joepie91/pegjs
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Behavior specs cleanup: Improve sequence specs

Browse source
This commit is contained in:
David Majda 2015-01-24 20:02:06 +01:00
parent 548209b48b
commit b3828919e2
1 changed files with 18 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
spec/behavior/generated-parser-behavior.spec.js
View file

@ -770,16 +770,28 @@ describe("generated parser behavior", function() {
});
describe("sequence", function() {
it("matches correctly", function() {
var parser = PEG.buildParser('start = "a" "b" "c"', options);
describe("when all expressions match", function() {
it("returns an array of their match results", function() {
var parser = PEG.buildParser('start = "a" "b" "c"', options);
expect(parser).toParse("abc", ["a", "b", "c"]);
expect(parser).toParse("abc", ["a", "b", "c"]);
});
});
it("does not advance position on failure", function() {
var parser = PEG.buildParser('start = "a" "b" / "a"', options);
describe("when any expression doesn't match", function() {
it("reports match failure", function() {
var parser = PEG.buildParser('start = "a" "b" "c"', options);
expect(parser).toParse("a", "a");
expect(parser).toFailToParse("dbc");
expect(parser).toFailToParse("adc");
expect(parser).toFailToParse("abd");
});
it("resets parse position", function() {
var parser = PEG.buildParser('start = "a" "b" / "a"', options);
expect(parser).toParse("a", "a");
});
});
});