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

Jasmine: Convert semantic and code tests

Browse Source
redux
David Majda 12 years ago
parent f04096189f
commit 2bb25efa44
2 changed files with 59 additions and 178 deletions
Show Stats Download Patch File Download Diff File

59
spec/generated-parser.spec.js
Unescape Escape View File

@ -91,6 +91,65 @@ describe("generated parser", function() {
});
});
describe("semantic and code", function() {
varyAll(function(options) {
it("causes successful match by returning |true|", function() {
var parser = PEG.buildParser('start = &{ return true; }', options);
expect(parser).toParse("", "");
});
it("causes match failure by returning |false|", function() {
var parser = PEG.buildParser('start = &{ return false; }', options);
expect(parser).toFailToParse("");
});
it("can use label variables", function() {
var parser = PEG.buildParser(
'start = a:"a" &{ return a === "a"; }',
options
);
expect(parser).toParse("a", ["a", ""]);
});
it("can use the |offset| variable to get the current parse position", function() {
var parser = PEG.buildParser(
'start = "a" &{ return offset === 1; }',
options
);
expect(parser).toParse("a", ["a", ""]);
});
if (options.trackLineAndColumn) {
it("can use the |line| and |column| variables to get the current line and column", function() {
var parser = PEG.buildParser([
'{ var result; }',
'start = line (nl+ line)* { return result; }',
'line = thing (" "+ thing)*',
'thing = digit / mark',
'digit = [0-9]',
'mark = &{ result = [line, column]; return true; } "x"',
'nl = ("\\r" / "\\n" / "\\u2028" / "\\u2029")'
].join("\n"), options);
expect(parser).toParse("1\n2\n\n3\n\n\n4 5 x", [7, 5]);
/* Non-Unix newlines */
expect(parser).toParse("1\rx", [2, 1]); // Old Mac
expect(parser).toParse("1\r\nx", [2, 1]); // Windows
expect(parser).toParse("1\n\rx", [3, 1]); // mismatched
/* Strange newlines */
expect(parser).toParse("1\u2028x", [2, 1]); // line separator
expect(parser).toParse("1\u2029x", [2, 1]); // paragraph separator
});
}
});
});
describe("semantic not code", function() {
varyAll(function(options) {
it("causes successful match by returning |false|", function() {

