67b33a615b
This is slightly slower than encoding the parse table in flow control, but allows the parser to inspect the parse table more flexibly. This is needed for incremental parsing.
79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
#include "runtime_spec_helper.h"
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#include "helpers/spy_reader.h"
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extern "C" ts_parser ts_parser_json();
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START_TEST
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describe("parsing", [&]() {
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ts_document *doc;
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SpyReader *reader;
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before_each([&]() {
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doc = ts_document_make();
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ts_document_set_parser(doc, ts_parser_json());
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reader = new SpyReader("{ \"key\": [1, 2] }", 5);
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ts_document_set_input(doc, reader->input);
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});
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after_each([&]() {
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ts_document_free(doc);
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delete reader;
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});
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it("parses the input", [&]() {
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AssertThat(string(ts_document_string(doc)), Equals(
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"(value "
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"(object "
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"(string) "
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"(value (array "
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"(value (number)) "
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"(value (number))))))"));
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});
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it("reads the entire input", [&]() {
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AssertThat(reader->chunks_read, Equals(vector<string>({
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"{ \"ke",
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"y\": [",
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"1, 2]",
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" }",
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""
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})));
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});
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describe("modifying the input", [&]() {
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before_each([&]() {
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size_t position(string("{ \"key\": [1, 2]").length());
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string inserted_text(", \"key2\": 4 ");
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reader->content.insert(position, inserted_text);
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ts_document_edit(doc, {
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.position = position,
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.bytes_removed = 0,
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.bytes_inserted = inserted_text.length()
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});
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});
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it("updates the parse tree", [&]() {
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AssertThat(string(ts_document_string(doc)), Equals(
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"(value "
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"(object "
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"(string) "
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"(value (array "
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"(value (number)) "
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"(value (number)))) "
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"(string) "
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"(value (number))))"
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));
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});
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it_skip("re-reads only the changed portion of the input", [&]() {
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AssertThat(reader->chunks_read, Equals(vector<string>({
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""
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})));
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});
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});
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});
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END_TEST
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