public void TestAppend()
{
var list1 = new MathList();
var atom1 = MathAtoms.Placeholder;
var atom2 = MathAtoms.Operator("+", false);
var atom3 = MathAtoms.Operator("-", false);
list1.Add(atom1);
list1.Add(atom2);
list1.Add(atom3);
var list2 = new MathList();
var atom5 = MathAtoms.Times;
var atom6 = MathAtoms.Divide;
list2.Add(atom5);
list2.Add(atom6);
Assert.Equal(3, list1.Count);
Assert.Equal(2, list2.Count);
list1.Append(list2);
Assert.Equal(5, list1.Count);
Assert.Equal(atom5, list1[3]);
Assert.Equal(atom6, list1[4]);
}
public void TestAddErrors()
{
var list = new MathList();
Assert.Throws <InvalidOperationException>(() => list.Add(null));
Assert.Throws <InvalidOperationException>(() => list.Add(MathAtoms.Create(MathAtomType.Boundary, "")));
}
public void TestSimpleVariable()
{
var list = new MathList {
MathAtoms.ForCharacter('x')
};
var display = _context.CreateLine(list, _font, LineStyle.Display);
Assert.NotNull(display);
Assert.Equal(LinePosition.Regular, display.LinePosition);
Assert.Equal(new PointF(), display.Position);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display.HasScript);
Assert.Equal(int.MinValue, display.IndexInParent);
Assert.Single(display.Displays);
var sub0 = display.Displays[0];
Assert.True(sub0 is TextLineDisplay <TFont, TGlyph>);
var line = sub0 as TextLineDisplay <TFont, TGlyph>;
Assert.Single(line.Atoms); // have to think about these; doesn't really work atm
Assert.Equal("x", line.StringText());
Assert.Equal(new PointF(), line.Position);
Assert.Equal(new Range(0, 1), line.Range);
Assert.False(line.HasScript);
var descent = display.Descent;
Assertions.ApproximatelyEqual(14, display.Ascent, 0.01);
Assertions.ApproximatelyEqual(4, descent, 0.01);
Assertions.ApproximatelyEqual(10, display.Width, 0.01);
Assert.Equal(display.Ascent, line.Ascent);
Assert.Equal(display.Descent, line.Descent);
Assert.Equal(display.Width, line.Width);
}
public void TestCopySpace()
{
var space = MathAtoms.Space(3 * Structures.Space.Point);
Assert.Equal(MathAtomType.Space, space.AtomType);
var copy = new Space(space, false);
CheckClone(space, copy);
Assert.Equal(3, copy.Length);
Assert.False(copy.IsMu);
}
public void TestAtomInit()
{
var atom = MathAtoms.Create(MathAtomType.Open, "(");
Assert.Equal(MathAtomType.Open, atom.AtomType);
Assert.Equal("(", atom.Nucleus);
var atom2 = MathAtoms.Create(MathAtomType.Radical, "(");
Assert.Equal(MathAtomType.Radical, atom2.AtomType);
Assert.Equal("(", atom2.Nucleus);
}
public void TestSuperScript()
{
var mathList = new MathList();
var x = MathAtoms.ForCharacter('x');
var superscript = new MathList {
MathAtoms.ForCharacter('2')
};
x.Superscript = superscript;
mathList.Add(x);
var display = Typesetter <TFont, TGlyph> .CreateLine(mathList, _font, _context, LineStyle.Display);
Assert.NotNull(display);
Assert.Equal(LinePosition.Regular, display.LinePosition);
Assert.Equal(new PointF(), display.Position);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display.HasScript);
Assert.Equal(display.IndexInParent, Range.UndefinedInt);
Assert.Equal(2, display.Displays.Count());
var super0 = display.Displays[0];
var line = super0 as TextLineDisplay <TFont, TGlyph>;
Assert.NotNull(line);
Assert.Single(line.Atoms);
Assert.Equal("x", line.StringText());
Assert.Equal(new PointF(), line.Position);
Assert.True(line.HasScript);
var super1 = display.Displays[1] as ListDisplay <TFont, TGlyph>;
Assert.NotNull(super1);
Assert.Equal(LinePosition.Superscript, super1.LinePosition);
var super1Position = super1.Position;
Assertions.ApproximatePoint(10.32, 7.26, super1Position, 0.01); // may change as we implement more details?