178
test/compiler-test.js
Unescape Escape View File

@ -73,184 +73,6 @@ testWithVaryingTrackLineAndColumn("simple not", function(options) {
parses(posTestParser, "ac", ["a", "", "c"]);
});
test("semantic and (with trackLineAndColumn: false)", function() {
var options = { trackLineAndColumn: false };
var acceptingParser = PEG.buildParser(
'start = "a" &{ return true; } "b"',
options
);
parses(acceptingParser, "ab", ["a", "", "b"]);
var rejectingParser = PEG.buildParser(
'start = "a" &{ return false; } "b"',
options
);
doesNotParse(rejectingParser, "ab");
var singleElementUnlabeledParser = PEG.buildParser(
'start = "a" &{ return arguments.length === 1 && offset === 1; }',
options
);
parses(singleElementUnlabeledParser, "a", ["a", ""]);
var singleElementLabeledParser = PEG.buildParser([
'start = a:"a" &{',
' return arguments.length === 2',
' && offset === 1',
' && a === "a";',
' }'
].join("\n"), options);
parses(singleElementLabeledParser, "a", ["a", ""]);
var multiElementUnlabeledParser = PEG.buildParser(
'start = "a" "b" "c" &{ return arguments.length === 1 && offset === 3; }',
options
);
parses(multiElementUnlabeledParser, "abc", ["a", "b", "c", ""]);
var multiElementLabeledParser = PEG.buildParser([
'start = a:"a" "b" c:"c" &{',
' return arguments.length === 3',
' && offset === 3',
' && a === "a"',
' && c === "c";',
' }'
].join("\n"), options);
parses(multiElementLabeledParser, "abc", ["a", "b", "c", ""]);
var innerElementsUnlabeledParser = PEG.buildParser([
'start = "a"',
' ("b" "c" "d" &{ return arguments.length === 1 && offset === 4; })',
' "e"'
].join("\n"), options);
parses(innerElementsUnlabeledParser, "abcde", ["a", ["b", "c", "d", ""], "e"]);
var innerElementsLabeledParser = PEG.buildParser([
'start = "a"',
' (',
' b:"b" "c" d:"d" &{',
' return arguments.length === 3',
' && offset === 4',
' && b === "b"',
' && d === "d";',
' }',
' )',
' "e"'
].join("\n"), options);
parses(innerElementsLabeledParser, "abcde", ["a", ["b", "c", "d", ""], "e"]);
});
test("semantic and (with trackLineAndColumn: true)", function() {
var options = { trackLineAndColumn: true };
var acceptingParser = PEG.buildParser(
'start = "a" &{ return true; } "b"',
options
);
parses(acceptingParser, "ab", ["a", "", "b"]);
var rejectingParser = PEG.buildParser(
'start = "a" &{ return false; } "b"',
options
);
doesNotParse(rejectingParser, "ab");
var singleElementUnlabeledParser = PEG.buildParser([
'start = "a" &{',
' return arguments.length === 3',
' && offset === 1',
' && line === 1',
' && column === 2;',
' }'
].join("\n"), options);
parses(singleElementUnlabeledParser, "a", ["a", ""]);
var singleElementLabeledParser = PEG.buildParser([
'start = a:"a" &{',
' return arguments.length === 4',
' && offset === 1',
' && line === 1',
' && column === 2',
' && a === "a";',
' }'
].join("\n"), options);
parses(singleElementLabeledParser, "a", ["a", ""]);
var multiElementUnlabeledParser = PEG.buildParser([
'start = "a" "b" "c" &{',
' return arguments.length === 3',
' && offset === 3',
' && line === 1',
' && column === 4;',
' }'
].join("\n"), options);
parses(multiElementUnlabeledParser, "abc", ["a", "b", "c", ""]);
var multiElementLabeledParser = PEG.buildParser([
'start = a:"a" "b" c:"c" &{',
' return arguments.length === 5',
' && offset === 3',
' && line === 1',
' && column === 4',
' && a === "a"',
' && c === "c";',
' }'
].join("\n"), options);
parses(multiElementLabeledParser, "abc", ["a", "b", "c", ""]);
var innerElementsUnlabeledParser = PEG.buildParser([
'start = "a"',
' (',
' "b" "c" "d" &{',
' return arguments.length === 3',
' && offset === 4',
' && line === 1',
' && column === 5;',
' }',
' )',
' "e"'
].join("\n"), options);
parses(innerElementsUnlabeledParser, "abcde", ["a", ["b", "c", "d", ""], "e"]);
var innerElementsLabeledParser = PEG.buildParser([
'start = "a"',
' (',
' b:"b" "c" d:"d" &{',
' return arguments.length === 5',
' && offset === 4',
' && line === 1',
' && column === 5',
' && b === "b"',
' && d === "d";',
' }',
' )',
' "e"'
].join("\n"), options);
parses(innerElementsLabeledParser, "abcde", ["a", ["b", "c", "d", ""], "e"]);
var digitsParser = PEG.buildParser([
'{ var result; }',
'start = line (nl+ line)* { return result; }',
'line = thing (" "+ thing)*',
'thing = digit / mark',
'digit = [0-9]',
'mark = &{ result = [line, column]; return true; } "x"',
'nl = ("\\r" / "\\n" / "\\u2028" / "\\u2029")'
].join("\n"), options);
parses(digitsParser, "1\n2\n\n3\n\n\n4 5 x", [7, 5]);
/* Non-Unix newlines */
parses(digitsParser, "1\rx", [2, 1]); // Old Mac
parses(digitsParser, "1\r\nx", [2, 1]); // Windows
parses(digitsParser, "1\n\rx", [3, 1]); // mismatched
/* Strange newlines */
parses(digitsParser, "1\u2028x", [2, 1]); // line separator
parses(digitsParser, "1\u2029x", [2, 1]); // paragraph separator
});
testWithVaryingTrackLineAndColumn("initializer", function(options) {
var variableInActionParser = PEG.buildParser(
'{ a = 42; }; start = "a" { return a; }',

Write Preview
Loading…
Cancel
Save