Merge pull request #385 from gagern/testErrors
Added unit tests for error messages
This commit is contained in:
Kevin Barabash
commit
5f275aa9c1
345
test/errors-spec.js
Normal file
345
test/errors-spec.js
Normal file
|
|
@ -0,0 +1,345 @@
|
|||
/* global beforeEach: false */
|
||||
/* global jasmine: false */
|
||||
/* global expect: false */
|
||||
/* global it: false */
|
||||
/* global describe: false */
|
||||
|
||||
var parseTree = require("../src/parseTree");
|
||||
var Settings = require("../src/Settings");
|
||||
|
||||
var defaultSettings = new Settings({});
|
||||
|
||||
beforeEach(function() {
|
||||
jasmine.addMatchers({
|
||||
toFailWithParseError: function(util, customEqualityTesters) {
|
||||
var prefix = "KaTeX parse error: ";
|
||||
return {
|
||||
compare: function(actual, expected) {
|
||||
try {
|
||||
parseTree(actual, defaultSettings);
|
||||
return {
|
||||
pass: false,
|
||||
message: "'" + actual + "' parsed without error"
|
||||
};
|
||||
} catch (e) {
|
||||
if (expected === undefined) {
|
||||
return {
|
||||
pass: true,
|
||||
message: "'" + actual + "' parsed with error"
|
||||
};
|
||||
}
|
||||
var msg = e.message;
|
||||
var exp = prefix + expected;
|
||||
if (msg === exp) {
|
||||
return {
|
||||
pass: true,
|
||||
message: "'" + actual + "'" +
|
||||
" parsed with error '" + expected + "'"
|
||||
};
|
||||
} else if (msg.slice(0, 19) === prefix) {
|
||||
return {
|
||||
pass: false,
|
||||
message: "'" + actual + "'" +
|
||||
" parsed with error '" + msg.slice(19) +
|
||||
"' but expected '" + expected + "'"
|
||||
};
|
||||
} else {
|
||||
return {
|
||||
pass: false,
|
||||
message: "'" + actual + "'" +
|
||||
" caused error '" + msg +
|
||||
"' but expected '" + exp + "'"
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
describe("Parser:", function() {
|
||||
|
||||
describe("#handleInfixNodes", function() {
|
||||
// TODO: The position information here is broken, should be fixed.
|
||||
it("rejects repeated infix operators", function() {
|
||||
expect("1\\over 2\\over 3").toFailWithParseError(
|
||||
"only one infix operator per group at position -1: " +
|
||||
"1\\over 2\\over ");
|
||||
});
|
||||
it("rejects conflicting infix operators", function() {
|
||||
expect("1\\over 2\\choose 3").toFailWithParseError(
|
||||
"only one infix operator per group at position -1: " +
|
||||
"1\\over 2\\choos");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#handleSupSubscript", function() {
|
||||
it("rejects ^ at end of group", function() {
|
||||
expect("{1^}").toFailWithParseError(
|
||||
"Expected group after '^' at position 3: {1^̲}");
|
||||
});
|
||||
it("rejects _ at end of input", function() {
|
||||
expect("1_").toFailWithParseError(
|
||||
"Expected group after '_' at position 2: 1_̲");
|
||||
});
|
||||
it("rejects \\sqrt as argument to ^", function() {
|
||||
expect("1^\\sqrt{2}").toFailWithParseError(
|
||||
"Got function '\\sqrt' with no arguments as superscript" +
|
||||
" at position 2: 1^̲\\sqrt{2}");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#parseAtom", function() {
|
||||
// TODO: The positions in the following error messages appear to be
|
||||
// off by one, i.e. they should be one character later.
