
 287         self.expect("\^running")
 288         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 289
 290         # Create variable
 291         self.runCmd("-var-create var_complx * complx")
 292         self.expect(
 293             "\^done,name=\"var_complx\",numchild=\"3\",value=\"\{\.\.\.\}\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"")
 294         self.runCmd("-var-create var_complx_array * complx_array")
 295         self.expect(
 296             "\^done,name=\"var_complx_array\",numchild=\"2\",value=\"\[2\]\",type=\"complex_type \[2\]\",thread-id=\"1\",has_more=\"0\"")
 297         self.runCmd("-var-create var_pcomplx * pcomplx")
 298         self.expect(
 299             "\^done,name=\"var_pcomplx\",numchild=\"2\",value=\"\{\.\.\.\}\",type=\"pcomplex_type\",thread-id=\"1\",has_more=\"0\"")
 300
 301         # Test that -var-evaluate-expression can evaluate the children of
 302         # created varobj
 303         self.runCmd("-var-list-children var_complx")
 304         self.runCmd("-var-evaluate-expression var_complx.i")
 305         self.expect("\^done,value=\"3\"")
 306         self.runCmd("-var-list-children var_complx_array")
 307         self.runCmd("-var-evaluate-expression var_complx_array.[0]")
 308         self.expect("\^done,value=\"\{...\}\"")
 309         self.runCmd("-var-list-children var_pcomplx")
 310         self.runCmd("-var-evaluate-expression var_pcomplx.complex_type")
 311         self.expect("\^done,value=\"\{...\}\"")
 312
 313         # Test that -var-list-children lists empty children if range is empty
 314         # (and that print-values is optional)
 315         self.runCmd("-var-list-children var_complx 0 0")
 316         self.expect("\^done,numchild=\"0\",has_more=\"1\"")
 317         self.runCmd("-var-list-children var_complx 99 0")
 318         self.expect("\^done,numchild=\"0\",has_more=\"1\"")
 319         self.runCmd("-var-list-children var_complx 99 3")
 320         self.expect("\^done,numchild=\"0\",has_more=\"0\"")
 321
 322         # Test that -var-list-children lists all children with their values
 323         # (and that from and to are optional)
 324         self.runCmd("-var-list-children --all-values var_complx")
 325         self.expect(
 326             "\^done,numchild=\"3\",children=\[child=\{name=\"var_complx\.i\",exp=\"i\",numchild=\"0\",type=\"int\",thread-id=\"1\",value=\"3\",has_more=\"0\"\},child=\{name=\"var_complx\.inner\",exp=\"inner\",numchild=\"1\",type=\"complex_type::\(anonymous struct\)\",thread-id=\"1\",value=\"\{\.\.\.\}\",has_more=\"0\"\},child=\{name=\"var_complx\.complex_ptr\",exp=\"complex_ptr\",numchild=\"3\",type=\"complex_type \*\",thread-id=\"1\",value=\"0x[0-9a-f]+\",has_more=\"0\"\}\],has_more=\"0\"")
 327         self.runCmd("-var-list-children --simple-values var_complx_array")
 328         self.expect(
 329             "\^done,numchild=\"2\",children=\[child=\{name=\"var_complx_array\.\[0\]\",exp=\"\[0\]\",numchild=\"3\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"\},child=\{name=\"var_complx_array\.\[1\]\",exp=\"\[1\]\",numchild=\"3\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"\}\],has_more=\"0\"")
 330         self.runCmd("-var-list-children 0 var_pcomplx")
 331         self.expect(
 332             "\^done,numchild=\"2\",children=\[child=\{name=\"var_pcomplx\.complex_type\",exp=\"complex_type\",numchild=\"3\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"\},child={name=\"var_pcomplx\.complx\",exp=\"complx\",numchild=\"3\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"\}\],has_more=\"0\"")
 333
 334         # Test that -var-list-children lists children without values
 335         self.runCmd("-var-list-children 0 var_complx 0 1")
 336         self.expect(
 337             "\^done,numchild=\"1\",children=\[child=\{name=\"var_complx\.i\",exp=\"i\",numchild=\"0\",type=\"int\",thread-id=\"1\",has_more=\"0\"\}\],has_more=\"1\"")
 338         self.runCmd("-var-list-children --no-values var_complx 0 1")
 339         self.expect(
 340             "\^done,numchild=\"1\",children=\[child=\{name=\"var_complx\.i\",exp=\"i\",numchild=\"0\",type=\"int\",thread-id=\"1\",has_more=\"0\"\}\],has_more=\"1\"")
