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MTMathListBuilderTest.m
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MTMathListBuilderTest.m
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//
// MTMathListBuilderTest.m
// iosMath
//
// Created by Kostub Deshmukh on 8/28/13.
// Copyright (C) 2013 MathChat
//
// This software may be modified and distributed under the terms of the
// MIT license. See the LICENSE file for details.
//
@import XCTest;
#import "MTMathListBuilder.h"
#import "MTMathAtomFactory.h"
@interface MTMathListBuilderTest : XCTestCase
@end
@implementation MTMathListBuilderTest
- (void) checkAtomTypes:(MTMathList*) list types:(NSArray*) types desc:(NSString*) desc
{
XCTAssertEqual(list.atoms.count, types.count, @"%@", desc);
for (int i = 0; i < list.atoms.count; i++) {
MTMathAtom *atom = list.atoms[i];
XCTAssertNotNil(atom, @"%@", desc);
XCTAssertEqualObjects(@(atom.type), types[i], @"%@", desc);
}
}
- (void)setUp
{
[super setUp];
// Set-up code here.
}
- (void)tearDown
{
// Tear-down code here.
[super tearDown];
}
static NSArray* getTestData() {
return @[
@[ @"x", @[ @(kMTMathAtomVariable) ] , @"x"],
@[ @"1", @[ @(kMTMathAtomNumber) ] , @"1"],
@[ @"*", @[ @(kMTMathAtomBinaryOperator) ] ,@"*"],
@[ @"+", @[ @(kMTMathAtomBinaryOperator) ], @"+"],
@[ @".", @[ @(kMTMathAtomNumber) ], @"." ],
@[ @"(", @[ @(kMTMathAtomOpen) ], @"(" ],
@[ @")", @[ @(kMTMathAtomClose) ], @")" ],
@[ @",", @[ @(kMTMathAtomPunctuation)], @"," ],
@[ @"!", @[ @(kMTMathAtomClose)], @"!" ],
@[ @"=", @[ @(kMTMathAtomRelation)], @"=" ],
@[ @"x+2", @[ @(kMTMathAtomVariable), @(kMTMathAtomBinaryOperator), @(kMTMathAtomNumber) ], @"x+2"],
// spaces are ignored
@[ @"(2.3 * 8)", @[ @(kMTMathAtomOpen), @(kMTMathAtomNumber), @(kMTMathAtomNumber), @(kMTMathAtomNumber), @(kMTMathAtomBinaryOperator), @(kMTMathAtomNumber) , @(kMTMathAtomClose) ], @"(2.3*8)"],
// braces are just for grouping
@[ @"5{3+4}", @[@(kMTMathAtomNumber), @(kMTMathAtomNumber), @(kMTMathAtomBinaryOperator), @(kMTMathAtomNumber)], @"53+4"],
// commands
@[ @"\\pi+\\theta\\geq 3",@[ @(kMTMathAtomVariable), @(kMTMathAtomBinaryOperator), @(kMTMathAtomVariable), @(kMTMathAtomRelation), @(kMTMathAtomNumber)], @"\\pi +\\theta \\geq 3"],
// aliases
@[ @"\\pi\\ne 5 \\land 3", @[ @(kMTMathAtomVariable), @(kMTMathAtomRelation), @(kMTMathAtomNumber), @(kMTMathAtomBinaryOperator), @(kMTMathAtomNumber)], @"\\pi \\neq 5\\wedge 3"],
// control space
@[ @"x \\ y", @[ @(kMTMathAtomVariable), @(kMTMathAtomOrdinary), @(kMTMathAtomVariable)], @"x\\ y"],
// spacing
@[ @"x \\quad y \\; z \\! q", @[ @(kMTMathAtomVariable), @(kMTMathAtomSpace), @(kMTMathAtomVariable),@(kMTMathAtomSpace), @(kMTMathAtomVariable),@(kMTMathAtomSpace), @(kMTMathAtomVariable)], @"x\\quad y\\; z\\! q"],
];
}
- (void) testBuilder
{
NSArray* data = getTestData();
for (NSArray* testCase in data) {
NSString* str = testCase[0];
NSError* error;
MTMathList* list = [MTMathListBuilder buildFromString:str error:&error];
XCTAssertNil(error);
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
NSArray* atomTypes = testCase[1];
[self checkAtomTypes:list types:atomTypes desc:desc];
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, testCase[2], @"%@", desc);
}
}
static NSArray* getTestDataSuperScript() {
return @[
@[ @"x^2", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber) ], @"x^{2}"],
