diff --git a/src/format/formulas.rs b/src/format/formulas.rs index cfeaf74..ba3c9f9 100644 --- a/src/format/formulas.rs +++ b/src/format/formulas.rs @@ -596,55 +596,48 @@ mod tests #[test] fn format_boolean() { - assert_eq!(format(true_()), "true"); - assert_eq!(format(false_()), "false"); + assert!(true_(), "true"); + assert!(false_(), "false"); } #[test] fn format_compare() { - assert_eq!(format(greater(a(), b())), "a > b"); - assert_eq!(format(less(a(), b())), "a < b"); - assert_eq!(format(less_or_equal(a(), b())), "a <= b"); - assert_eq!(format(greater_or_equal(a(), b())), "a >= b"); - assert_eq!(format(equal(a(), b())), "a = b"); - assert_eq!(format(not_equal(a(), b())), "a != b"); + assert!(greater(a(), b()), "a > b"); + assert!(less(a(), b()), "a < b"); + assert!(less_or_equal(a(), b()), "a <= b"); + assert!(greater_or_equal(a(), b()), "a >= b"); + assert!(equal(a(), b()), "a = b"); + assert!(not_equal(a(), b()), "a != b"); - assert_eq!(format( - greater(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))), + assert!(greater(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))), "(a + b) * c > |d - e|"); - assert_eq!(format( - less(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))), + assert!(less(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))), "(a + b) * c < |d - e|"); - assert_eq!(format( - less_or_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))), + assert!(less_or_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))), "(a + b) * c <= |d - e|"); - assert_eq!(format( - greater_or_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))), + assert!(greater_or_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))), "(a + b) * c >= |d - e|"); - assert_eq!(format( - equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))), + assert!(equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))), "(a + b) * c = |d - e|"); - assert_eq!(format( - not_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))), + assert!(not_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))), "(a + b) * c != |d - e|"); } #[test] fn format_predicate() { - assert_eq!(format(p()), "p"); - assert_eq!(format(predicate("predicate", vec![])), "predicate"); - assert_eq!(format(predicate("q", vec![a()])), "q(a)"); - assert_eq!(format(predicate("q", abc())), "q(a, b, c)"); - assert_eq!(format(predicate("predicate", abc())), "predicate(a, b, c)"); + assert!(p(), "p"); + assert!(predicate("predicate", vec![]), "predicate"); + assert!(predicate("q", vec![a()]), "q(a)"); + assert!(predicate("q", abc()), "q(a, b, c)"); + assert!(predicate("predicate", abc()), "predicate(a, b, c)"); - assert_eq!(format( - predicate("predicate", vec![ - exponentiate(absolute_value(multiply(a(), integer(-20))), integer(2)), - string("test"), - function("f", vec![multiply(add(b(), c()), - subtract(b(), c())), infimum(), variable("X")])])), + assert!(predicate("predicate", vec![ + exponentiate(absolute_value(multiply(a(), integer(-20))), integer(2)), + string("test"), + function("f", vec![multiply(add(b(), c()), + subtract(b(), c())), infimum(), variable("X")])]), "predicate(|a * -20| ** 2, \"test\", f((b + c) * (b - c), #inf, X))"); // TODO: escape predicates that start with capital letters or that conflict with keywords @@ -663,96 +656,92 @@ mod tests #[test] fn format_exists() { - assert_eq!(format(exists(vec![x()], p())), "exists X p"); - assert_eq!(format(exists(xyz(), p())), "exists X, Y, Z p"); + assert!(exists(vec![x()], p()), "exists X p"); + assert!(exists(xyz(), p()), "exists X, Y, Z p"); } #[test] fn format_for_all() { - assert_eq!