Assert.Equal(new Range(0, 1), super1.Range);
Assert.False(super1.HasScript);
Assert.Equal(0, super1.IndexInParent);
Assert.Single(super1.Displays);
var super10 = super1.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.NotNull(super10);
Assert.Single(super10.Atoms);
Assert.Equal(new PointF(), super10.Position);
Assert.False(super10.HasScript);
Assertions.ApproximatelyEqual(17.06, display.Ascent, 0.01);
Assertions.ApproximatelyEqual(4, display.Descent, 0.01);
}
public void TestRadical()
{
var mathList = new MathList {
new Radical {
Radicand = new MathList {
MathAtoms.ForCharacter('1')
}
}
};
var display = Typesetter <TFont, TGlyph> .CreateLine(mathList, _font, _context, LineStyle.Display);
Assert.Equal(LinePosition.Regular, display.LinePosition);
Assert.Equal(new PointF(), display.Position);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display.HasScript);
Assert.Equal(Range.UndefinedInt, display.IndexInParent);
Assert.Single(display.Displays);
var radical = display.Displays[0] as RadicalDisplay <TFont, TGlyph>;
Assert.Equal(new Range(0, 1), radical.Range);
Assert.False(radical.HasScript);
Assert.Equal(new PointF(), radical.Position);
Assert.NotNull(radical.Radicand);
Assert.Null(radical.Degree);
var display2 = radical.Radicand as ListDisplay <TFont, TGlyph>;
Assert.NotNull(display2);
Assert.Equal(LinePosition.Regular, display2.LinePosition);
Assertions.ApproximatePoint(10, 0, display2.Position, 0.01);
Assert.Equal(new Range(0, 1), display2.Range);
Assert.False(display2.HasScript);
Assert.Equal(Range.UndefinedInt, display2.IndexInParent);
Assert.Single(display2.Displays);
var line2 = display2.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(line2.Atoms);
Assert.Equal("1", line2.StringText());
Assert.Equal(new PointF(), line2.Position);
Assert.Equal(new Range(0, 1), line2.Range);
Assert.False(line2.HasScript);
Assertions.ApproximatelyEqual(18.56, display.Ascent, 0.01);
Assertions.ApproximatelyEqual(4, display.Descent, 0.01);
Assertions.ApproximatelyEqual(20, display.Width, 0.01);
}
public void TestCustom()
{
var input = @"\lcm(a,b)";
var builder = new MathListBuilder(input);
var list = builder.Build();
Assert.Null(list);
Assert.NotNull(builder.Error);
MathAtoms.AddLatexSymbol("lcm", MathAtoms.Operator("lcm", false));
var builder2 = new MathListBuilder(input);
var list2 = builder2.Build();
ExpandGroups(list2);
CheckAtomTypes(list2, MathAtomType.LargeOperator, MathAtomType.Open,
MathAtomType.Variable, MathAtomType.Punctuation, MathAtomType.Variable,
MathAtomType.Close);
var latex = MathListBuilder.MathListToString(list2);
Assert.Equal(@"\lcm (a,b)", latex);
}
public void TestRaiseBox()
{
var mathList = new MathList {
new Atoms.Extension.RaiseBox {
InnerList = new MathList {
MathAtoms.ForCharacter('r')
},
Raise = new Space(3 * Structures.Space.Point)
}
};
var display = Typesetter <TFont, TGlyph> .CreateLine(mathList, _font, _context, LineStyle.Display);
Assert.Equal(LinePosition.Regular, display.LinePosition);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display.HasScript);
Assert.Equal(Range.UndefinedInt, display.IndexInParent);
Assert.Single(display.Displays);
var display2 = display.Displays[0] as ListDisplay <TFont, TGlyph>;
Assert.Equal(LinePosition.Regular, display2.LinePosition);