@[ @"x^23", @[ @(kMTMathAtomVariable), @(kMTMathAtomNumber) ], @[ @(kMTMathAtomNumber) ], @"x^{2}3"],
@[ @"x^{23}", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber), @(kMTMathAtomNumber) ], @"x^{23}"],
@[ @"x^2^3", @[ @(kMTMathAtomVariable), @(kMTMathAtomOrdinary) ], @[ @(kMTMathAtomNumber) ], @"x^{2}{}^{3}" ],
@[ @"x^{2^3}", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber)], @[ @(kMTMathAtomNumber),], @"x^{2^{3}}"],
@[ @"x^{^2*}", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomOrdinary), @(kMTMathAtomBinaryOperator)], @[ @(kMTMathAtomNumber),], @"x^{{}^{2}*}"],
@[ @"^2", @ [ @(kMTMathAtomOrdinary)], @[ @(kMTMathAtomNumber) ], @"{}^{2}"],
@[ @"{}^2", @ [ @(kMTMathAtomOrdinary)], @[ @(kMTMathAtomNumber) ], @"{}^{2}"],
@[ @"x^^2", @[ @(kMTMathAtomVariable), @(kMTMathAtomOrdinary) ], @[ ], @"x^{}{}^{2}"],
@[ @"5{x}^2", @ [ @(kMTMathAtomNumber), @(kMTMathAtomVariable)], @[ ], @"5x^{2}"],
];
}
- (void) testSuperScript
{
NSArray* data = getTestDataSuperScript();
for (NSArray* testCase in data) {
NSString* str = testCase[0];
NSError* error;
MTMathList* list = [MTMathListBuilder buildFromString:str error:&error];
XCTAssertNil(error);
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
NSArray* atomTypes = testCase[1];
[self checkAtomTypes:list types:atomTypes desc:desc];
// get the first atom
MTMathAtom* first = list.atoms[0];
// check it's superscript
NSArray* types = testCase[2];
if (types.count > 0) {
XCTAssertNotNil(first.superScript, @"%@", desc);
}
MTMathList* superlist = first.superScript;
[self checkAtomTypes:superlist types:testCase[2] desc:desc];
if (testCase.count == 5) {
// one more level
MTMathAtom* superFirst = superlist.atoms[0];
MTMathList* supersuperList = superFirst.superScript;
[self checkAtomTypes:supersuperList types:testCase[3] desc:desc];
}
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, [testCase lastObject], @"%@", desc);
}
}
static NSArray* getTestDataSubScript() {
return @[
@[ @"x_2", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber) ], @"x_{2}" ],
@[ @"x_23", @[ @(kMTMathAtomVariable), @(kMTMathAtomNumber) ], @[ @(kMTMathAtomNumber) ], @"x_{2}3"],
@[ @"x_{23}", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber), @(kMTMathAtomNumber) ], @"x_{23}"],
@[ @"x_2_3", @[ @(kMTMathAtomVariable) , @(kMTMathAtomOrdinary)], @[ @(kMTMathAtomNumber) ], @"x_{2}{}_{3}" ],
@[ @"x_{2_3}", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber)], @[ @(kMTMathAtomNumber),], @"x_{2_{3}}"],
@[ @"x_{_2*}", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomOrdinary), @(kMTMathAtomBinaryOperator)], @[ @(kMTMathAtomNumber),], @"x_{{}_{2}*}"],
@[ @"_2", @ [ @(kMTMathAtomOrdinary)], @[ @(kMTMathAtomNumber) ], @"{}_{2}" ],
@[ @"{}_2", @ [ @(kMTMathAtomOrdinary)], @[ @(kMTMathAtomNumber) ], @"{}_{2}" ],
@[ @"x__2", @[ @(kMTMathAtomVariable), @(kMTMathAtomOrdinary) ], @[ ], @"x_{}{}_{2}"],
@[ @"5{x}_2", @ [ @(kMTMathAtomNumber), @(kMTMathAtomVariable)], @[ ], @"5x_{2}"],
];
}
- (void) testSubScript
{
NSArray* data = getTestDataSubScript();
for (NSArray* testCase in data) {
NSString* str = testCase[0];
NSError* error;
MTMathList* list = [MTMathListBuilder buildFromString:str error:&error];
XCTAssertNil(error);
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
NSArray* atomTypes = testCase[1];
[self checkAtomTypes:list types:atomTypes desc:desc];