(format(for_all(vec![x()], p())), "forall X p"); - assert_eq!(format(for_all(xyz(), p())), "forall X, Y, Z p"); + assert!(for_all(vec![x()], p()), "forall X p"); + assert!(for_all(xyz(), p()), "forall X, Y, Z p"); } #[test] fn format_not() { - assert_eq!(format(not(p())), "not p"); + assert!(not(p()), "not p"); } #[test] fn format_and() { - assert_eq!(format(and(vec![p()])), "p"); - assert_eq!(format(and(pqr())), "p and q and r"); + assert!(and(vec![p()]), "p"); + assert!(and(pqr()), "p and q and r"); } #[test] fn format_or() { - assert_eq!(format(or(vec![p()])), "p"); - assert_eq!(format(or(pqr())), "p or q or r"); + assert!(or(vec![p()]), "p"); + assert!(or(pqr()), "p or q or r"); } #[test] fn format_implies() { - assert_eq!(format(implies_right(p(), q())), "p -> q"); - assert_eq!(format(implies_left(p(), q())), "q <- p"); + assert!(implies_right(p(), q()), "p -> q"); + assert!(implies_left(p(), q()), "q <- p"); } #[test] fn format_if_and_only_if() { - assert_eq!(format(if_and_only_if(vec![p()])), "p"); - assert_eq!(format(if_and_only_if(vec![p(), q()])), "p <-> q"); - assert_eq!(format(if_and_only_if(pqr())), "p <-> q <-> r"); + assert!(if_and_only_if(vec![p()]), "p"); + assert!(if_and_only_if(vec![p(), q()]), "p <-> q"); + assert!(if_and_only_if(pqr()), "p <-> q <-> r"); } #[test] fn format_combination_boolean_and_lower() { // Boolean + not - assert_eq!(format(not(true_())), "not true"); - assert_eq!(format(not(false_())), "not false"); + assert!(not(true_()), "not true"); + assert!(not(false_()), "not false"); // Boolean + quantified formula - assert_eq!(format(exists(vec![x()], true_())), "exists X true"); - assert_eq!(format(exists(vec![x()], false_())), "exists X false"); - assert_eq!(format(exists(xyz(), true_())), "exists X, Y, Z true"); - assert_eq!(format(exists(xyz(), false_())), "exists X, Y, Z false"); - assert_eq!(format(for_all(vec![x()], true_())), "forall X true"); - assert_eq!(format(for_all(vec![x()], false_())), "forall X false"); - assert_eq!(format(for_all(xyz(), true_())), "forall X, Y, Z true"); - assert_eq!(format(for_all(xyz(), false_())), "forall X, Y, Z false"); + assert!(exists(vec![x()], true_()), "exists X true"); + assert!(exists(vec![x()], false_()), "exists X false"); + assert!(exists(xyz(), true_()), "exists X, Y, Z true"); + assert!(exists(xyz(), false_()), "exists X, Y, Z false"); + assert!(for_all(vec![x()], true_()), "forall X true"); + assert!(for_all(vec![x()], false_()), "forall X false"); + assert!(for_all(xyz(), true_()), "forall X, Y, Z true"); + assert!(for_all(xyz(), false_()), "forall X, Y, Z false"); // Boolean + and - assert_eq!(format(and(vec![true_()])), "true"); - assert_eq!(format(and(vec![true_(), true_(), true_()])), "true and true and true"); - assert_eq!(format(and(vec![false_()])), "false"); - assert_eq!(format(and(vec![false_(), false_(), false_()])), "false and false and false"); + assert!(and(vec![true_()]), "true"); + assert!(and(vec![true_(), true_(), true_()]), "true and true and true"); + assert!(and(vec![false_()]), "false"); + assert!(and(vec![false_(), false_(), false_()]), "false and false and false"); // Boolean + or - assert_eq!(format(or(vec![true_()])), "true"); - assert_eq!(format(or(vec![true_(), true_(), true_()])), "true or true or true"); - assert_eq!(format(or(vec![false_()])), "false"); - assert_eq!(format(or(vec![false_(), false_(), false_()])), "false or false or false"); + assert!(or(vec![true_()]), "true"); + assert!(or(vec![true_(), true_(), true_()]), "true or true or true"); + assert!(or(vec![false_()]), "false"); + assert!