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<span class="Comment">//: Mu scenarios. This will get long, but these are the tests we want to</span>
<span class="Comment">//: support in this layer.</span>
<span class="Comment">//: You can use variable names in scenarios, but for the most part we'll use</span>
<span class="Comment">//: raw location numbers, because that lets us make assertions on memory.</span>
<span class="Comment">//: Tests should avoid abstraction as far as possible.</span>
<span class="Delimiter">:(scenarios run_mu_scenario)</span>
<span class="Delimiter">:(scenario scenario_block)</span>
scenario foo [
run [
<span class="Constant">1</span>:integer<span class="Special"> <- </span>copy <span class="Constant">13</span>:literal
]
memory-should-contain [
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">13</span>
]
]
<span class="Comment"># checks are inside scenario</span>
<span class="Delimiter">:(scenario scenario_multiple_blocks)</span>
scenario foo [
run [
<span class="Constant">1</span>:integer<span class="Special"> <- </span>copy <span class="Constant">13</span>:literal
]
memory-should-contain [
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">13</span>
]
run [
<span class="Constant">2</span>:integer<span class="Special"> <- </span>copy <span class="Constant">13</span>:literal
]
memory-should-contain [
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">13</span>
<span class="Constant">2</span><span class="Special"> <- </span><span class="Constant">13</span>
]
]
<span class="Delimiter">:(scenario scenario_check_memory_and_trace)</span>
scenario foo [
run [
<span class="Constant">1</span>:integer<span class="Special"> <- </span>copy <span class="Constant">13</span>:literal
trace [a]<span class="Delimiter">,</span> [a b c]
]
memory-should-contain [
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">13</span>
]
trace-should-contain [
a: a b c
]
trace-should-not-contain [
a: x y z
]
]
<span class="SalientComment">//:: Core data structure</span>
<span class="Delimiter">:(before "End Types")</span>
struct scenario <span class="Delimiter">{</span>
string name<span class="Delimiter">;</span>
string to_run<span class="Delimiter">;</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(before "End Globals")</span>
vector<scenario> Scenarios<span class="Delimiter">;</span>
<span class="SalientComment">//:: Parse the 'scenario' form.</span>
<span class="Comment">//: Simply store the text of the scenario.</span>
<span class="Delimiter">:(before "End Command Handlers")</span>
else if <span class="Delimiter">(</span>command == <span class="Constant">"scenario"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
Scenarios<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>parse_scenario<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
scenario parse_scenario<span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
scenario result<span class="Delimiter">;</span>
result<span class="Delimiter">.</span>name = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
skip_bracket<span class="Delimiter">(</span>in<span class="Delimiter">,</span> <span class="Constant">"'scenario' must begin with '['"</span><span class="Delimiter">);</span>
ostringstream buffer<span class="Delimiter">;</span>
slurp_until_matching_bracket<span class="Delimiter">(</span>in<span class="Delimiter">,</span> buffer<span class="Delimiter">);</span>
result<span class="Delimiter">.</span>to_run = buffer<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="SalientComment">//:: Run scenarios when we run 'mu test'.</span>
<span class="Comment">//: Treat the text of the scenario as a regular series of instructions.</span>
<span class="Delimiter">:(before "End Tests")</span>
time_t mu_time<span class="Delimiter">;</span> time<span class="Delimiter">(</span>&mu_time<span class="Delimiter">);</span>
cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">Mu tests: "</span> << ctime<span class="Delimiter">(</span>&mu_time<span class="Delimiter">);</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i < Scenarios<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//? cerr << Passed << '\n'; //? 1</span>
run_mu_scenario<span class="Delimiter">(</span>Scenarios[i]<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>Passed<span class="Delimiter">)</span> cerr << <span class="Constant">"."</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Globals")</span>
const scenario* Current_scenario = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">:(code)</span>
void run_mu_scenario<span class="Delimiter">(</span>const scenario& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Current_scenario = &s<span class="Delimiter">;</span>
bool not_already_inside_test = !Trace_stream<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>not_already_inside_test<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Trace_file = s<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
Trace_stream = new trace_stream<span class="Delimiter">;</span>
setup<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
run<span class="Delimiter">(</span><span class="Constant">"recipe "</span>+s<span class="Delimiter">.</span>name+<span class="Constant">" [ "</span> + s<span class="Delimiter">.</span>to_run + <span class="Constant">" ]"</span><span class="Delimiter">);</span>
if <span class="Delimiter">(</span>not_already_inside_test<span class="Delimiter">)</span> <span class="Delimiter">{</span>
teardown<span class="Delimiter">();</span>
ofstream fout<span class="Delimiter">((</span>Trace_dir+Trace_file<span class="Delimiter">).</span>c_str<span class="Delimiter">());</span>