Assert.Equal(new PointF(0, 3), display2.Position);
Assert.Equal(new Range(0, 1), display2.Range);
Assert.False(display2.HasScript);
Assert.Equal(Range.UndefinedInt, display2.IndexInParent);
Assert.Equal(1, display2.Displays.Count);
var line = display2.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(line.Atoms);
Assert.Equal("r", line.StringText());
Assert.Equal(new PointF(), line.Position);
Assert.False(line.HasScript);
Assertions.ApproximatelyEqual(17, display.Ascent, 0.01);
Assertions.ApproximatelyEqual(1, display.Descent, 0.01);
Assertions.ApproximatelyEqual(10, display.Width, 0.01);
}
public void TestCopyInner()
{
var atom1 = MathAtoms.Placeholder;
var atom2 = MathAtoms.Times;
var atom3 = MathAtoms.Divide;
var list = MathLists.WithAtoms(atom1, atom2, atom3);
var inner = new Inner {
InnerList = list,
LeftBoundary = MathAtoms.Create(MathAtomType.Boundary, "("),
RightBoundary = MathAtoms.Create(MathAtomType.Boundary, ")")
};
Assert.Equal(MathAtomType.Inner, inner.AtomType);
var copy = new Inner(inner, false);
CheckClone(inner, copy);
CheckClone(inner.InnerList, copy.InnerList);
CheckClone(inner.LeftBoundary, copy.LeftBoundary);
CheckClone(inner.RightBoundary, copy.RightBoundary);
}
public void TestScripts()
{
var atom = MathAtoms.Create(MathAtomType.Open, "(");
Assert.True(atom.ScriptsAllowed);
atom.Subscript = new MathList();
Assert.NotNull(atom.Subscript);
atom.Superscript = new MathList();
Assert.NotNull(atom.Superscript);
var atom2 = MathAtoms.Create(MathAtomType.Boundary, "(");
Assert.False(atom2.ScriptsAllowed);
atom2.Subscript = null;
Assert.Null(atom2.Subscript);
atom2.Superscript = null;
Assert.Null(atom2.Superscript);
var list = new MathList();
Assert.ThrowsAny <Exception>(() => atom2.Subscript = list);
Assert.ThrowsAny <Exception>(() => atom2.Superscript = list);
}
public void TestInsert()
{
var list = new MathList();
Assert.Empty(list);
var atom = MathAtoms.Placeholder;
list.Insert(0, atom);
Assert.Single(list);
Assert.Equal(atom, list[0]);
var atom2 = MathAtoms.Operator("+", false);
list.Insert(0, atom2);
Assert.Equal(2, list.Count);
Assert.Equal(atom2, list[0]);
Assert.Equal(atom, list[1]);
var atom3 = MathAtoms.Create(MathAtomType.Variable, "x");
list.Insert(2, atom3);
Assert.Equal(3, list.Count);
Assert.Equal(atom2, list[0]);
Assert.Equal(atom, list[1]);
Assert.Equal(atom3, list[2]);
}
public void TestCopy()
{
var list = new MathList {
MathAtoms.Placeholder,
MathAtoms.Times,
MathAtoms.Divide
};
var list2 = new MathList {
MathAtoms.Divide,
MathAtoms.Times
};
var open = MathAtoms.Create(MathAtomType.Open, "(");
open.Subscript = list;
open.Superscript = list2;
var clone = AtomCloner.Clone(open, false);
CheckClone(open, clone);
CheckClone(open.Superscript, clone.Superscript);
CheckClone(open.Subscript, clone.Subscript);
}
public void TestBinomial()
{
var list = new MathList();
var fraction = new Fraction(false)
{
Numerator = new MathList {
MathAtoms.ForCharacter('1')
},
Denominator = new MathList {
MathAtoms.ForCharacter('3')
},
LeftDelimiter = "(",
RightDelimiter = ")"
};
list.Add(fraction);
var display = Typesetter <TFont, TGlyph> .CreateLine(list, _font, _context, LineStyle.Display);
Assert.Equal(LinePosition.Regular, display.LinePosition);