// get the first atom
MTMathAtom* first = list.atoms[0];
// check it's superscript
NSArray* types = testCase[2];
if (types.count > 0) {
XCTAssertNotNil(first.subScript, @"%@", desc);
}
MTMathList* sublist = first.subScript;
[self checkAtomTypes:sublist types:testCase[2] desc:desc];
if (testCase.count == 5) {
// one more level
MTMathAtom* subFirst = sublist.atoms[0];
MTMathList* subsubList = subFirst.subScript;
[self checkAtomTypes:subsubList types:testCase[3] desc:desc];
}
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, [testCase lastObject], @"%@", desc);
}
}
static NSArray* getTestDataSuperSubScript() {
return @[
@[ @"x_2^*", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber) ], @[ @(kMTMathAtomBinaryOperator) ], @"x^{*}_{2}" ],
@[ @"x^*_2", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber) ], @[ @(kMTMathAtomBinaryOperator) ], @"x^{*}_{2}" ],
@[ @"x_^*", @[ @(kMTMathAtomVariable) ], @[ ], @[ @(kMTMathAtomBinaryOperator) ], @"x^{*}_{}" ],
@[ @"x^_2", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber)], @[ ], @"x^{}_{2}"],
@[ @"x_{2^*}", @[ @(kMTMathAtomVariable) ], @[ @(kMTMathAtomNumber)], @[ ], @"x_{2^{*}}"],
@[ @"x^{*_2}", @[ @(kMTMathAtomVariable) ], @[ ], @[ @(kMTMathAtomBinaryOperator),], @"x^{*_{2}}"],
@[ @"_2^*", @ [ @(kMTMathAtomOrdinary)], @[ @(kMTMathAtomNumber) ], @[ @(kMTMathAtomBinaryOperator) ], @"{}^{*}_{2}"],
];
}
- (void) testSuperSubScript
{
NSArray* data = getTestDataSuperSubScript();
for (NSArray* testCase in data) {
NSString* str = testCase[0];
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
NSArray* atomTypes = testCase[1];
[self checkAtomTypes:list types:atomTypes desc:desc];
// get the first atom
MTMathAtom* first = list.atoms[0];
NSArray* subscript = testCase[2];
if (subscript.count > 0) {
XCTAssertNotNil(first.subScript, @"%@", desc);
MTMathList* sublist = first.subScript;
[self checkAtomTypes:sublist types:subscript desc:desc];
}
NSArray* superscript = testCase[3];
if (superscript.count > 0) {
XCTAssertNotNil(first.superScript, @"%@", desc);
MTMathList* sublist = first.superScript;
[self checkAtomTypes:sublist types:superscript desc:desc];
}
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, [testCase lastObject], @"%@", desc);
}
}
- (void) testSymbols
{
NSString *str = @"5\\times3^{2\\div2}";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @3, @"%@", desc);
MTMathAtom* atom = list.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"5", @"%@", desc);
atom = list.atoms[1];
XCTAssertEqual(atom.type, kMTMathAtomBinaryOperator, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"\u00D7", @"%@", desc);
atom = list.atoms[2];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"3", @"%@", desc);
// super script
MTMathList* superList = atom.superScript;
XCTAssertNotNil(superList, @"%@", desc);
XCTAssertEqualObjects(@(superList.atoms.count), @3, @"%@", desc);
atom = superList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"2", @"%@", desc);
atom = superList.atoms[1];
XCTAssertEqual(atom.type, kMTMathAtomBinaryOperator, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"\u00F7", @"%@", desc);
atom = superList.atoms[2];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"2", @"%@", desc);
}
- (void) testFrac
{
