1cc7e32e2d
The parser is no longer hard-coded to skip whitespace. Tokens such as newlines, whose characters overlap with the separator characters, can now be correctly recognized.
60 lines
2 KiB
C++
60 lines
2 KiB
C++
#include "compiler_spec_helper.h"
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#include "compiler/rules/metadata.h"
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#include "compiler/build_tables/check_metadata.h"
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using namespace rules;
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using namespace build_tables;
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START_TEST
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describe("checking if rules have metadata", []() {
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MetadataValue value = MetadataValue(1 << 3);
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it("returns true for a compatible metadata rule", [&]() {
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auto rule = make_shared<Metadata>(sym("x"), MetadataValue(value | 1));
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AssertThat(check_metadata(rule, value), IsTrue());
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});
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it("returns false for an incompatible metadata rule", [&]() {
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auto rule = make_shared<Metadata>(sym("x"), MetadataValue(1 << 2));
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AssertThat(check_metadata(rule, value), IsFalse());
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});
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it("returns false for a non-metadata rule", [&]() {
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auto rule = sym("x");
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AssertThat(check_metadata(rule, value), IsFalse());
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});
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it("returns true for a compatible metadata rule preceded by rules that can be blank", [&]() {
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auto rule = seq({
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repeat(sym("x")),
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make_shared<Metadata>(sym("x"), MetadataValue(value | 1)),
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});
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AssertThat(check_metadata(rule, value), IsTrue());
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});
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it("returns true for a choice including a compatible metadata rule", [&]() {
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auto rule = choice({
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sym("x"),
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make_shared<Metadata>(sym("x"), MetadataValue(value | 1)),
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});
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AssertThat(check_metadata(rule, value), IsTrue());
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});
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it("returns true for a repetition containing a compatible metadata rule", [&]() {
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auto rule = repeat(make_shared<Metadata>(sym("x"), MetadataValue(value | 1)));
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AssertThat(check_metadata(rule, value), IsTrue());
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});
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it("returns true for a metadata rule preceded by rules that cannot be blank", [&]() {
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auto rule = seq({
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sym("x"),
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make_shared<Metadata>(sym("x"), MetadataValue(value | 1)),
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});
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AssertThat(check_metadata(rule, value), IsFalse());
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});
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});
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END_TEST
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