Assert.Equal(new PointF(), display.Position);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display.HasScript);
Assert.Equal(Range.UndefinedInt, display.IndexInParent);
Assert.Single(display.Displays);
var display0 = display.Displays[0] as ListDisplay <TFont, TGlyph>;
Assert.Equal(LinePosition.Regular, display0.LinePosition);
Assert.Equal(new PointF(), display0.Position);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display0.HasScript);
Assert.Equal(Range.UndefinedInt, display0.IndexInParent);
Assert.Equal(3, display0.Displays.Count);
var glyph = display0.Displays[0] as GlyphDisplay <TFont, TGlyph>;
Assert.Equal(new PointF(), glyph.Position);
Assert.Equal(Range.NotFound, glyph.Range);
Assert.False(glyph.HasScript);
var subFraction = display0.Displays[1] as FractionDisplay <TFont, TGlyph>;
Assert.Equal(new Range(0, 1), subFraction.Range);
Assert.False(subFraction.HasScript);
Assertions.ApproximatePoint(10, 0, subFraction.Position, 0.01);
var numerator = subFraction.Numerator as ListDisplay <TFont, TGlyph>;
Assert.NotNull(numerator);
Assert.Equal(LinePosition.Regular, numerator.LinePosition);
Assertions.ApproximatePoint(10, 13.54, numerator.Position, 0.01);
Assert.Single(numerator.Displays);
Assert.Equal(Range.UndefinedInt, numerator.IndexInParent);
Assert.False(numerator.HasScript);
var subNumerator = numerator.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(subNumerator.Atoms);
Assert.Equal("1", subNumerator.StringText());
Assert.Equal(new PointF(), subNumerator.Position);
Assert.Equal(new Range(0, 1), subNumerator.Range);
Assert.False(subNumerator.HasScript);
var denominator = subFraction.Denominator as ListDisplay <TFont, TGlyph>;
Assert.NotNull(denominator);
Assert.Equal(LinePosition.Regular, denominator.LinePosition);
Assertions.ApproximatePoint(10, -13.72, denominator.Position, 0.01);
Assert.Equal(new Range(0, 1), denominator.Range);
Assert.False(denominator.HasScript);
Assert.Equal(Range.UndefinedInt, denominator.IndexInParent);
Assert.Single(denominator.Displays);
var subDenominator = denominator.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(subDenominator.Atoms);
Assert.Equal("3", subDenominator.StringText());
Assert.Equal(new PointF(), subDenominator.Position);
Assert.Equal(new Range(0, 1), subDenominator.Range);
Assert.False(subDenominator.HasScript);
var subRight = display0.Displays[2] as GlyphDisplay <TFont, TGlyph>;
Assert.False(subRight.HasScript);
Assert.Equal(Range.NotFound, subRight.Range);
Assertions.ApproximatePoint(20, 0, subRight.Position, 0.01);
Assertions.ApproximatelyEqual(27.54, display.Ascent, 0.01);
Assertions.ApproximatelyEqual(17.72, display.Descent, 0.01);
Assertions.ApproximatelyEqual(30, display.Width, 0.01);
}
public void TestAtop()
{
var mathList = new MathList {
new Fraction(false)
{
Numerator = new MathList {
MathAtoms.ForCharacter('1')
},
Denominator = new MathList {
MathAtoms.ForCharacter('3')
}
}
};
var display = Typesetter <TFont, TGlyph> .CreateLine(mathList, _font, _context, LineStyle.Display);
Assert.Equal(LinePosition.Regular, display.LinePosition);
Assert.Equal(new PointF(), display.Position);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display.HasScript);
Assert.Equal(Range.UndefinedInt, display.IndexInParent);