NSString *str = @"\\frac1c";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTFraction* frac = list.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertTrue(frac.hasRule);
XCTAssertNil(frac.rightDelimiter);
XCTAssertNil(frac.leftDelimiter);
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"1", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"c", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\frac{1}{c}", @"%@", desc);
}
- (void) testFracInFrac
{
NSString *str = @"\\frac1\\frac23";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTFraction* frac = list.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertTrue(frac.hasRule);
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"1", @"%@", desc);
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
frac = subList.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"2", @"%@", desc);
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"3", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\frac{1}{\\frac{2}{3}}", @"%@", desc);
}
- (void) testSqrt
{
NSString *str = @"\\sqrt2";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTRadical* rad = list.atoms[0];
XCTAssertEqual(rad.type, kMTMathAtomRadical, @"%@", desc);
XCTAssertEqualObjects(rad.nucleus, @"", @"%@", desc);
MTMathList *subList = rad.radicand;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"2", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\sqrt{2}", @"%@", desc);
}
- (void) testSqrtInSqrt
{
NSString *str = @"\\sqrt\\sqrt2";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTRadical* rad = list.atoms[0];
XCTAssertEqual(rad.type, kMTMathAtomRadical, @"%@", desc);
XCTAssertEqualObjects(rad.nucleus, @"", @"%@", desc);
MTMathList *subList = rad.radicand;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
rad = subList.atoms[0];
XCTAssertEqual(rad.type, kMTMathAtomRadical, @"%@", desc);
XCTAssertEqualObjects(rad.nucleus, @"", @"%@", desc);
subList = rad.radicand;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom* atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"2", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\sqrt{\\sqrt{2}}", @"%@", desc);
}
- (void) testRad
{
NSString *str = @"\\sqrt[3]2";
MTMathList* list = [MTMathListBuilder buildFromString:str];
XCTAssertNotNil(list);
XCTAssertEqualObjects(@(list.atoms.count), @1);
MTRadical* rad = list.atoms[0];
XCTAssertEqual(rad.type, kMTMathAtomRadical);
XCTAssertEqualObjects(rad.nucleus, @"");
MTMathList *subList = rad.radicand;
XCTAssertNotNil(subList);
XCTAssertEqualObjects(@(subList.atoms.count), @1);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber);
XCTAssertEqualObjects(atom.nucleus, @"2");
subList = rad.degree;
XCTAssertNotNil(subList);
XCTAssertEqualObjects(@(subList.atoms.count), @1);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber);
XCTAssertEqualObjects(atom.nucleus, @"3");
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\sqrt[3]{2}");
}
static NSArray* getTestDataLeftRight() {
return @[
@[@"\\left( 2 \\right)", @[ @(kMTMathAtomInner) ], @0, @[ @(kMTMathAtomNumber)], @"(", @")", @"\\left( 2\\right) "],
// spacing
@[@"\\left ( 2 \\right )", @[ @(kMTMathAtomInner) ], @0, @[ @(kMTMathAtomNumber)], @"(", @")", @"\\left( 2\\right) "],
// commands
@[@"\\left\\{ 2 \\right\\}", @[ @(kMTMathAtomInner) ], @0, @[ @(kMTMathAtomNumber)], @"{", @"}", @"\\left\\{ 2\\right\\} "],
// complex commands