fout << Trace_stream<span class="Delimiter">-></span>readable_contents<span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span>
fout<span class="Delimiter">.</span>close<span class="Delimiter">();</span>
delete Trace_stream<span class="Delimiter">;</span>
Trace_stream = <span class="Constant">NULL</span><span class="Delimiter">;</span>
Trace_file = <span class="Constant">""</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
Current_scenario = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="SalientComment">//:: The special instructions we want to support inside scenarios.</span>
<span class="Comment">//: In a compiler for the mu VM these will require more work.</span>
<span class="Comment">//: 'run' interprets a string as a set of instructions</span>
<span class="Delimiter">:(scenarios run)</span>
<span class="Delimiter">:(scenario run)</span>
<span class="CommentedCode">#? % Trace_stream->dump_layer = "all";</span>
recipe main [
run [
<span class="Constant">1</span>:integer<span class="Special"> <- </span>copy <span class="Constant">13</span>:literal
]
]
<span class="traceContains">+mem: storing 13 in location 1</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
RUN<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"run"</span>] = RUN<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case RUN: <span class="Delimiter">{</span>
<span class="CommentedCode">//? cout << "recipe " << current_instruction().ingredients[0].name << '\n'; //? 1</span>
ostringstream tmp<span class="Delimiter">;</span>
tmp << <span class="Constant">"recipe run"</span> << Next_recipe_number << <span class="Constant">" [ "</span> << current_instruction<span class="Delimiter">().</span>ingredients[<span class="Constant">0</span>]<span class="Delimiter">.</span>name << <span class="Constant">" ]"</span><span class="Delimiter">;</span>
<span class="CommentedCode">//? Show_rest_of_stream = true; //? 1</span>
vector<recipe_number> tmp_recipe = load<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
<span class="Comment">// Predefined Scenario Locals In Run.</span>
<span class="Comment">// End Predefined Scenario Locals In Run.</span>
transform_all<span class="Delimiter">();</span>
<span class="CommentedCode">//? cout << tmp_recipe[0] << ' ' << Recipe_number["main"] << '\n'; //? 1</span>
Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>push<span class="Delimiter">(</span>call<span class="Delimiter">(</span>tmp_recipe[<span class="Constant">0</span>]<span class="Delimiter">));</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// not done with caller; don't increment current_step_index()</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario run_multiple)</span>
recipe main [
run [
<span class="Constant">1</span>:integer<span class="Special"> <- </span>copy <span class="Constant">13</span>:literal
]
run [
<span class="Constant">2</span>:integer<span class="Special"> <- </span>copy <span class="Constant">13</span>:literal
]
]
<span class="traceContains">+mem: storing 13 in location 1</span>
<span class="traceContains">+mem: storing 13 in location 2</span>
<span class="Comment">//: 'memory-should-contain' raises warnings if specific locations aren't as expected</span>
<span class="Comment">//: Also includes some special support for checking strings.</span>
<span class="Delimiter">:(scenario memory_check)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
memory-should-contain [
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">13</span>
]
]
<span class="traceContains">+run: checking location 1</span>
<span class="traceContains">+warn: expected location 1 to contain 13 but saw 0</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
MEMORY_SHOULD_CONTAIN<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"memory-should-contain"</span>] = MEMORY_SHOULD_CONTAIN<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case MEMORY_SHOULD_CONTAIN: <span class="Delimiter">{</span>
<span class="CommentedCode">//? cout << current_instruction().ingredients[0].name << '\n'; //? 1</span>
check_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients[<span class="Constant">0</span>]<span class="Delimiter">.</span>name<span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
void check_memory<span class="Delimiter">(</span>const string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
in >> std::noskipws<span class="Delimiter">;</span>
set<index_t> locations_checked<span class="Delimiter">;</span>
while <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
string lhs = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>!is_number<span class="Delimiter">(</span>lhs<span class="Delimiter">))</span> <span class="Delimiter">{</span>
check_type<span class="Delimiter">(</span>lhs<span class="Delimiter">,</span> in<span class="Delimiter">);</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
int address = to_int<span class="Delimiter">(</span>lhs<span class="Delimiter">);</span>
skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
string _assign<span class="Delimiter">;</span> in >> _assign<span class="Delimiter">;</span> assert<span class="Delimiter">(</span>_assign == <span class="Constant">"<-"</span><span class="Delimiter">);</span>
skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
int value = <span class="Constant">0</span><span class="Delimiter">;</span> in >> value<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>locations_checked<span class="Delimiter">.</span>find<span class="Delimiter">(</span>address<span class="Delimiter">)</span> != locations_checked<span class="Delimiter">.</span>end<span class="Delimiter">())</span>
