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