@[@"\\left\\langle x \\right\\rangle", @[ @(kMTMathAtomInner) ], @0, @[ @(kMTMathAtomVariable)], @"\u2329", @"\u232A", @"\\left< x\\right> "],
// bars
@[@"\\left| x \\right\\|", @[ @(kMTMathAtomInner) ], @0, @[ @(kMTMathAtomVariable)], @"|", @"\u2016", @"\\left| x\\right\\| "],
// inner in between
@[@"5 + \\left( 2 \\right) - 2", @[ @(kMTMathAtomNumber), @(kMTMathAtomBinaryOperator), @(kMTMathAtomInner), @(kMTMathAtomBinaryOperator), @(kMTMathAtomNumber) ], @2, @[ @(kMTMathAtomNumber)], @"(", @")", @"5+\\left( 2\\right) -2"],
// long inner
@[@"\\left( 2 + \\frac12\\right)", @[ @(kMTMathAtomInner) ], @0, @[ @(kMTMathAtomNumber), @(kMTMathAtomBinaryOperator), @(kMTMathAtomFraction)], @"(", @")", @"\\left( 2+\\frac{1}{2}\\right) "],
// nested
@[@"\\left[ 2 + \\left|\\frac{-x}{2}\\right| \\right]", @[ @(kMTMathAtomInner) ], @0, @[ @(kMTMathAtomNumber), @(kMTMathAtomBinaryOperator), @(kMTMathAtomInner)], @"[", @"]", @"\\left[ 2+\\left| \\frac{-x}{2}\\right| \\right] "],
// With scripts
@[@"\\left( 2 \\right)^2", @[ @(kMTMathAtomInner) ], @0, @[ @(kMTMathAtomNumber)], @"(", @")", @"\\left( 2\\right) ^{2}"],
// Scripts on left
@[@"\\left(^2 \\right )", @[ @(kMTMathAtomInner)], @0, @[ @(kMTMathAtomOrdinary)], @"(", @")", @"\\left( {}^{2}\\right) "],
// Dot
@[@"\\left( 2 \\right.", @[ @(kMTMathAtomInner)], @0, @[ @(kMTMathAtomNumber)], @"(", @"", @"\\left( 2\\right. "],
];
}
- (void) testLeftRight
{
NSArray* data = getTestDataLeftRight();
for (NSArray* testCase in data) {
NSString* str = testCase[0];
NSError* error;
MTMathList* list = [MTMathListBuilder buildFromString:str error:&error];
XCTAssertNotNil(list, @"%@", str);
XCTAssertNil(error, @"%@", str);
[self checkAtomTypes:list types:testCase[1] desc:[NSString stringWithFormat:@"%@ outer", str]];
NSNumber* innerLoc = testCase[2];
MTInner* inner = list.atoms[innerLoc.intValue];
XCTAssertEqual(inner.type, kMTMathAtomInner, @"%@", str);
XCTAssertEqualObjects(inner.nucleus, @"", @"%@", str);
MTMathList* innerList = inner.innerList;
XCTAssertNotNil(innerList, @"%@", str);
[self checkAtomTypes:innerList types:testCase[3] desc:[NSString stringWithFormat:@"%@ inner", str]];
XCTAssertNotNil(inner.leftBoundary, @"%@", str);
XCTAssertEqual(inner.leftBoundary.type, kMTMathAtomBoundary, @"%@", str);
XCTAssertEqualObjects(inner.leftBoundary.nucleus, testCase[4], @"%@", str);
XCTAssertNotNil(inner.rightBoundary, @"%@", str);
XCTAssertEqual(inner.rightBoundary.type, kMTMathAtomBoundary, @"%@", str);
XCTAssertEqualObjects(inner.rightBoundary.nucleus, testCase[5], @"%@", str);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, testCase[6], @"%@", str);
}
}
- (void) testOver
{
NSString *str = @"1 \\over c";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTFraction* frac = list.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertTrue(frac.hasRule);
XCTAssertNil(frac.rightDelimiter);
XCTAssertNil(frac.leftDelimiter);
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"1", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"c", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\frac{1}{c}", @"%@", desc);
}
- (void) testOverInParens
{
NSString *str = @"5 + {1 \\over c} + 8";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @5, @"%@", desc);
NSArray* types = @[@(kMTMathAtomNumber), @(kMTMathAtomBinaryOperator), @(kMTMathAtomFraction), @(kMTMathAtomBinaryOperator), @(kMTMathAtomNumber)];