raise << <span class="Constant">"duplicate expectation for location "</span> << address << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
trace<span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"checking location "</span> << address<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>Memory[address] != value<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>Current_scenario<span class="Delimiter">)</span>
raise << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << Current_scenario<span class="Delimiter">-></span>name << <span class="Constant">": expected location "</span> << address << <span class="Constant">" to contain "</span> << value << <span class="Constant">" but saw "</span> << Memory[address] << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
else
raise << <span class="Constant">"expected location "</span> << address << <span class="Constant">" to contain "</span> << value << <span class="Constant">" but saw "</span> << Memory[address] << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
locations_checked<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>address<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
void check_type<span class="Delimiter">(</span>const string& lhs<span class="Delimiter">,</span> istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
reagent x<span class="Delimiter">(</span>lhs<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties[<span class="Constant">0</span>]<span class="Delimiter">.</span>second[<span class="Constant">0</span>] == <span class="Constant">"string"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
x<span class="Delimiter">.</span>set_value<span class="Delimiter">(</span>to_int<span class="Delimiter">(</span>x<span class="Delimiter">.</span>name<span class="Delimiter">));</span>
skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
string _assign = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>_assign == <span class="Constant">"<-"</span><span class="Delimiter">);</span>
skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
string literal = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
index_t address = x<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
<span class="Comment">// exclude quoting brackets</span>
assert<span class="Delimiter">(</span>literal[<span class="Constant">0</span>] == <span class="Constant">'['</span><span class="Delimiter">);</span> literal<span class="Delimiter">.</span>erase<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span>
assert<span class="Delimiter">(</span>literal[literal<span class="Delimiter">.</span>size<span class="Delimiter">()</span>-<span class="Constant">1</span>] == <span class="Constant">']'</span><span class="Delimiter">);</span> literal<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>literal<span class="Delimiter">.</span>size<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">);</span>
check_string<span class="Delimiter">(</span>address<span class="Delimiter">,</span> literal<span class="Delimiter">);</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
raise << <span class="Constant">"don't know how to check memory for "</span> << lhs << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
void check_string<span class="Delimiter">(</span>index_t address<span class="Delimiter">,</span> const string& literal<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"checking string length at "</span> << address<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>Memory[address] != static_cast<signed><span class="Delimiter">(</span>literal<span class="Delimiter">.</span>size<span class="Delimiter">()))</span>
raise << <span class="Constant">"expected location "</span> << address << <span class="Constant">" to contain length "</span> << literal<span class="Delimiter">.</span>size<span class="Delimiter">()</span> << <span class="Constant">" of string ["</span> << literal << <span class="Constant">"] but saw "</span> << Memory[address] << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
++address<span class="Delimiter">;</span> <span class="Comment">// now skip length</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i < literal<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"checking location "</span> << address+i<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>Memory[address+i] != literal[i]<span class="Delimiter">)</span>
raise << <span class="Constant">"expected location "</span> << <span class="Delimiter">(</span>address+i<span class="Delimiter">)</span> << <span class="Constant">" to contain "</span> << literal[i] << <span class="Constant">" but saw "</span> << Memory[address+i] << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario memory_check_multiple)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
memory-should-contain [
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">0</span>
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">0</span>
]
]
<span class="traceContains">+warn: duplicate expectation for location 1</span>
<span class="Delimiter">:(scenario memory_check_string_length)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
<span class="Constant">1</span>:integer<span class="Special"> <- </span>copy <span class="Constant">3</span>:literal
<span class="Constant">2</span>:integer<span class="Special"> <- </span>copy <span class="Constant">97</span>:literal <span class="Comment"># 'a'</span>
