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Add test for an example found during fuzzing

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This commit is contained in:
Max Brunsfeld 2017-06-30 21:55:50 -07:00
parent f722923493
commit fcffd4b732
8 changed files with 111 additions and 40 deletions
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41
test/helpers/tree_helpers.cc
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@ -1,4 +1,6 @@
#include "bandit/bandit.h"
#include "helpers/tree_helpers.h"
#include "helpers/point_helpers.h"
#include "runtime/document.h"
#include "runtime/node.h"
#include <ostream>
@ -48,3 +50,42 @@ bool operator==(const std::vector<Tree *> &vec, const TreeArray &array) {
return false;
return true;
}
void assert_consistent_tree_sizes(TSNode node) {
size_t child_count = ts_node_child_count(node);
size_t start_byte = ts_node_start_byte(node);
size_t end_byte = ts_node_end_byte(node);
TSPoint start_point = ts_node_start_point(node);
TSPoint end_point = ts_node_end_point(node);
bool some_child_has_changes = false;
AssertThat(start_byte, !IsGreaterThan(end_byte));
AssertThat(start_point, !IsGreaterThan(end_point));
size_t last_child_end_byte = start_byte;
TSPoint last_child_end_point = start_point;
for (size_t i = 0; i < child_count; i++) {
TSNode child = ts_node_child(node, i);
size_t child_start_byte = ts_node_start_byte(child);
TSPoint child_start_point = ts_node_start_point(child);
AssertThat(child_start_byte, !IsLessThan(last_child_end_byte));
AssertThat(child_start_point, !IsLessThan(last_child_end_point));
assert_consistent_tree_sizes(child);
if (ts_node_has_changes(child))
some_child_has_changes = true;
last_child_end_byte = ts_node_end_byte(child);
last_child_end_point = ts_node_end_point(child);
}
if (child_count > 0) {
AssertThat(end_byte, !IsLessThan(last_child_end_byte));
AssertThat(end_point, !IsLessThan(last_child_end_point));
}
if (some_child_has_changes) {
AssertThat(ts_node_has_changes(node), IsTrue());
}
}

2
test/helpers/tree_helpers.h
View file

@ -13,4 +13,6 @@ std::ostream &operator<<(std::ostream &stream, const TSNode &node);
bool operator==(const TSNode &left, const TSNode &right);
bool operator==(const std::vector<Tree *> &right, const TreeArray &array);
void assert_consistent_tree_sizes(TSNode node);
#endif // HELPERS_TREE_HELPERS_H_