|
||||
it("rejects \\limits without operator", function() {
|
||||
expect("\\alpha\\limits\\omega").toFailWithParseError(
|
||||
"Limit controls must follow a math operator" +
|
||||
" at position 6: \\alpha̲\\limits\\omega");
|
||||
});
|
||||
it("rejects \\limits at the beginning of the input", function() {
|
||||
expect("\\limits\\omega").toFailWithParseError(
|
||||
"Limit controls must follow a math operator" +
|
||||
" at position 0: ̲\\limits\\omega");
|
||||
});
|
||||
it("rejects double superscripts", function() {
|
||||
expect("1^2^3").toFailWithParseError(
|
||||
"Double superscript at position 3: 1^2̲^3");
|
||||
expect("1^{2+3}_4^5").toFailWithParseError(
|
||||
"Double superscript at position 9: 1^{2+3}_4̲^5");
|
||||
});
|
||||
it("rejects double subscripts", function() {
|
||||
expect("1_2_3").toFailWithParseError(
|
||||
"Double subscript at position 3: 1_2̲_3");
|
||||
expect("1_{2+3}^4_5").toFailWithParseError(
|
||||
"Double subscript at position 9: 1_{2+3}^4̲_5");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#parseImplicitGroup", function() {
|
||||
it("reports unknown environments", function() {
|
||||
expect("\\begin{foo}bar\\end{foo}").toFailWithParseError(
|
||||
"No such environment: foo at position 11:" +
|
||||
" \\begin{foo}̲bar\\end{foo}");
|
||||
});
|
||||
it("reports mismatched environments", function() {
|
||||
expect("\\begin{pmatrix}1&2\\\\3&4\\end{bmatrix}+5")
|
||||
.toFailWithParseError(
|
||||
"Mismatch: \\begin{pmatrix} matched by \\end{bmatrix}");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#parseFunction", function() {
|
||||
it("rejects math-mode functions in text mode", function() {
|
||||
// TODO: The position info is missing here
|
||||
expect("\\text{\\sqrt2 is irrational}").toFailWithParseError(
|
||||
"Can't use function '\\sqrt' in text mode");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#parseArguments", function() {
|
||||
it("complains about missing argument at end of input", function() {
|
||||
expect("2\\sqrt").toFailWithParseError(
|
||||
"Expected group after '\\sqrt' at position 6: 2\\sqrt̲");
|
||||
});
|
||||
it("complains about missing argument at end of group", function() {
|
||||
expect("1^{2\\sqrt}").toFailWithParseError(
|
||||
"Expected group after '\\sqrt' at position 9: 1^{2\\sqrt̲}");
|
||||
});
|
||||
it("complains about functions as arguments to others", function() {
|
||||
// TODO: The position looks pretty wrong here
|
||||
expect("\\sqrt\\over2").toFailWithParseError(
|
||||
"Got function '\\over' as argument to '\\sqrt'" +
|
||||
" at position 9: \\sqrt\\ove̲r2");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#parseArguments", function() {
|
||||
it("complains about missing argument at end of input", function() {
|
||||
expect("2\\sqrt").toFailWithParseError(
|
||||
"Expected group after '\\sqrt' at position 6: 2\\sqrt̲");
|
||||
});
|
||||
it("complains about missing argument at end of group", function() {
|
||||
expect("1^{2\\sqrt}").toFailWithParseError(
|
||||
"Expected group after '\\sqrt' at position 9: 1^{2\\sqrt̲}");
|
||||
});
|
||||
it("complains about functions as arguments to others", function() {
|
||||
// TODO: The position looks pretty wrong here
|
||||
expect("\\sqrt\\over2").toFailWithParseError(
|
||||
"Got function '\\over' as argument to '\\sqrt'" +
|
||||
" at position 9: \\sqrt\\ove̲r2");
|
||||
});
|
||||
});
|
||||
|
||||
});
|
||||
|
||||
describe("Parser.expect calls:", function() {
|
||||
|
||||
describe("#parseInput expecting EOF", function() {
|
||||
it("complains about extra }", function() {
|
||||
expect("{1+2}}").toFailWithParseError(
|
||||
"Expected 'EOF', got '}' at position 6: {1+2}}̲");
|
||||
});
|
||||
it("complains about extra \\end", function() {
|
||||
expect("x\\end{matrix}").toFailWithParseError(
|
||||
"Expected 'EOF', got '\\end' at position 5:" +
|
||||
" x\\end̲{matrix}");
|
||||
});
|
||||
it("complains about top-level \\\\", function() {
|
||||
expect("1\\\\2").toFailWithParseError(
|
||||
"Expected 'EOF', got '\\\\' at position 3: 1\\\\̲2");
|
||||
});
|
||||
it("complains about top-level &", function() {
|
||||
expect("1&2").toFailWithParseError(
|
||||
"Expected 'EOF', got '&' at position 2: 1&̲2");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#parseImplicitGroup expecting \\right", function() {
|
||||
it("rejects missing \\right", function() {
|
||||
expect("\\left(1+2)").toFailWithParseError(
|
||||
"Expected '\\right', got 'EOF' at position 10:" +
|
||||
" \\left(1+2)̲");
|
||||
});
|
||||
it("rejects incorrectly scoped \\right", function() {
|
||||
expect("{\\left(1+2}\\right)").toFailWithParseError(
|
||||
"Expected '\\right', got '}' at position 11:" +
|
||||
" {\\left(1+2}̲\\right)");
|
||||
});
|
||||
});
|
||||
|
||||
// Can't test the expectation for \end after an environment
|
||||
// since all existing arrays use parseArray which has its own expectation.