<span class="Constant">3</span>:integer<span class="Special"> <- </span>copy <span class="Constant">98</span>:literal <span class="Comment"># 'b'</span>
<span class="Constant">4</span>:integer<span class="Special"> <- </span>copy <span class="Constant">99</span>:literal <span class="Comment"># 'c'</span>
memory-should-contain [
<span class="Constant">1</span>:string<span class="Special"> <- </span>[ab]
]
]
<span class="traceContains">+warn: expected location 1 to contain length 2 of string [ab] but saw 3</span>
<span class="Delimiter">:(scenario memory_check_string)</span>
recipe main [
<span class="Constant">1</span>:integer<span class="Special"> <- </span>copy <span class="Constant">3</span>:literal
<span class="Constant">2</span>:integer<span class="Special"> <- </span>copy <span class="Constant">97</span>:literal <span class="Comment"># 'a'</span>
<span class="Constant">3</span>:integer<span class="Special"> <- </span>copy <span class="Constant">98</span>:literal <span class="Comment"># 'b'</span>
<span class="Constant">4</span>:integer<span class="Special"> <- </span>copy <span class="Constant">99</span>:literal <span class="Comment"># 'c'</span>
memory-should-contain [
<span class="Constant">1</span>:string<span class="Special"> <- </span>[abc]
]
]
<span class="traceContains">+run: checking string length at 1</span>
<span class="traceContains">+run: checking location 2</span>
<span class="traceContains">+run: checking location 3</span>
<span class="traceContains">+run: checking location 4</span>
<span class="Delimiter">:(code)</span>
<span class="Comment">//: 'trace-should-contain' is like the '+' lines in our scenarios so far</span>
<span class="Comment">// Like runs of contiguous '+' lines, order is important. The trace checks</span>
<span class="Comment">// that the lines are present *and* in the specified sequence. (There can be</span>
<span class="Comment">// other lines in between.)</span>
<span class="Delimiter">:(scenario trace_check_warns_on_failure)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
trace-should-contain [
a: b
a: d
]
]
<span class="traceContains">+warn: missing [b] in trace layer a</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
TRACE_SHOULD_CONTAIN<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"trace-should-contain"</span>] = TRACE_SHOULD_CONTAIN<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case TRACE_SHOULD_CONTAIN: <span class="Delimiter">{</span>
check_trace<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients[<span class="Constant">0</span>]<span class="Delimiter">.</span>name<span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Comment">// simplified version of check_trace_contents() that emits warnings rather</span>
<span class="Comment">// than just printing to stderr</span>
bool check_trace<span class="Delimiter">(</span>const string& expected<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
vector<pair<string<span class="Delimiter">,</span> string> > expected_lines = parse_trace<span class="Delimiter">(</span>expected<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
index_t curr_expected_line = <span class="Constant">0</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>vector<pair<string<span class="Delimiter">,</span> pair<int<span class="Delimiter">,</span> string> > >::iterator p = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>expected_lines[curr_expected_line]<span class="Delimiter">.</span>first != p<span class="Delimiter">-></span>first<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>expected_lines[curr_expected_line]<span class="Delimiter">.</span>second != p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>second<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Comment">// match</span>
++curr_expected_line<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_expected_line == expected_lines<span class="Delimiter">.</span>size<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
raise << <span class="Constant">"missing ["</span> << expected_lines[curr_expected_line]<span class="Delimiter">.</span>second << <span class="Constant">"] "</span>
<< <span class="Constant">"in trace layer "</span> << expected_lines[curr_expected_line]<span class="Delimiter">.</span>first << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
vector<pair<string<span class="Delimiter">,</span> string> > parse_trace<span class="Delimiter">(</span>const string& expected<span class="Delimiter">)</span> <span class="Delimiter">{</span>
vector<string> buf = split<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">);</span>
vector<pair<string<span class="Delimiter">,</span> string> > result<span class="Delimiter">;</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i < buf<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
buf[i] = trim<span class="Delimiter">(</span>buf[i]<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>buf[i]<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
index_t delim = buf[i]<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">": "</span><span class="Delimiter">);</span>
result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string><span class="Delimiter">(</span>buf[i]<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> delim<span class="Delimiter">),</span> buf[i]<span class="Delimiter">.</span>substr<span class="Delimiter">(</span>delim+<span class="Constant">2</span><span class="Delimiter">)));</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario trace_check_warns_on_failure_in_later_line)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
run [
trace [a]<span class="Delimiter">,</span> [b]
]
