require 'rspec' require 'asciimath' TEST_CASES = { 'x+b/(2a)<+-sqrt((b^2)/(4a^2)-c/a)' => '

x + \frac{b}{2 a} < \pm \sqrt{\frac{b^{2}}{4 a^{2}} - \frac{c}{a}}

', 'a^2 + b^2 = c^2' => '

a^{2} + b^{2} = c^{2}

', 'x = (-b+-sqrt(b^2-4ac))/(2a)' => '

x = \frac{- b \pm \sqrt{b^{2} -4 a c}}{2 a}

', 'm = (y_2 - y_1)/(x_2 - x_1) = (Deltay)/(Deltax)' => '

m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{Δ y}{Δ x}

', 'f\'(x) = lim_(Deltax->0)(f(x+Deltax)-f(x))/(Deltax)' => '

f \' (x) = lim_{Δ x \to 0} \frac{f (x + Δ x) - f (x)}{Δ x}

', 'd/dx [x^n] = nx^(n - 1)' => '

\frac{d}{dx} [x^{n}] = n x^{n - 1}

', 'int_a^b f(x) dx = [F(x)]_a^b = F(b) - F(a)' => '

\int_{a}^{b} f (x) dx = {[F (x)]}_{a}^{b} = F (b) - F (a)

', 'int_a^b f(x) dx = f(c)(b - a)' => '

\int_{a}^{b} f (x) dx = f (c) (b - a)

', 'ax^2 + bx + c = 0' => '

a x^{2} + b x + c = 0

', '"average value"=1/(b-a) int_a^b f(x) dx' => '

average value = \frac{1}{b - a} \int_{a}^{b} f (x) dx

', 'd/dx[int_a^x f(t) dt] = f(x)' => '

\frac{d}{dx} [\int_{a}^{x} f (t) dt] = f (x)

', 'hat(ab) bar(xy) ul(A) vec(v)' => '

\hat{a b} \bar{x y} \underline{A} \vec{v}

', 'z_12^34' => '

z_{12}^{34}

', 'lim_(x->c)(f(x)-f(c))/(x-c)' => '

lim_{x \to c} \frac{f (x) - f (c)}{x - c}

', 'int_0^(pi/2) g(x) dx' => '

\int_{0}^{\frac{π}{2}} g (x) dx

', 'sum_(n=0)^oo a_n' => '

\sum_{n = 0}^{\infty} a_{n}

', '((1,2,3),(4,5,6),(7,8,9))' => '

(\begin{matrix} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \end{matrix})

', '|(a,b),(c,d)|=ad-bc' => '

| \begin{matrix} a & b \\ c & d \end{matrix} | = a d - b c

', '((a_(11), cdots , a_(1n)),(vdots, ddots, vdots),(a_(m1), cdots , a_(mn)))' => '

(\begin{matrix} a_{11} & \dots & a_{1 n} \\ ⋮ & ⋱ & ⋮ \\ a_{m 1} & \dots & a_{m n} \end{matrix})

', 'sum_(k=1)^n k = 1+2+ cdots +n=(n(n+1))/2' => '

\sum_{k = 1}^{n} k = 1 + 2 + \dots + n = \frac{n (n + 1)}{2}

', } module AsciimathHelper def expect_mathml(asciimath, mathml) expect(Asciimath.parse(asciimath).to_mathml).to eq(mathml) end end RSpec.configure do |c| c.include AsciimathHelper end describe "Asciimath::MathMLBuilder" do TEST_CASES.each_pair do |asciimath, mathml| it "should produce identical output to asciimathml.js for '#{asciimath}'" do expect_mathml(asciimath, mathml) end end it 'should not generate mo elements for {: and :}' do expect_mathml '{:(a,b),(c,d):}', '

\begin{matrix} a & b \\ c & d \end{matrix}

' end end