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check_start.c
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check_start.c
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/* vi:set ts=4 sw=4 expandtab:
*
* Copyright 2016, Chris Leishman (http://github.com/cleishm)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "../config.h"
#include "../src/lib/cypher-parser.h"
#include "memstream.h"
#include <check.h>
#include <errno.h>
#include <unistd.h>
static cypher_parse_result_t *result;
static char *memstream_buffer;
static size_t memstream_size;
static FILE *memstream;
static void setup(void)
{
result = NULL;
memstream = open_memstream(&memstream_buffer, &memstream_size);
fputc('\n', memstream);
}
static void teardown(void)
{
cypher_parse_result_free(result);
fclose(memstream);
free(memstream_buffer);
}
START_TEST (parse_node_index_lookup)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n=node:index(foo = 'bar');",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 32);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
"@0 0..32 statement body=@1\n"
"@1 0..32 > query clauses=[@2]\n"
"@2 0..31 > > START points=[@3]\n"
"@3 6..31 > > > node index lookup @4 = node:@5(@6 = @7)\n"
"@4 6..7 > > > > identifier `n`\n"
"@5 13..18 > > > > index name `index`\n"
"@6 19..22 > > > > prop name `foo`\n"
"@7 25..30 > > > > string \"bar\"\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
ck_assert_ptr_eq(cypher_ast_start_get_predicate(start), NULL);
ck_assert_int_eq(cypher_ast_start_npoints(start), 1);
const cypher_astnode_t *lookup = cypher_ast_start_get_point(start, 0);
ck_assert_int_eq(cypher_astnode_type(lookup), CYPHER_AST_NODE_INDEX_LOOKUP);
const cypher_astnode_t *id =
cypher_ast_node_index_lookup_get_identifier(lookup);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_IDENTIFIER);
ck_assert_str_eq(cypher_ast_identifier_get_name(id), "n");
const cypher_astnode_t *index_name =
cypher_ast_node_index_lookup_get_index_name(lookup);
ck_assert_int_eq(cypher_astnode_type(index_name), CYPHER_AST_INDEX_NAME);
ck_assert_str_eq(cypher_ast_index_name_get_value(index_name), "index");
const cypher_astnode_t *prop_name =
cypher_ast_node_index_lookup_get_prop_name(lookup);
ck_assert_int_eq(cypher_astnode_type(prop_name), CYPHER_AST_PROP_NAME);
ck_assert_str_eq(cypher_ast_prop_name_get_value(prop_name), "foo");
const cypher_astnode_t *str =
cypher_ast_node_index_lookup_get_lookup(lookup);
ck_assert_int_eq(cypher_astnode_type(str), CYPHER_AST_STRING);
ck_assert_str_eq(cypher_ast_string_get_value(str), "bar");
}
END_TEST
START_TEST (parse_node_index_query)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n=node:index('bar');",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 26);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
"@0 0..26 statement body=@1\n"
"@1 0..26 > query clauses=[@2]\n"
"@2 0..25 > > START points=[@3]\n"
"@3 6..25 > > > node index query @4 = node:@5(@6)\n"
"@4 6..7 > > > > identifier `n`\n"
"@5 13..18 > > > > index name `index`\n"
"@6 19..24 > > > > string \"bar\"\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
ck_assert_ptr_eq(cypher_ast_start_get_predicate(start), NULL);
ck_assert_int_eq(cypher_ast_start_npoints(start), 1);
const cypher_astnode_t *iquery = cypher_ast_start_get_point(start, 0);
