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Behavior specs cleanup: Improve choice specs

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This commit is contained in:
David Majda 2015-01-24 20:04:49 +01:00
parent b3828919e2
commit fa70e70ddf
1 changed files with 15 additions and 6 deletions
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21
spec/behavior/generated-parser-behavior.spec.js
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@ -928,13 +928,22 @@ describe("generated parser behavior", function() {
});
describe("choice", function() {
it("matches correctly", function() {
var parser = PEG.buildParser('start = "a" / "b" / "c"', options);
describe("when any expression matches", function() {
it("returns its match result", function() {
var parser = PEG.buildParser('start = "a" / "b" / "c"', options);
expect(parser).toParse("a", "a");
expect(parser).toParse("b", "b");
expect(parser).toParse("c", "c");
expect(parser).toFailToParse("d");
expect(parser).toParse("a", "a");
expect(parser).toParse("b", "b");
expect(parser).toParse("c", "c");
});
});
describe("when all expressions don't match", function() {
it("reports match failure", function() {
var parser = PEG.buildParser('start = "a" / "b" / "c"', options);
expect(parser).toFailToParse("d");
});
});
});