https://github.com/akkartik/mu/blob/main/linux/bootstrap/003trace.test.cc

      1 void test_trace_check_compares() {
      2   trace("test layer") << "foo" << end();
      3   CHECK_TRACE_CONTENTS("test layer: foo");
      4 }
      5
      6 void test_trace_check_ignores_other_layers() {
      7   trace("test layer 1") << "foo" << end();
      8   trace("test layer 2") << "bar" << end();
      9   CHECK_TRACE_CONTENTS("test layer 1: foo");
     10   CHECK_TRACE_DOESNT_CONTAIN("test layer 2: foo");
     11 }
     12
     13 void test_trace_check_ignores_leading_whitespace() {
     14   trace("test layer 1") << " foo" << end();
     15   CHECK_EQ(trace_count("test layer 1", /*too little whitespace*/"foo"), 1);
     16   CHECK_EQ(trace_count("test layer 1", /*too much whitespace*/"  foo"), 1);
     17 }
     18
     19 void test_trace_check_ignores_other_lines() {
     20   trace("test layer 1") << "foo" << end();
     21   trace("test layer 1") << "bar" << end();
     22   CHECK_TRACE_CONTENTS("test layer 1: foo");
     23 }
     24
     25 void test_trace_check_ignores_other_lines2() {
     26   trace("test layer 1") << "foo" << end();
     27   trace("test layer 1") << "bar" << end();
     28   CHECK_TRACE_CONTENTS("test layer 1: bar");
     29 }
     30
     31 void test_trace_ignores_trailing_whitespace() {
     32   trace("test layer 1") << "foo\n" << end();
     33   CHECK_TRACE_CONTENTS("test layer 1: foo");
     34 }
     35
     36 void test_trace_ignores_trailing_whitespace2() {
     37   trace("test layer 1") << "foo " << end();
     38   CHECK_TRACE_CONTENTS("test layer 1: foo");
     39 }
     40
     41 void test_trace_orders_across_layers() {
     42   trace("test layer 1") << "foo" << end();
     43   trace("test layer 2") << "bar" << end();
     44   trace("test layer 1") << "qux" << end();
     45   CHECK_TRACE_CONTENTS("test layer 1: foo\n"
     46                        "test layer 2: bar\n"
     47                        "test layer 1: qux\n");
     48 }
     49
     50 void test_trace_supports_count() {
     51   trace("test layer 1") << "foo" << end();
     52   trace("test layer 1") << "foo" << end();
     53   CHECK_EQ(trace_count("test layer 1", "foo"), 2);
     54 }
     55
     56 void test_trace_supports_count2() {
     57   trace("test layer 1") << "foo" << end();
     58   trace("test layer 1") << "bar" << end();
     59   CHECK_EQ(trace_count("test layer 1"), 2);
     60 }
     61
     62 void test_trace_count_ignores_trailing_whitespace() {
     63   trace("test layer 1") << "foo\n" << end();
     64   CHECK_EQ(trace_count("test layer 1", "foo"), 1);
     65 }
     66
     67 void test_trace_unescapes_newlines() {
     68   trace("test layer 1") << "f\no\no\n" << end();
     69   CHECK_TRACE_CONTENTS("test layer 1: f\\no\\no");
     70 }
     71
     72 // pending: DUMP tests
     73 // pending: readable_contents() adds newline if necessary.
     74 // pending: raise also prints to stderr.
     75 // pending: raise doesn't print to stderr if Hide_errors is set.
     76 // pending: warn doesn't print to stderr if Hide_errors is set.
     77 // pending: warn doesn't print to stderr if Hide_warnings is set.
     78 // pending: raise doesn't have to be saved if Hide_errors is set, just printed.
     79 // pending: raise prints to stderr if Trace_stream is NULL.
     80 // pending: raise prints to stderr if Trace_stream is NULL even if Hide_errors is set.
     81
     82 // can't check trace because trace methods call 'split'
     83
     84 void test_split_returns_at_least_one_elem() {
     85   vector<string> result = split("", ",");
     86   CHECK_EQ(result.size(), 1);
     87   CHECK_EQ(result.at(0), "");
     88 }
     89
     90 void test_split_returns_entire_input_when_no_delim() {
     91   vector<string> result = split("abc", ",");
     92   CHECK_EQ(result.size(), 1);
     93   CHECK_EQ(result.at(0), "abc");
     94 }
     95
     96 void test_split_works() {
     97   vector<string> result = split("abc,def", ",");
     98   CHECK_EQ(result.size(), 2);
     99   CHECK_EQ(result.at(0), "abc");
    100   CHECK_EQ(result.at(1), "def");
    101 }
    102
    103 void test_split_works2() {
    104   vector<string> result = split("abc,def,ghi", ",");
    105   CHECK_EQ(result.size(), 3);
    106   CHECK_EQ(result.at(0), "abc");
    107   CHECK_EQ(result.at(1), "def");
    108   CHECK_EQ(result.at(2), "ghi");
    109 }
    110
    111 void test_split_handles_multichar_delim() {
    112   vector<string> result = split("abc,,def,,ghi", ",,");
    113   CHECK_EQ(result.size(), 3);
    114   CHECK_EQ(result.at(0), "abc");
    115   CHECK_EQ(result.at(1), "def");
    116   CHECK_EQ(result.at(2), "ghi");
    117 }
    118
    119 void test_trim() {
    120   CHECK_EQ(trim(""), "");
    121   CHECK_EQ(trim(" "), "");
    122   CHECK_EQ(trim("  "), "");
    123   CHECK_EQ(trim("a"), "a");
    124   CHECK_EQ(trim(" a"), "a");
    125   CHECK_EQ(trim("  a"), "a");
    126   CHECK_EQ(trim("  ab"), "ab");
    127   CHECK_EQ(trim("a "), "a");
    128   CHECK_EQ(trim("a  "), "a");
    129   CHECK_EQ(trim("ab  "), "ab");
    130   CHECK_EQ(trim(" a "), "a");
    131   CHECK_EQ(trim("  a  "), "a");
    132   CHECK_EQ(trim("  ab  "), "ab");
    133 }