(or(vec![false_(), false_(), false_()]), "false or false or false"); // Boolean + implies - assert_eq!(format(implies_right(true_(), true_())), "true -> true"); - assert_eq!(format(implies_left(true_(), true_())), "true <- true"); - assert_eq!(format(implies_right(false_(), false_())), "false -> false"); - assert_eq!(format(implies_left(false_(), false_())), "false <- false"); + assert!(implies_right(true_(), true_()), "true -> true"); + assert!(implies_left(true_(), true_()), "true <- true"); + assert!(implies_right(false_(), false_()), "false -> false"); + assert!(implies_left(false_(), false_()), "false <- false"); // Boolean + if and only if - assert_eq!(format(if_and_only_if(vec![true_()])), "true"); - assert_eq!(format( - if_and_only_if(vec![true_(), true_(), true_()])), - "true <-> true <-> true"); - assert_eq!(format(if_and_only_if(vec![false_()])), "false"); - assert_eq!(format( - if_and_only_if(vec![false_(), false_(), false_()])), - "false <-> false <-> false"); + assert!(if_and_only_if(vec![true_()]), "true"); + assert!(if_and_only_if(vec![true_(), true_(), true_()]), "true <-> true <-> true"); + assert!(if_and_only_if(vec![false_()]), "false"); + assert!(if_and_only_if(vec![false_(), false_(), false_()]), "false <-> false <-> false"); } #[test] @@ -764,167 +753,119 @@ mod tests let term_4 = || negative(function("f", vec![integer(5), add(variable("X"), integer(3))])); // Compare + not - assert_eq!(format(not(greater(term_1(), term_2()))), "not (a + b) * c > |d - e|"); - assert_eq!(format(not(less(term_1(), term_2()))), "not (a + b) * c < |d - e|"); - assert_eq!(format(not(less_or_equal(term_1(), term_2()))), "not (a + b) * c <= |d - e|"); - assert_eq!(format(not(greater_or_equal(term_1(), term_2()))), "not (a + b) * c >= |d - e|"); - assert_eq!(format(not(equal(term_1(), term_2()))), "not (a + b) * c = |d - e|"); - assert_eq!(format(not(not_equal(term_1(), term_2()))), "not (a + b) * c != |d - e|"); + assert!(not(greater(term_1(), term_2())), "not (a + b) * c > |d - e|"); + assert!(not(less(term_1(), term_2())), "not (a + b) * c < |d - e|"); + assert!(not(less_or_equal(term_1(), term_2())), "not (a + b) * c <= |d - e|"); + assert!(not(greater_or_equal(term_1(), term_2())), "not (a + b) * c >= |d - e|"); + assert!(not(equal(term_1(), term_2())), "not (a + b) * c = |d - e|"); + assert!(not(not_equal(term_1(), term_2())), "not (a + b) * c != |d - e|"); // Compare + quantified formula - assert_eq!(format( - exists(vec![x()], greater(term_1(), term_2()))), - "exists X (a + b) * c > |d - e|"); - assert_eq!(format( - exists(vec![x()], less(term_1(), term_2()))), - "exists X (a + b) * c < |d - e|"); - assert_eq!(format( - exists(vec![x()], less_or_equal(term_1(), term_2()))), + assert!(exists(vec![x()], greater(term_1(), term_2())), "exists X (a + b) * c > |d - e|"); + assert!(exists(vec![x()], less(term_1(), term_2())), "exists X (a + b) * c < |d - e|"); + assert!(exists(vec![x()], less_or_equal(term_1(), term_2())), "exists X (a + b) * c <= |d - e|"); - assert_eq!(format( - exists(vec![x()], greater_or_equal(term_1(), term_2()))), + assert!(exists(vec![x()], greater_or_equal(term_1(), term_2())), "exists X (a + b) * c >= |d - e|"); - assert_eq!(format( - exists(vec![x()], equal(term_1(), term_2()))), - "exists X (a + b) * c = |d - e|"); - assert_eq!(format( - exists(vec![x()], not_equal(term_1(), term_2()))), + assert!(exists(vec![x()], equal(term_1(), term_2())), "exists X (a + b) * c = |d - e|"); + assert!(exists(vec![x()], not_equal(term_1(), term_2())), "exists X (a + b) * c != |d - e|"); - assert_eq!(format( - for_all(vec![x()], greater(term_1(), term_2()))), - "forall X (a + b) * c > |d - e|"); - assert_eq!