ck_assert_int_eq(cypher_astnode_type(iquery), CYPHER_AST_NODE_INDEX_QUERY);
const cypher_astnode_t *id =
cypher_ast_node_index_query_get_identifier(iquery);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_IDENTIFIER);
ck_assert_str_eq(cypher_ast_identifier_get_name(id), "n");
const cypher_astnode_t *index_name =
cypher_ast_node_index_query_get_index_name(iquery);
ck_assert_int_eq(cypher_astnode_type(index_name), CYPHER_AST_INDEX_NAME);
ck_assert_str_eq(cypher_ast_index_name_get_value(index_name), "index");
const cypher_astnode_t *str =
cypher_ast_node_index_query_get_query(iquery);
ck_assert_int_eq(cypher_astnode_type(str), CYPHER_AST_STRING);
ck_assert_str_eq(cypher_ast_string_get_value(str), "bar");
}
END_TEST
START_TEST (parse_node_id_lookup)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n=node(65, 78, 3, 0) // find nodes\nRETURN n;",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 50);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
" @0 0..50 statement body=@1\n"
" @1 0..50 > query clauses=[@2, @10]\n"
" @2 0..41 > > START points=[@3]\n"
" @3 6..26 > > > node id lookup @4 = node(@5, @6, @7, @8)\n"
" @4 6..7 > > > > identifier `n`\n"
" @5 13..15 > > > > integer 65\n"
" @6 17..19 > > > > integer 78\n"
" @7 21..22 > > > > integer 3\n"
" @8 24..25 > > > > integer 0\n"
" @9 29..40 > > > line_comment // find nodes\n"
"@10 41..49 > > RETURN projections=[@11]\n"
"@11 48..49 > > > projection expression=@12\n"
"@12 48..49 > > > > identifier `n`\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
ck_assert_ptr_eq(cypher_ast_start_get_predicate(start), NULL);
ck_assert_int_eq(cypher_ast_start_npoints(start), 1);
const cypher_astnode_t *lookup = cypher_ast_start_get_point(start, 0);
ck_assert_int_eq(cypher_astnode_type(lookup), CYPHER_AST_NODE_ID_LOOKUP);
const cypher_astnode_t *identifier =
cypher_ast_node_id_lookup_get_identifier(lookup);
ck_assert_int_eq(cypher_astnode_type(identifier), CYPHER_AST_IDENTIFIER);
ck_assert_str_eq(cypher_ast_identifier_get_name(identifier), "n");
ck_assert_int_eq(cypher_ast_node_id_lookup_nids(lookup), 4);
const cypher_astnode_t *id = cypher_ast_node_id_lookup_get_id(lookup, 0);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_INTEGER);
ck_assert_str_eq(cypher_ast_integer_get_valuestr(id), "65");
id = cypher_ast_node_id_lookup_get_id(lookup, 1);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_INTEGER);
ck_assert_str_eq(cypher_ast_integer_get_valuestr(id), "78");
id = cypher_ast_node_id_lookup_get_id(lookup, 2);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_INTEGER);
ck_assert_str_eq(cypher_ast_integer_get_valuestr(id), "3");
id = cypher_ast_node_id_lookup_get_id(lookup, 3);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_INTEGER);
ck_assert_str_eq(cypher_ast_integer_get_valuestr(id), "0");
ck_assert_ptr_eq(cypher_ast_node_id_lookup_get_id(lookup, 4), NULL);
}
END_TEST
START_TEST (parse_all_nodes_scan)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n = node(*)\nRETURN /* all nodes */ n;",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 43);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
"@0 0..43 statement body=@1\n"
"@1 0..43 > query clauses=[@2, @5]\n"
"@2 0..18 > > START points=[@3]\n"
"@3 6..17 > > > all nodes scan identifier=@4\n"