|
||||
|
||||
describe("#parseSpecialGroup expecting braces", function() {
|
||||
it("complains about missing { for color", function() {
|
||||
expect("\\color#ffffff{text}").toFailWithParseError(
|
||||
"Expected '{', got '#' at position 7:" +
|
||||
" \\color#̲ffffff{text}");
|
||||
});
|
||||
it("complains about missing { for size", function() {
|
||||
expect("\\rule{1em}[2em]").toFailWithParseError(
|
||||
"Expected '{', got '[' at position 11: \\rule{1em}[̲2em]");
|
||||
});
|
||||
// Can't test for the [ of an optional group since it's optional
|
||||
it("complains about missing } for color", function() {
|
||||
expect("\\color{#ffffff {text}").toFailWithParseError(
|
||||
"Expected '}', got '{' at position 16:" +
|
||||
" color{#ffffff {̲text}");
|
||||
});
|
||||
it("complains about missing ] for size", function() {
|
||||
expect("\\rule[1em{2em}{3em}").toFailWithParseError(
|
||||
"Expected ']', got '{' at position 10:" +
|
||||
" \\rule[1em{̲2em}{3em}");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#parseGroup expecting }", function() {
|
||||
it("at end of file", function() {
|
||||
expect("\\sqrt{2").toFailWithParseError(
|
||||
"Expected '}', got 'EOF' at position 7: \\sqrt{2̲");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#parseOptionalGroup expecting ]", function() {
|
||||
it("at end of file", function() {
|
||||
expect("\\sqrt[3").toFailWithParseError(
|
||||
"Expected ']', got 'EOF' at position 7: \\sqrt[3̲");
|
||||
});
|
||||
it("before group", function() {
|
||||
expect("\\sqrt[3{2}").toFailWithParseError(
|
||||
"Expected ']', got 'EOF' at position 10: \\sqrt[3{2}̲");
|
||||
});
|
||||
});
|
||||
|
||||
});
|
||||
|
||||
describe("environments.js:", function() {
|
||||
|
||||
describe("parseArray", function() {
|
||||
it("rejects missing \\end", function() {
|
||||
expect("\\begin{matrix}1").toFailWithParseError(
|
||||
"Expected & or \\\\ or \\end at position 15:" +
|
||||
" \\begin{matrix}1̲");
|
||||
});
|
||||
it("rejects incorrectly scoped \\end", function() {
|
||||
expect("{\\begin{matrix}1}\\end{matrix}").toFailWithParseError(
|
||||
"Expected & or \\\\\ or \\end at position 17:" +
|
||||
" begin{matrix}1}̲\\end{matrix}");
|
||||
});
|
||||
});
|
||||
|
||||
describe("array environment", function() {
|
||||
it("rejects unknown column types", function() {
|
||||
// TODO: The error position here looks strange
|
||||
expect("\\begin{array}{cba}\\end{array}").toFailWithParseError(
|
||||
"Unknown column alignment: b at position 18:" +
|
||||
" gin{array}{cba}̲\\end{array}");
|
||||
});
|
||||
});
|
||||
|
||||
});
|
||||
|
||||
describe("functions.js:", function() {
|
||||
|
||||
describe("delimiter functions", function() {
|
||||
it("reject invalid opening delimiters", function() {
|
||||
expect("\\bigl 1 + 2 \\bigr").toFailWithParseError(
|
||||
"Invalid delimiter: '1' after '\\bigl' at position 7:" +
|
||||
" \\bigl 1̲ + 2 \\bigr");
|
||||
});
|
||||
it("reject invalid closing delimiters", function() {
|
||||
expect("\\bigl(1+2\\bigr=3").toFailWithParseError(
|
||||
"Invalid delimiter: '=' after '\\bigr' at position 15:" +
|
||||
" \\bigl(1+2\\bigr=̲3");
|
||||
});
|
||||
});
|
||||
|
||||
describe("\\begin and \\end", function() {
|
||||
it("reject invalid environment names", function() {
|
||||
expect("\\begin{foobar}\\end{foobar}").toFailWithParseError(
|
||||
"No such environment: foobar at position 14:" +
|
||||
" \\begin{foobar}̲\\end{foobar}");
|
||||
});
|
||||
});
|
||||
|
||||
});
|
||||
|
||||
describe("Lexer:", function() {
|
||||
|
||||
describe("#_innerLex", function() {
|
||||
it("rejects lone surrogate char", function() {
|
||||
expect("\udcba").toFailWithParseError(
|
||||
"Unexpected character: '\udcba' at position 0:" +
|
||||
" \u0332\udcba");
|
||||
});
|
||||
it("rejects lone backslash at end of input", function() {
|
||||
expect("\\").toFailWithParseError(
|
||||
"Unexpected character: '\\' at position 0: ̲\\");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#_innerLexColor", function() {
|
||||
it("reject hex notation without #", function() {
|
||||
expect("\\color{1a2b3c}{foo}").toFailWithParseError(
|
||||
"Invalid color at position 7: \\color{̲1a2b3c}{foo}");
|
||||
});
|
||||
});
|
||||
|
||||
describe("#_innerLexSize", function() {
|
||||
it("reject size without unit", function() {
|
||||
expect("\\rule{0}{2em}").toFailWithParseError(
|
||||
"Invalid size at position 6: \\rule{̲0}{2em}");
|
||||
});
|
||||
it("reject size with bogus unit", function() {
|
||||
expect("\\rule{1au}{2em}").toFailWithParseError(
|
||||
"Invalid unit: 'au' at position 6: \\rule{̲1au}{2em}");
|
||||
});
|
||||
it("reject size without number", function() {
|
||||
expect("\\rule{em}{2em}").toFailWithParseError(
|
||||
"Invalid size at position 6: \\rule{̲em}{2em}");
|
||||
});
|
||||
});
|
||||
|
||||
});
|
||||
Loading…
Reference in New Issue
Block a user