Assert.Single(display.Displays);
var fraction = display.Displays[0] as FractionDisplay <TFont, TGlyph>;
Assert.Equal(new Range(0, 1), fraction.Range);
Assert.False(fraction.HasScript);
Assert.Equal(new PointF(), fraction.Position);
var numerator = fraction.Numerator as ListDisplay <TFont, TGlyph>;
Assert.NotNull(numerator);
Assert.Equal(LinePosition.Regular, numerator.LinePosition);
Assert.False(numerator.HasScript);
Assertions.ApproximatePoint(0, 13.54, numerator.Position, 0.01);
Assert.Equal(new Range(0, 1), numerator.Range);
Assert.Equal(Range.UndefinedInt, numerator.IndexInParent);
Assert.Single(numerator.Displays);
var subNumerator = numerator.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(subNumerator.Atoms);
Assert.Equal("1", subNumerator.StringText());
Assert.Equal(new PointF(), subNumerator.Position);
Assert.Equal(new Range(0, 1), subNumerator.Range);
Assert.False(subNumerator.HasScript);
var denominator = fraction.Denominator as ListDisplay <TFont, TGlyph>;
Assert.NotNull(denominator);
Assert.Equal(LinePosition.Regular, denominator.LinePosition);
Assertions.ApproximatePoint(0, -13.73, denominator.Position, 0.01);
Assert.Equal(new Range(0, 1), denominator.Range);
Assert.False(denominator.HasScript);
Assert.Equal(Range.UndefinedInt, denominator.IndexInParent);
Assert.Single(denominator.Displays);
var subDenominator = denominator.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(subDenominator.Atoms);
Assert.Equal("3", subDenominator.StringText());
Assert.Equal(new PointF(), subDenominator.Position);
Assert.Equal(new Range(0, 1), subDenominator.Range);
Assert.False(subDenominator.HasScript);
Assertions.ApproximatelyEqual(27.54, display.Ascent, 0.01);
Assertions.ApproximatelyEqual(17.72, display.Descent, 0.01);
Assertions.ApproximatelyEqual(10, display.Width, 0.01);
}
public void TestInner()
{
var mathList = new MathList {
new Inner {
InnerList = new MathList {
MathAtoms.ForCharacter('x'),
},
LeftBoundary = MathAtoms.Create(MathAtomType.Boundary, '('),
RightBoundary = MathAtoms.Create(MathAtomType.Boundary, ')')
}
};
var display = Typesetter <TFont, TGlyph> .CreateLine(mathList, _font, _context, LineStyle.Display);
Assert.Equal(LinePosition.Regular, display.LinePosition);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display.HasScript);
Assert.Equal(Range.UndefinedInt, display.IndexInParent);
Assert.Single(display.Displays);
var display2 = display.Displays[0] as ListDisplay <TFont, TGlyph>;
Assert.Equal(LinePosition.Regular, display2.LinePosition);
Assert.Equal(new PointF(), display2.Position);
Assert.Equal(new Range(0, 1), display2.Range);
Assert.False(display2.HasScript);
Assert.Equal(Range.UndefinedInt, display2.IndexInParent);
Assert.Equal(3, display2.Displays.Count);
var glyph = display2.Displays[0] as GlyphDisplay <TFont, TGlyph>;
Assert.Equal(new PointF(), glyph.Position);
Assert.Equal(Range.NotFound, glyph.Range);
Assert.False(glyph.HasScript);
var display3 = display2.Displays[1] as ListDisplay <TFont, TGlyph>;
Assert.Equal(LinePosition.Regular, display3.LinePosition);
Assertions.ApproximatePoint(10, 0, display3.Position, 0.01);
Assert.Equal(new Range(0, 1), display3.Range);
Assert.False(display3.HasScript);
Assert.Equal(Range.UndefinedInt, display3.IndexInParent);