"@4 6..7 > > > > identifier `n`\n"
"@5 18..42 > > RETURN projections=[@7]\n"
"@6 27..38 > > > block_comment /* all nodes */\n"
"@7 41..42 > > > projection expression=@8\n"
"@8 41..42 > > > > identifier `n`\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
ck_assert_ptr_eq(cypher_ast_start_get_predicate(start), NULL);
ck_assert_int_eq(cypher_ast_start_npoints(start), 1);
const cypher_astnode_t *scan = cypher_ast_start_get_point(start, 0);
ck_assert_int_eq(cypher_astnode_type(scan), CYPHER_AST_ALL_NODES_SCAN);
const cypher_astnode_t *identifier =
cypher_ast_all_nodes_scan_get_identifier(scan);
ck_assert_int_eq(cypher_astnode_type(identifier), CYPHER_AST_IDENTIFIER);
ck_assert_str_eq(cypher_ast_identifier_get_name(identifier), "n");
}
END_TEST
START_TEST (parse_rel_index_lookup)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n=rel:index(foo = 'bar');",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 31);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
"@0 0..31 statement body=@1\n"
"@1 0..31 > query clauses=[@2]\n"
"@2 0..30 > > START points=[@3]\n"
"@3 6..30 > > > rel index lookup @4 = rel:@5(@6 = @7)\n"
"@4 6..7 > > > > identifier `n`\n"
"@5 12..17 > > > > index name `index`\n"
"@6 18..21 > > > > prop name `foo`\n"
"@7 24..29 > > > > string \"bar\"\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
ck_assert_ptr_eq(cypher_ast_start_get_predicate(start), NULL);
ck_assert_int_eq(cypher_ast_start_npoints(start), 1);
const cypher_astnode_t *lookup = cypher_ast_start_get_point(start, 0);
ck_assert_int_eq(cypher_astnode_type(lookup), CYPHER_AST_REL_INDEX_LOOKUP);
const cypher_astnode_t *id =
cypher_ast_rel_index_lookup_get_identifier(lookup);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_IDENTIFIER);
ck_assert_str_eq(cypher_ast_identifier_get_name(id), "n");
const cypher_astnode_t *index_name =
cypher_ast_rel_index_lookup_get_index_name(lookup);
ck_assert_int_eq(cypher_astnode_type(index_name), CYPHER_AST_INDEX_NAME);
ck_assert_str_eq(cypher_ast_index_name_get_value(index_name), "index");
const cypher_astnode_t *prop_name =
cypher_ast_rel_index_lookup_get_prop_name(lookup);
ck_assert_int_eq(cypher_astnode_type(prop_name), CYPHER_AST_PROP_NAME);
ck_assert_str_eq(cypher_ast_prop_name_get_value(prop_name), "foo");
const cypher_astnode_t *str =
cypher_ast_rel_index_lookup_get_lookup(lookup);
ck_assert_int_eq(cypher_astnode_type(str), CYPHER_AST_STRING);
ck_assert_str_eq(cypher_ast_string_get_value(str), "bar");
}
END_TEST
START_TEST (parse_rel_index_query)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n=rel:index('bar');",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 25);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
"@0 0..25 statement body=@1\n"
"@1 0..25 > query clauses=[@2]\n"
"@2 0..24 > > START points=[@3]\n"
"@3 6..24 > > > rel index query @4 = rel:@5(@6)\n"
"@4 6..7 > > > > identifier `n`\n"
"@5 12..17 > > > > index name `index`\n"
"@6 18..23 > > > > string \"bar\"\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
ck_assert_ptr_eq(cypher_ast_start_get_predicate(start), NULL);
ck_assert_int_eq(cypher_ast_start_npoints(start), 1);
const cypher_astnode_t *iquery = cypher_ast_start_get_point(start, 0);
ck_assert_int_eq(cypher_astnode_type(iquery), CYPHER_AST_REL_INDEX_QUERY);
