gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-locus-generate-patch.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdiagnostics-generate-patch" } */
   3
   4 /* This is a collection of unittests for diagnostic_show_locus;
   5    see the overview in diagnostic_plugin_test_show_locus.c.
   6
   7    In particular, note the discussion of why we need a very long line here:
   8 01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
   9    and that we can't use macros in this file.  */
  10
  11 /* Unit test for rendering of insertion fixit hints
  12    (example taken from PR 62316).  */
  13
  14 void test_fixit_insert (void)
  15 {
  16 #if 0
  17    int a[2][2] = { 0, 1 , 2, 3 }; /* { dg-warning "insertion hints" } */
  18 #endif
  19 }
  20
  21 /* Unit test for rendering of "remove" fixit hints.  */
  22
  23 void test_fixit_remove (void)
  24 {
  25 #if 0
  26   int a;; /* { dg-warning "example of a removal hint" } */
  27 #endif
  28 }
  29
  30 /* Unit test for rendering of "replace" fixit hints.  */
  31
  32 void test_fixit_replace (void)
  33 {
  34 #if 0
  35   gtk_widget_showall (dlg); /* { dg-warning "example of a replacement hint" } */
  36 #endif
  37 }
  38
  39 /* Unit test for rendering of fix-it hints that add new lines.  */
  40
  41 void test_fixit_insert_newline (void)
  42 {
  43 #if 0
  44   switch (op)
  45     {
  46     case 'a':
  47       x = a;
  48     case 'b': /* { dg-warning "newline insertion" } */
  49       x = b;
  50     }
  51 #endif
  52 }
  53
  54 /* Unit test for mutually-exclusive suggestions.  */
  55
  56 void test_mutually_exclusive_suggestions (void)
  57 {
  58 #if 0
  59   original; /* { dg-warning "warning 1" } */
  60 /* { dg-warning "warning 2" "" { target *-*-* } .-1 } */
  61 /* We should not print the mutually-incompatible fix-it hints within
  62    the generated patch; they are not listed in the big expected
  63    multiline output below.  */
  64 #endif
  65 }
  66
  67 /* Unit tests for add_fixit_insert_formatted.  */
  68
  69 void test_add_fixit_insert_formatted_single_line (void)
  70 {
  71   {}
  72 }
  73
  74 void test_add_fixit_insert_formatted_multiline (void)
  75 {
  76   if (1)
  77     {
  78     }
  79 }
  80
  81
  82 /* Verify the output from -fdiagnostics-generate-patch.
  83    We expect a header, containing the filename.  This is the absolute path,
  84    so we can only capture it via regexps.  */
  85
  86 /* { dg-regexp "\\-\\-\\- .*" } */
  87 /* { dg-regexp "\\+\\+\\+ .*" } */
  88
  89 /* Next, we expect the diff itself.  */
  90 /* { dg-begin-multiline-output "" }
  91 @@ -14,7 +14,7 @@
  92  void test_fixit_insert (void)
  93  {
  94  #if 0
  95 -   int a[2][2] = { 0, 1 , 2, 3 };
  96 +   int a[2][2] = { {0, 1} , 2, 3 };
  97  #endif
  98  }
  99
 100 @@ -23,7 +23,7 @@
 101  void test_fixit_remove (void)
 102  {
 103  #if 0
 104 -  int a;;
 105 +  int a;
 106  #endif
 107  }
 108
 109 @@ -32,7 +32,7 @@
 110  void test_fixit_replace (void)
 111  {
 112  #if 0
 113 -  gtk_widget_showall (dlg);
 114 +  gtk_widget_show_all (dlg);
 115  #endif
 116  }
 117
 118 @@ -45,6 +45,7 @@
 119      {
 120      case 'a':
 121        x = a;
 122 +      break;
 123      case 'b':
 124        x = b;
 125      }
 126 @@ -68,7 +69,7 @@
 127
 128  void test_add_fixit_insert_formatted_single_line (void)
 129  {
 130 -  {}
 131 +  {INSERTED-CONTENT}
 132  }
 133
 134  void test_add_fixit_insert_formatted_multiline (void)
 135 @@ -76,6 +77,7 @@
 136    if (1)
 137      {
 138      }
 139 +  INSERTED-CONTENT
 140  }
 141
 142
 143    { dg-end-multiline-output "" } */