 341         self.runCmd("-var-list-children --no-values var_complx_array 0 1")
 342         self.expect(
 343             "\^done,numchild=\"1\",children=\[child=\{name=\"var_complx_array\.\[0\]\",exp=\"\[0\]\",numchild=\"3\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"\}\],has_more=\"1\"")
 344         self.runCmd("-var-list-children --no-values var_pcomplx 0 1")
 345         self.expect(
 346             "\^done,numchild=\"1\",children=\[child=\{name=\"var_pcomplx\.complex_type\",exp=\"complex_type\",numchild=\"3\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"\}\],has_more=\"1\"")
 347
 348         # Test that -var-list-children lists children with all values
 349         self.runCmd("-var-list-children 1 var_complx 1 2")
 350         self.expect(
 351             "\^done,numchild=\"1\",children=\[child=\{name=\"var_complx\.inner\",exp=\"inner\",numchild=\"1\",type=\"complex_type::\(anonymous struct\)\",thread-id=\"1\",value=\"\{\.\.\.\}\",has_more=\"0\"\}\],has_more=\"1\"")
 352         self.runCmd("-var-list-children --all-values var_complx 1 2")
 353         self.expect(
 354             "\^done,numchild=\"1\",children=\[child=\{name=\"var_complx\.inner\",exp=\"inner\",numchild=\"1\",type=\"complex_type::\(anonymous struct\)\",thread-id=\"1\",value=\"\{\.\.\.\}\",has_more=\"0\"\}\],has_more=\"1\"")
 355         self.runCmd("-var-list-children --all-values var_complx_array 1 2")
 356         self.expect(
 357             "\^done,numchild=\"1\",children=\[child=\{name=\"var_complx_array\.\[1\]\",exp=\"\[1\]\",numchild=\"3\",type=\"complex_type\",thread-id=\"1\",value=\"\{\.\.\.\}\",has_more=\"0\"\}\],has_more=\"0\"")
 358         self.runCmd("-var-list-children --all-values var_pcomplx 1 2")
 359         self.expect(
 360             "\^done,numchild=\"1\",children=\[child={name=\"var_pcomplx\.complx\",exp=\"complx\",numchild=\"3\",type=\"complex_type\",thread-id=\"1\",value=\"\{\.\.\.\}\",has_more=\"0\"\}\],has_more=\"0\"")
 361
 362         # Test that -var-list-children lists children with simple values
 363         self.runCmd("-var-list-children 2 var_complx 2 4")
 364         self.expect(
 365             "\^done,numchild=\"1\",children=\[child=\{name=\"var_complx\.complex_ptr\",exp=\"complex_ptr\",numchild=\"3\",type=\"complex_type \*\",thread-id=\"1\",has_more=\"0\"\}\],has_more=\"0\"")
 366         self.runCmd("-var-list-children --simple-values var_complx 2 4")
 367         self.expect(
 368             "\^done,numchild=\"1\",children=\[child=\{name=\"var_complx\.complex_ptr\",exp=\"complex_ptr\",numchild=\"3\",type=\"complex_type \*\",thread-id=\"1\",has_more=\"0\"\}\],has_more=\"0\"")
 369         self.runCmd("-var-list-children --simple-values var_complx_array 2 4")
 370         self.expect("\^done,numchild=\"0\",has_more=\"0\"")
 371         self.runCmd("-var-list-children --simple-values var_pcomplx 2 4")
 372         self.expect("\^done,numchild=\"0\",has_more=\"0\"")
 373
 374         # Test that an invalid from is handled
 375         # FIXME: -1 is treated as unsigned int
 376         self.runCmd("-var-list-children 0 var_complx -1 0")
 377         #self.expect("\^error,msg=\"Command 'var-list-children'\. Variable children range invalid\"")
 378
 379         # Test that an invalid to is handled
 380         # FIXME: -1 is treated as unsigned int
 381         self.runCmd("-var-list-children 0 var_complx 0 -1")
 382         #self.expect("\^error,msg=\"Command 'var-list-children'\. Variable children range invalid\"")
 383
 384         # Test that a missing low-frame or high-frame is handled
 385         self.runCmd("-var-list-children 0 var_complx 0")
 386         self.expect(
 387             "\^error,msg=\"Command 'var-list-children'. Variable children range invalid\"")
 388
 389     @skipIfWindows  # llvm.org/pr24452: Get lldb-mi working on Windows
 390     @skipIfFreeBSD  # llvm.org/pr22411: Failure presumably due to known thread races
 391     @skipIfLinux  # llvm.org/pr22841: lldb-mi tests fail on all Linux buildbots
 392     def test_lldbmi_var_create_for_stl_types(self):
 393         """Test that 'lldb-mi --interpreter' print summary for STL types."""