const cypher_astnode_t *id =
cypher_ast_rel_index_query_get_identifier(iquery);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_IDENTIFIER);
ck_assert_str_eq(cypher_ast_identifier_get_name(id), "n");
const cypher_astnode_t *index_name =
cypher_ast_rel_index_query_get_index_name(iquery);
ck_assert_int_eq(cypher_astnode_type(index_name), CYPHER_AST_INDEX_NAME);
ck_assert_str_eq(cypher_ast_index_name_get_value(index_name), "index");
const cypher_astnode_t *str =
cypher_ast_rel_index_query_get_query(iquery);
ck_assert_int_eq(cypher_astnode_type(str), CYPHER_AST_STRING);
ck_assert_str_eq(cypher_ast_string_get_value(str), "bar");
}
END_TEST
START_TEST (parse_rel_id_lookup)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n=rel(65, 78, 3, 0) // find nodes\nRETURN n;",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 49);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
" @0 0..49 statement body=@1\n"
" @1 0..49 > query clauses=[@2, @10]\n"
" @2 0..40 > > START points=[@3]\n"
" @3 6..25 > > > rel id lookup @4 = rel(@5, @6, @7, @8)\n"
" @4 6..7 > > > > identifier `n`\n"
" @5 12..14 > > > > integer 65\n"
" @6 16..18 > > > > integer 78\n"
" @7 20..21 > > > > integer 3\n"
" @8 23..24 > > > > integer 0\n"
" @9 28..39 > > > line_comment // find nodes\n"
"@10 40..48 > > RETURN projections=[@11]\n"
"@11 47..48 > > > projection expression=@12\n"
"@12 47..48 > > > > identifier `n`\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
ck_assert_ptr_eq(cypher_ast_start_get_predicate(start), NULL);
ck_assert_int_eq(cypher_ast_start_npoints(start), 1);
const cypher_astnode_t *lookup = cypher_ast_start_get_point(start, 0);
ck_assert_int_eq(cypher_astnode_type(lookup), CYPHER_AST_REL_ID_LOOKUP);
const cypher_astnode_t *identifier =
cypher_ast_rel_id_lookup_get_identifier(lookup);
ck_assert_int_eq(cypher_astnode_type(identifier), CYPHER_AST_IDENTIFIER);
ck_assert_str_eq(cypher_ast_identifier_get_name(identifier), "n");
ck_assert_int_eq(cypher_ast_rel_id_lookup_nids(lookup), 4);
const cypher_astnode_t *id = cypher_ast_rel_id_lookup_get_id(lookup, 0);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_INTEGER);
ck_assert_str_eq(cypher_ast_integer_get_valuestr(id), "65");
id = cypher_ast_rel_id_lookup_get_id(lookup, 1);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_INTEGER);
ck_assert_str_eq(cypher_ast_integer_get_valuestr(id), "78");
id = cypher_ast_rel_id_lookup_get_id(lookup, 2);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_INTEGER);
ck_assert_str_eq(cypher_ast_integer_get_valuestr(id), "3");
id = cypher_ast_rel_id_lookup_get_id(lookup, 3);
ck_assert_int_eq(cypher_astnode_type(id), CYPHER_AST_INTEGER);
ck_assert_str_eq(cypher_ast_integer_get_valuestr(id), "0");
ck_assert_ptr_eq(cypher_ast_rel_id_lookup_get_id(lookup, 4), NULL);
}
END_TEST
START_TEST (parse_all_rels_scan)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n = rel(*)\nRETURN /* all rels */ n;",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 41);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
"@0 0..41 statement body=@1\n"
"@1 0..41 > query clauses=[@2, @5]\n"
"@2 0..17 > > START points=[@3]\n"
"@3 6..16 > > > all rels scan identifier=@4\n"
"@4 6..7 > > > > identifier `n`\n"
"@5 17..40 > > RETURN projections=[@7]\n"
