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void test_trace_check_compares<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_check_filters_layers<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 2&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_check_ignores_other_lines<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_ignores_trailing_whitespace<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_check_always_finds_empty_lines<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_check_treats_empty_layers_as_wildcards<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_check_multiple_lines_at_once<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 2&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo^Dbar^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_check_always_finds_empty_lines2<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;^D^D^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_orders_across_layers<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 2&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;qux&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo^Dbar^Dqux^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_orders_across_layers2<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 2&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;qux&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;foo^Dbar^Dqux^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_checks_ordering_spanning_multiple_layers<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;layer1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;layer2&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;layer1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;qux&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;layer1: foo^Dlayer2: bar^Dlayer1: qux^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_segments_within_layers<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 2&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  new_trace_frame<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">);</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;qux&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo^Dqux^D&quot;</span><span class="Delimiter">);</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo^D&quot;</span><span class="Delimiter">);</span>
  CHECK_TRACE_DOESNT_CONTAIN<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_checks_ordering_across_layers_and_frames<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 2&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  new_trace_frame<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">);</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;qux&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1/0: foo^Dtest layer 2: bar^Dtest layer 1: qux&quot;</span><span class="Delimiter">);</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1: foo^Dtest layer 2: bar^Dtest layer 1/1: qux&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void trace_test_fn<span class="Delimiter">(</span>int n<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  if <span class="Delimiter">(</span>n == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
  new_trace_frame<span class="Delimiter">(</span><span class="Constant">&quot;foo&quot;</span><span class="Delimiter">);</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;foo&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;before: &quot;</span> &lt;&lt; n<span class="Delimiter">;</span>
  trace_test_fn<span class="Delimiter">(</span>n-<span class="Constant">1</span><span class="Delimiter">);</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;foo&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;after: &quot;</span> &lt;&lt; n<span class="Delimiter">;</span>
<span class="Delimiter">}</span>

void test_trace_keeps_level_together<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;foo&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
  trace_test_fn<span class="Delimiter">(</span><span class="Constant">4</span><span class="Delimiter">);</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;foo&quot;</span><span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">&quot;before: 3^Dafter: 3^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_supports_multiple_layers<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 2&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;qux&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1,test layer 2&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo^Dbar^Dqux^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_supports_hierarchical_layers<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer/a&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;different layer/c&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo 2&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer/b&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  CHECK_TRACE_CONTENTS<span class="Delimiter">(</span><span class="Constant">&quot;test layer/&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo^Dbar^D&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_supports_count<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  CHECK_EQ<span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">),</span> <span class="Constant">2</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_trace_supports_count2<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">;</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;bar&quot;</span><span class="Delimiter">;</span>
  CHECK_EQ<span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">&quot;test layer 1&quot;</span><span class="Delimiter">),</span> <span class="Constant">2</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

<span class="Comment">// pending: DUMP tests</span>
<span class="Comment">// pending: readable_contents() adds newline if necessary.</span>
<span class="Comment">// pending: raise also prints to stderr.</span>
<span class="Comment">// pending: raise doesn't print to stderr if Hide_warnings is set.</span>
<span class="Comment">// pending: raise doesn't have to be saved if Hide_warnings is set, just printed.</span>
<span class="Comment">// pending: raise prints to stderr if Trace_stream is NULL.</span>
<span class="Comment">// pending: raise prints to stderr if Trace_stream is NULL even if Hide_warnings is set.</span>
<span class="Comment">// pending: raise &lt;&lt; ... die() doesn't die if Hide_warnings is set.</span>

^L

<span class="Comment">// can't check trace because trace methods call 'split'</span>

void test_split_returns_at_least_one_elem<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  vector&lt;string&gt; result = split<span class="Delimiter">(</span><span class="Constant">&quot;&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;,&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">1</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_split_returns_entire_input_when_no_delim<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  vector&lt;string&gt; result = split<span class="Delimiter">(</span><span class="Constant">&quot;abc&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;,&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">1</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_split_works<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  vector&lt;string&gt; result = split<span class="Delimiter">(</span><span class="Constant">&quot;abc,def&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;,&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">2</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> <span class="Constant">&quot;def&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_split_works2<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  vector&lt;string&gt; result = split<span class="Delimiter">(</span><span class="Constant">&quot;abc,def,ghi&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;,&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">3</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> <span class="Constant">&quot;def&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">),</span> <span class="Constant">&quot;ghi&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

void test_split_handles_multichar_delim<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  vector&lt;string&gt; result = split<span class="Delimiter">(</span><span class="Constant">&quot;abc,,def,,ghi&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;,,&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">3</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> <span class="Constant">&quot;def&quot;</span><span class="Delimiter">);</span>
  CHECK_EQ<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">),</span> <span class="Constant">&quot;ghi&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
</pre>
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