 394
 395         self.spawnLldbMi(args=None)
 396
 397         # Load executable
 398         self.runCmd("-file-exec-and-symbols %s" % self.myexe)
 399         self.expect("\^done")
 400
 401         # Run to BP_gdb_set_show_print_char_array_as_string_test
 402         line = line_number('main.cpp', '// BP_cpp_stl_types_test')
 403         self.runCmd("-break-insert main.cpp:%d" % line)
 404         self.expect("\^done,bkpt={number=\"1\"")
 405         self.runCmd("-exec-run")
 406         self.expect("\^running")
 407         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 408
 409         # Test for std::string
 410         self.runCmd("-var-create - * std_string")
 411         self.expect(
 412             '\^done,name="var\d+",numchild="[0-9]+",value="\\\\"hello\\\\"",type="std::[\S]*?string",thread-id="1",has_more="0"')
 413
 414     @skipIfWindows  # llvm.org/pr24452: Get lldb-mi working on Windows
 415     @skipIfFreeBSD  # llvm.org/pr22411: Failure presumably due to known thread races
 416     @skipIfLinux  # llvm.org/pr22841: lldb-mi tests fail on all Linux buildbots
 417     def test_lldbmi_var_create_for_unnamed_objects(self):
 418         """Test that 'lldb-mi --interpreter' can expand unnamed structures and unions."""
 419
 420         self.spawnLldbMi(args=None)
 421
 422         # Load executable
 423         self.runCmd("-file-exec-and-symbols %s" % self.myexe)
 424         self.expect("\^done")
 425
 426         # Run to breakpoint
 427         line = line_number('main.cpp', '// BP_unnamed_objects_test')
 428         self.runCmd("-break-insert main.cpp:%d" % line)
 429         self.expect("\^done,bkpt={number=\"1\"")
 430         self.runCmd("-exec-run")
 431         self.expect("\^running")
 432         self.expect("\*stopped,reason=\"breakpoint-hit\"")
 433
 434         # Evaluate struct_with_unions type and its children
 435         self.runCmd("-var-create v0 * swu")
 436         self.expect(
 437             '\^done,name="v0",numchild="2",value="\{\.\.\.\}",type="struct_with_unions",thread-id="1",has_more="0"')
 438
 439         self.runCmd("-var-list-children v0")
 440
 441         # inspect the first unnamed union
 442         self.runCmd("-var-list-children v0.$0")
 443         self.runCmd("-var-evaluate-expression v0.$0.u_i")
 444         self.expect('\^done,value="1"')
 445
 446         # inspect the second unnamed union
 447         self.runCmd("-var-list-children v0.$1")
 448         self.runCmd("-var-evaluate-expression v0.$1.u1")
 449         self.expect('\^done,value="-1"')
 450         # inspect unnamed structure
 451         self.runCmd("-var-list-children v0.$1.$1")
 452         self.runCmd("-var-evaluate-expression v0.$1.$1.s1")
 453         self.expect('\^done,value="-1"')