[self checkAtomTypes:list types:types desc:desc];
MTFraction* frac = list.atoms[2];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertTrue(frac.hasRule);
XCTAssertNil(frac.rightDelimiter);
XCTAssertNil(frac.leftDelimiter);
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"1", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"c", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"5+\\frac{1}{c}+8", @"%@", desc);
}
- (void) testAtop
{
NSString *str = @"1 \\atop c";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTFraction* frac = list.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertFalse(frac.hasRule);
XCTAssertNil(frac.rightDelimiter);
XCTAssertNil(frac.leftDelimiter);
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"1", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"c", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"{1 \\atop c}", @"%@", desc);
}
- (void) testAtopInParens
{
NSString *str = @"5 + {1 \\atop c} + 8";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @5, @"%@", desc);
NSArray* types = @[@(kMTMathAtomNumber), @(kMTMathAtomBinaryOperator), @(kMTMathAtomFraction), @(kMTMathAtomBinaryOperator), @(kMTMathAtomNumber)];
[self checkAtomTypes:list types:types desc:desc];
MTFraction* frac = list.atoms[2];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertFalse(frac.hasRule);
XCTAssertNil(frac.rightDelimiter);
XCTAssertNil(frac.leftDelimiter);
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"1", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"c", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"5+{1 \\atop c}+8", @"%@", desc);
}
- (void) testChoose
{
NSString *str = @"n \\choose k";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTFraction* frac = list.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertFalse(frac.hasRule);
XCTAssertEqualObjects(frac.rightDelimiter, @")");
XCTAssertEqualObjects(frac.leftDelimiter, @"(");
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"n", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"k", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"{n \\choose k}", @"%@", desc);
}
- (void) testBrack
{
NSString *str = @"n \\brack k";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTFraction* frac = list.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertFalse(frac.hasRule);
XCTAssertEqualObjects(frac.rightDelimiter, @"]");
XCTAssertEqualObjects(frac.leftDelimiter, @"[");
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"n", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"k", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"{n \\brack k}", @"%@", desc);
}
- (void) testBrace
{
NSString *str = @"n \\brace k";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTFraction* frac = list.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertFalse(frac.hasRule);
XCTAssertEqualObjects(frac.rightDelimiter, @"}");
XCTAssertEqualObjects(frac.leftDelimiter, @"{");
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"n", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"k", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"{n \\brace k}", @"%@", desc);
}
- (void) testBinom
{
NSString *str = @"\\binom{n}{k}";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTFraction* frac = list.atoms[0];
XCTAssertEqual(frac.type, kMTMathAtomFraction, @"%@", desc);
