91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
#include "runtime/runtime_spec_helper.h"
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#include "runtime/tree.h"
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START_TEST
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enum {
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cat = 2,
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dog = 3,
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pig = 4,
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};
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static const char *names[] = { "error", "end", "cat", "dog", "pig" };
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describe("trees", []() {
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TSTree *tree1, *tree2, *parent1;
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before_each([&]() {
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tree1 = ts_tree_make_leaf(cat, 5, 2, 0);
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tree2 = ts_tree_make_leaf(cat, 3, 1, 0);
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parent1 = ts_tree_make_node(dog, 2, tree_array({
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tree1, tree2, // children
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}), 0);
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});
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after_each([&]() {
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ts_tree_release(tree1);
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ts_tree_release(tree2);
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ts_tree_release(parent1);
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});
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describe("making a parent node", [&]() {
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it("computes its size based on its child nodes", [&]() {
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AssertThat(parent1->size, Equals<size_t>(9));
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});
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it("computes its offset based on its first child", [&]() {
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AssertThat(parent1->offset, Equals<size_t>(2));
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});
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});
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describe("equality", [&]() {
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it("returns true for identical trees", [&]() {
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TSTree *tree1_copy = ts_tree_make_leaf(cat, 5, 2, 0);
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AssertThat(ts_tree_equals(tree1, tree1_copy), Equals(1));
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TSTree *tree2_copy = ts_tree_make_leaf(cat, 3, 1, 0);
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AssertThat(ts_tree_equals(tree2, tree2_copy), Equals(1));
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TSTree *parent2 = ts_tree_make_node(dog, 2, tree_array({
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tree1_copy, tree2_copy,
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}), 0);
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AssertThat(ts_tree_equals(parent1, parent2), Equals(1));
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ts_tree_release(tree1_copy);
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ts_tree_release(tree2_copy);
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ts_tree_release(parent2);
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});
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it("returns false for trees with different symbols", [&]() {
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TSTree *different_tree = ts_tree_make_leaf(pig, 0, 0, 0);
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AssertThat(ts_tree_equals(tree1, different_tree), Equals(0));
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ts_tree_release(different_tree);
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});
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it("returns false for trees with different children", [&]() {
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TSTree *different_tree = ts_tree_make_leaf(pig, 0, 0, 0);
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TSTree *different_parent = ts_tree_make_node(dog, 2, tree_array({
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different_tree, different_tree,
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}), 0);
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AssertThat(ts_tree_equals(different_parent, parent1), Equals(0));
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AssertThat(ts_tree_equals(parent1, different_parent), Equals(0));
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ts_tree_release(different_tree);
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ts_tree_release(different_parent);
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});
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});
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describe("serialization", [&]() {
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it("returns a readable string", [&]() {
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auto string1 = ts_tree_string(tree1, names);
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AssertThat(string(string1), Equals("(cat)"));
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free(string1);
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auto string2 = ts_tree_string(parent1, names);
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AssertThat(string(string2), Equals("(dog (cat) (cat))"));
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free(string2);
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});
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});
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});
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END_TEST
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