Assert.Single(display3.Displays);
var line = display3.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(line.Atoms);
Assert.Equal("x", line.StringText());
Assert.Equal(new PointF(), line.Position);
Assert.False(line.HasScript);
var glyph2 = display2.Displays[2] as GlyphDisplay <TFont, TGlyph>;
Assertions.ApproximatePoint(20, 0, glyph2.Position, 0.01);
Assert.Equal(Range.NotFound, glyph2.Range);
Assert.False(glyph2.HasScript);
Assert.Equal(display.Ascent, display2.Ascent);
Assert.Equal(display.Descent, display2.Descent);
Assert.Equal(display.Width, display2.Width);
Assertions.ApproximatelyEqual(14, display.Ascent, 0.01);
Assertions.ApproximatelyEqual(4, display.Descent, 0.01);
Assertions.ApproximatelyEqual(30, display.Width, 0.01);
}
public void TestSuperSubscript()
{
var mathList = new MathList();
var x = MathAtoms.ForCharacter('x');
var superscript = new MathList {
MathAtoms.ForCharacter('2')
};
var subscript = new MathList {
MathAtoms.ForCharacter('1')
};
x.Subscript = subscript;
x.Superscript = superscript;
mathList.Add(x);
var display = Typesetter <TFont, TGlyph> .CreateLine(mathList, _font, _context, LineStyle.Display);
Assert.NotNull(display);
Assert.Equal(LinePosition.Regular, display.LinePosition);
Assert.Equal(new PointF(), display.Position);
Assert.Equal(new Range(0, 1), display.Range);
Assert.False(display.HasScript);
Assert.Equal(Range.UndefinedInt, display.IndexInParent);
Assert.Equal(3, display.Displays.Count());
var line = display.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(line.Atoms);
Assert.Equal("x", line.StringText());
Assert.Equal(new PointF(), line.Position);
Assert.True(line.HasScript);
var display2 = display.Displays[1] as ListDisplay <TFont, TGlyph>;
Assert.Equal(LinePosition.Superscript, display2.LinePosition);
Assertions.ApproximatePoint(10.32, 9.68, display2.Position, 0.01);
Assert.Equal(new Range(0, 1), display2.Range);
Assert.False(display2.HasScript);
Assert.Equal(0, display2.IndexInParent);
Assert.Single(display2.Displays);
var line2 = display2.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(line2.Atoms);
Assert.Equal("2", line2.StringText());
Assert.Equal(new PointF(), line2.Position);
Assert.False(line2.HasScript);
var display3 = display.Displays[2] as ListDisplay <TFont, TGlyph>;
Assert.Equal(LinePosition.Subscript, display3.LinePosition);
// Because both subscript and superscript are present, coords are
// different from the subscript-only case.
Assertions.ApproximatePoint(10, -6.12, display3.Position, 0.01);
Assert.Equal(new Range(0, 1), display3.Range);
Assert.False(display3.HasScript);
Assert.Equal(0, display3.IndexInParent);
Assert.Single(display3.Displays);
var line3 = display3.Displays[0] as TextLineDisplay <TFont, TGlyph>;
Assert.Single(line3.Atoms);
Assert.Equal("1", line3.StringText());
Assert.Equal(new PointF(), line3.Position);
Assert.False(line3.HasScript);
Assertions.ApproximatelyEqual(19.48, display.Ascent, 0.01);
Assertions.ApproximatelyEqual(8.92, display.Descent, 0.01);
Assertions.ApproximatelyEqual(17.32, display.Width, 0.01);
Assertions.ApproximatelyEqual(display.Ascent, display2.Position.Y + line2.Ascent, 0.01);
Assertions.ApproximatelyEqual(display.Descent, line3.Descent - display3.Position.Y, 0.01);
}