XCTAssertEqualObjects(frac.nucleus, @"", @"%@", desc);
XCTAssertFalse(frac.hasRule);
XCTAssertEqualObjects(frac.rightDelimiter, @")");
XCTAssertEqualObjects(frac.leftDelimiter, @"(");
MTMathList *subList = frac.numerator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"n", @"%@", desc);
atom = list.atoms[0];
subList = frac.denominator;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"k", @"%@", desc);
// convert it back to latex (binom converts to choose)
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"{n \\choose k}", @"%@", desc);
}
- (void) testOverLine
{
NSString *str = @"\\overline 2";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTOverLine* over = list.atoms[0];
XCTAssertEqual(over.type, kMTMathAtomOverline, @"%@", desc);
XCTAssertEqualObjects(over.nucleus, @"", @"%@", desc);
MTMathList *subList = over.innerList;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"2", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\overline{2}", @"%@", desc);
}
- (void) testUnderline
{
NSString *str = @"\\underline 2";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTUnderLine* under = list.atoms[0];
XCTAssertEqual(under.type, kMTMathAtomUnderline, @"%@", desc);
XCTAssertEqualObjects(under.nucleus, @"", @"%@", desc);
MTMathList *subList = under.innerList;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomNumber, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"2", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\underline{2}", @"%@", desc);
}
- (void) testAccent
{
NSString *str = @"\\bar x";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTAccent* accent = list.atoms[0];
XCTAssertEqual(accent.type, kMTMathAtomAccent, @"%@", desc);
XCTAssertEqualObjects(accent.nucleus, @"\u0304", @"%@", desc);
MTMathList *subList = accent.innerList;
XCTAssertNotNil(subList, @"%@", desc);
XCTAssertEqualObjects(@(subList.atoms.count), @1, @"%@", desc);
MTMathAtom *atom = subList.atoms[0];
XCTAssertEqual(atom.type, kMTMathAtomVariable, @"%@", desc);
XCTAssertEqualObjects(atom.nucleus, @"x", @"%@", desc);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\bar{x}", @"%@", desc);
}
- (void) testMathSpace
{
NSString *str = @"\\!";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @1, @"%@", desc);
MTMathSpace* space = list.atoms[0];
XCTAssertEqual(space.type, kMTMathAtomSpace, @"%@", desc);
XCTAssertEqualObjects(space.nucleus, @"", @"%@", desc);
XCTAssertEqual(space.space, -3);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\! ", @"%@", desc);
}
- (void) testMathStyle
{
NSString *str = @"\\textstyle y \\scriptstyle x";
MTMathList* list = [MTMathListBuilder buildFromString:str];
NSString* desc = [NSString stringWithFormat:@"Error for string:%@", str];
XCTAssertNotNil(list, @"%@", desc);
XCTAssertEqualObjects(@(list.atoms.count), @4, @"%@", desc);
MTMathStyle* style = list.atoms[0];
XCTAssertEqual(style.type, kMTMathAtomStyle, @"%@", desc);
XCTAssertEqualObjects(style.nucleus, @"", @"%@", desc);
XCTAssertEqual(style.style, kMTLineStyleText);
MTMathStyle* style2 = list.atoms[2];
XCTAssertEqual(style2.type, kMTMathAtomStyle, @"%@", desc);
XCTAssertEqualObjects(style2.nucleus, @"", @"%@", desc);
XCTAssertEqual(style2.style, kMTLineStyleScript);
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\textstyle y\\scriptstyle x", @"%@", desc);
}
- (void) testMatrix
{