trace-should-contain [
a: b
a: d
]
]
<span class="traceContains">+warn: missing [d] in trace layer a</span>
<span class="Delimiter">:(scenario trace_check_passes_silently)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
run [
trace [a]<span class="Delimiter">,</span> [b]
]
trace-should-contain [
a: b
]
]
<span class="traceAbsent">-warn: missing [b] in trace layer a</span>
<span class="Comment">//: 'trace-should-not-contain' is like the '-' lines in our scenarios so far</span>
<span class="Comment">//: Each trace line is separately checked for absense. Order is *not*</span>
<span class="Comment">//: important, so you can't say things like "B should not exist after A."</span>
<span class="Delimiter">:(scenario trace_negative_check_warns_on_failure)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
run [
trace [a]<span class="Delimiter">,</span> [b]
]
trace-should-not-contain [
a: b
]
]
<span class="traceContains">+warn: unexpected [b] in trace layer a</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
TRACE_SHOULD_NOT_CONTAIN<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"trace-should-not-contain"</span>] = TRACE_SHOULD_NOT_CONTAIN<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case TRACE_SHOULD_NOT_CONTAIN: <span class="Delimiter">{</span>
check_trace_missing<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients[<span class="Constant">0</span>]<span class="Delimiter">.</span>name<span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Comment">// simplified version of check_trace_contents() that emits warnings rather</span>
<span class="Comment">// than just printing to stderr</span>
bool check_trace_missing<span class="Delimiter">(</span>const string& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span>
vector<pair<string<span class="Delimiter">,</span> string> > lines = parse_trace<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i < lines<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span>lines[i]<span class="Delimiter">.</span>first<span class="Delimiter">,</span> lines[i]<span class="Delimiter">.</span>second<span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << <span class="Constant">"unexpected ["</span> << lines[i]<span class="Delimiter">.</span>second << <span class="Constant">"] in trace layer "</span> << lines[i]<span class="Delimiter">.</span>first << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario trace_negative_check_passes_silently)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
trace-should-not-contain [
a: b
]
]
<span class="traceAbsent">-warn: unexpected [b] in trace layer a</span>
<span class="Delimiter">:(scenario trace_negative_check_warns_on_any_unexpected_line)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
run [
trace [a]<span class="Delimiter">,</span> [d]
]
trace-should-not-contain [
a: b
a: d
]
]
<span class="traceContains">+warn: unexpected [d] in trace layer a</span>
<span class="SalientComment">//:: Helpers</span>
<span class="Delimiter">:(code)</span>
<span class="Comment">// just for the scenarios running scenarios in C++ layers</span>
void run_mu_scenario<span class="Delimiter">(</span>const string& form<span class="Delimiter">)</span> <span class="Delimiter">{</span>
istringstream in<span class="Delimiter">(</span>form<span class="Delimiter">);</span>
in >> std::noskipws<span class="Delimiter">;</span>
string _scenario = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span class="CommentedCode">//? cout << _scenario << '\n'; //? 1</span>
assert<span class="Delimiter">(</span>_scenario == <span class="Constant">"scenario"</span><span class="Delimiter">);</span>
scenario s = parse_scenario<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
run_mu_scenario<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
void slurp_until_matching_bracket<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
int brace_depth = <span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// just scanned '['</span>
char c<span class="Delimiter">;</span>
while <span class="Delimiter">(</span>in >> c<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> ++brace_depth<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> --brace_depth<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>brace_depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// drop final ']'</span>
out << c<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Comment">// see tests for this function in tangle/030tangle.test.cc</span>
string trim<span class="Delimiter">(</span>const string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
string::const_iterator first = s<span class="Delimiter">.</span>begin<span class="Delimiter">();</span>
while <span class="Delimiter">(</span>first != s<span class="Delimiter">.</span>end<span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*first<span class="Delimiter">))</span>
++first<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>first == s<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span>
string::const_iterator last = --s<span class="Delimiter">.</span>end<span class="Delimiter">();</span>
while <span class="Delimiter">(</span>last != s<span class="Delimiter">.</span>begin<span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*last<span class="Delimiter">))</span>
--last<span class="Delimiter">;</span>
++last<span class="Delimiter">;</span>
<span class="Identifier">return</span> string<span class="Delimiter">(</span>first<span class="Delimiter">,</span> last<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
</pre>
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