"@6 26..36 > > > block_comment /* all rels */\n"
"@7 39..40 > > > projection expression=@8\n"
"@8 39..40 > > > > identifier `n`\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
ck_assert_ptr_eq(cypher_ast_start_get_predicate(start), NULL);
ck_assert_int_eq(cypher_ast_start_npoints(start), 1);
const cypher_astnode_t *scan = cypher_ast_start_get_point(start, 0);
ck_assert_int_eq(cypher_astnode_type(scan), CYPHER_AST_ALL_RELS_SCAN);
const cypher_astnode_t *identifier =
cypher_ast_all_rels_scan_get_identifier(scan);
ck_assert_int_eq(cypher_astnode_type(identifier), CYPHER_AST_IDENTIFIER);
ck_assert_str_eq(cypher_ast_identifier_get_name(identifier), "n");
}
END_TEST
START_TEST (parse_start_with_predicate)
{
struct cypher_input_position last = cypher_input_position_zero;
result = cypher_parse(
"START n = node(*) /* predicate */ WHERE n.foo > 1 RETURN n;",
&last, NULL, 0);
ck_assert_ptr_ne(result, NULL);
ck_assert_int_eq(last.offset, 59);
ck_assert(cypher_parse_result_fprint_ast(result, memstream, 0, NULL, 0) == 0);
fflush(memstream);
const char *expected = "\n"
" @0 0..59 statement body=@1\n"
" @1 0..59 > query clauses=[@2, @11]\n"
" @2 0..50 > > START points=[@3], WHERE=@6\n"
" @3 6..17 > > > all nodes scan identifier=@4\n"
" @4 6..7 > > > > identifier `n`\n"
" @5 20..31 > > > block_comment /* predicate */\n"
" @6 40..50 > > > comparison @7 > @10\n"
" @7 40..46 > > > > property @8.@9\n"
" @8 40..41 > > > > > identifier `n`\n"
" @9 42..45 > > > > > prop name `foo`\n"
"@10 48..49 > > > > integer 1\n"
"@11 50..58 > > RETURN projections=[@12]\n"
"@12 57..58 > > > projection expression=@13\n"
"@13 57..58 > > > > identifier `n`\n";
ck_assert_str_eq(memstream_buffer, expected);
const cypher_astnode_t *ast = cypher_parse_result_get_directive(result, 0);
ck_assert_int_eq(cypher_astnode_type(ast), CYPHER_AST_STATEMENT);
const cypher_astnode_t *query = cypher_ast_statement_get_body(ast);
ck_assert_int_eq(cypher_astnode_type(query), CYPHER_AST_QUERY);
const cypher_astnode_t *start = cypher_ast_query_get_clause(query, 0);
ck_assert_int_eq(cypher_astnode_type(start), CYPHER_AST_START);
const cypher_astnode_t *pred = cypher_ast_start_get_predicate(start);
ck_assert(cypher_astnode_instanceof(pred, CYPHER_AST_EXPRESSION));
ck_assert_int_eq(cypher_astnode_type(pred), CYPHER_AST_COMPARISON);
ck_assert_int_eq(cypher_ast_comparison_get_length(pred), 1);
const cypher_operator_t *o = cypher_ast_comparison_get_operator(pred, 0);
ck_assert_ptr_eq(o, CYPHER_OP_GT);
const cypher_astnode_t *l = cypher_ast_comparison_get_argument(pred, 0);
ck_assert_int_eq(cypher_astnode_type(l), CYPHER_AST_PROPERTY_OPERATOR);
const cypher_astnode_t *r = cypher_ast_comparison_get_argument(pred, 1);
ck_assert_int_eq(cypher_astnode_type(r), CYPHER_AST_INTEGER);
}
END_TEST
TCase* start_tcase(void)
{
TCase *tc = tcase_create("start");
tcase_add_checked_fixture(tc, setup, teardown);
tcase_add_test(tc, parse_node_index_lookup);
tcase_add_test(tc, parse_node_index_query);
tcase_add_test(tc, parse_node_id_lookup);
tcase_add_test(tc, parse_all_nodes_scan);
tcase_add_test(tc, parse_rel_index_lookup);
tcase_add_test(tc, parse_rel_index_query);
tcase_add_test(tc, parse_rel_id_lookup);
tcase_add_test(tc, parse_all_rels_scan);
tcase_add_test(tc, parse_start_with_predicate);
return tc;
}