NSString *str = @"\\begin{matrix} x & y \\\\ z & w \\end{matrix}";
MTMathList* list = [MTMathListBuilder buildFromString:str];
XCTAssertNotNil(list);
XCTAssertEqualObjects(@(list.atoms.count), @1);
MTMathTable* table = list.atoms[0];
XCTAssertEqual(table.type, kMTMathAtomTable);
XCTAssertEqualObjects(table.nucleus, @"");
XCTAssertEqualObjects(table.environment, @"matrix");
XCTAssertEqual(table.interRowAdditionalSpacing, 0);
XCTAssertEqual(table.interColumnSpacing, 18);
XCTAssertEqual(table.numRows, 2);
XCTAssertEqual(table.numColumns, 2);
for (int i = 0; i < 2; i++) {
MTColumnAlignment alignment = [table getAlignmentForColumn:i];
XCTAssertEqual(alignment, kMTColumnAlignmentCenter);
for (int j = 0; j < 2; j++) {
MTMathList* cell = table.cells[j][i];
XCTAssertEqual(cell.atoms.count, 2);
MTMathStyle* style = cell.atoms[0];
XCTAssertEqual(style.type, kMTMathAtomStyle);
XCTAssertEqual(style.style, kMTLineStyleText);
MTMathAtom* atom = cell.atoms[1];
XCTAssertEqual(atom.type, kMTMathAtomVariable);
}
}
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\begin{matrix}x&y\\\\ z&w\\end{matrix}");
}
- (void) testPMatrix
{
NSString *str = @"\\begin{pmatrix} x & y \\\\ z & w \\end{pmatrix}";
MTMathList* list = [MTMathListBuilder buildFromString:str];
XCTAssertNotNil(list);
XCTAssertEqualObjects(@(list.atoms.count), @1);
MTInner* inner = list.atoms[0];
XCTAssertEqual(inner.type, kMTMathAtomInner, @"%@", str);
XCTAssertEqualObjects(inner.nucleus, @"", @"%@", str);
MTMathList* innerList = inner.innerList;
XCTAssertNotNil(innerList, @"%@", str);
XCTAssertNotNil(inner.leftBoundary, @"%@", str);
XCTAssertEqual(inner.leftBoundary.type, kMTMathAtomBoundary, @"%@", str);
XCTAssertEqualObjects(inner.leftBoundary.nucleus, @"(", @"%@", str);
XCTAssertNotNil(inner.rightBoundary, @"%@", str);
XCTAssertEqual(inner.rightBoundary.type, kMTMathAtomBoundary, @"%@", str);
XCTAssertEqualObjects(inner.rightBoundary.nucleus, @")", @"%@", str);
XCTAssertEqualObjects(@(innerList.atoms.count), @1);
MTMathTable* table = innerList.atoms[0];
XCTAssertEqual(table.type, kMTMathAtomTable);
XCTAssertEqualObjects(table.nucleus, @"");
XCTAssertEqualObjects(table.environment, @"matrix");
XCTAssertEqual(table.interRowAdditionalSpacing, 0);
XCTAssertEqual(table.interColumnSpacing, 18);
XCTAssertEqual(table.numRows, 2);
XCTAssertEqual(table.numColumns, 2);
for (int i = 0; i < 2; i++) {
MTColumnAlignment alignment = [table getAlignmentForColumn:i];
XCTAssertEqual(alignment, kMTColumnAlignmentCenter);
for (int j = 0; j < 2; j++) {
MTMathList* cell = table.cells[j][i];
XCTAssertEqual(cell.atoms.count, 2);
MTMathStyle* style = cell.atoms[0];
XCTAssertEqual(style.type, kMTMathAtomStyle);
XCTAssertEqual(style.style, kMTLineStyleText);
MTMathAtom* atom = cell.atoms[1];
XCTAssertEqual(atom.type, kMTMathAtomVariable);
}
}
// convert it back to latex
NSString* latex = [MTMathListBuilder mathListToString:list];
XCTAssertEqualObjects(latex, @"\\left( \\begin{matrix}x&y\\\\ z&w\\end{matrix}\\right) ");
}
- (void) testDefaultTable
{
NSString *str = @"x \\\\ y";
MTMathList* list = [MTMathListBuilder buildFromString:str];
XCTAssertNotNil(list);
XCTAssertEqualObjects(@(list.atoms.count), @1);
MTMathTable* table = list.atoms[0];
XCTAssertEqual(table.type, kMTMathAtomTable);
XCTAssertEqualObjects(table.nucleus, @"");
XCTAssertNil(table.environment);