(format( - for_all(vec![x()], less(term_1(), term_2()))), - "forall X (a + b) * c < |d - e|"); - assert_eq!(format( - for_all(vec![x()], less_or_equal(term_1(), term_2()))), + assert!(for_all(vec![x()], greater(term_1(), term_2())), "forall X (a + b) * c > |d - e|"); + assert!(for_all(vec![x()], less(term_1(), term_2())), "forall X (a + b) * c < |d - e|"); + assert!(for_all(vec![x()], less_or_equal(term_1(), term_2())), "forall X (a + b) * c <= |d - e|"); - assert_eq!(format( - for_all(vec![x()], greater_or_equal(term_1(), term_2()))), + assert!(for_all(vec![x()], greater_or_equal(term_1(), term_2())), "forall X (a + b) * c >= |d - e|"); - assert_eq!(format( - for_all(vec![x()], equal(term_1(), term_2()))), - "forall X (a + b) * c = |d - e|"); - assert_eq!(format( - for_all(vec![x()], not_equal(term_1(), term_2()))), + assert!(for_all(vec![x()], equal(term_1(), term_2())), "forall X (a + b) * c = |d - e|"); + assert!(for_all(vec![x()], not_equal(term_1(), term_2())), "forall X (a + b) * c != |d - e|"); // Compare + and - assert_eq!(format( - and(vec![greater(term_1(), term_2()), greater(term_3(), term_4()), - greater(term_2(), term_4())])), + assert!(and(vec![greater(term_1(), term_2()), greater(term_3(), term_4()), + greater(term_2(), term_4())]), "(a + b) * c > |d - e| and a ** b ** c > -f(5, X + 3) and |d - e| > -f(5, X + 3)"); - assert_eq!(format( - and(vec![less(term_1(), term_2()), less(term_3(), term_4()), - less(term_2(), term_4())])), + assert!(and(vec![less(term_1(), term_2()), less(term_3(), term_4()), + less(term_2(), term_4())]), "(a + b) * c < |d - e| and a ** b ** c < -f(5, X + 3) and |d - e| < -f(5, X + 3)"); - assert_eq!(format( - and(vec![less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()), - less_or_equal(term_2(), term_4())])), + assert!(and(vec![less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()), + less_or_equal(term_2(), term_4())]), "(a + b) * c <= |d - e| and a ** b ** c <= -f(5, X + 3) and |d - e| <= -f(5, X + 3)"); - assert_eq!(format( - and(vec![greater_or_equal(term_1(), term_2()), greater_or_equal(term_3(), term_4()), - greater_or_equal(term_2(), term_4())])), + assert!(and(vec![greater_or_equal(term_1(), term_2()), greater_or_equal(term_3(), term_4()), + greater_or_equal(term_2(), term_4())]), "(a + b) * c >= |d - e| and a ** b ** c >= -f(5, X + 3) and |d - e| >= -f(5, X + 3)"); - assert_eq!(format( - and(vec![equal(term_1(), term_2()), equal(term_3(), term_4()), - equal(term_2(), term_4())])), + assert!(and(vec![equal(term_1(), term_2()), equal(term_3(), term_4()), + equal(term_2(), term_4())]), "(a + b) * c = |d - e| and a ** b ** c = -f(5, X + 3) and |d - e| = -f(5, X + 3)"); - assert_eq!(format( - and(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()), - not_equal(term_2(), term_4())])), + assert!(and(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()), + not_equal(term_2(), term_4())]), "(a + b) * c != |d - e| and a ** b ** c != -f(5, X + 3) and |d - e| != -f(5, X + 3)"); // Compare + or - assert_eq!(format( - or(vec![greater(term_1(), term_2()), greater(term_3(), term_4()), - greater(term_2(), term_4())])), + assert!(or(vec![greater(term_1(), term_2()), greater(term_3(), term_4()), + greater(term_2(), term_4())]), "(a + b) * c > |d - e| or a ** b ** c > -f(5, X + 3) or |d - e| > -f(5, X + 3)"); - assert_eq!(format( - or(vec![less(term_1(), term_2()), less(term_3(), term_4()), - less(term_2(), term_4())])), + assert!(or(vec![less(term_1(), term_2()), less(term_3(), term_4()), + less(term_2(), term_4())]), "(a + b) * c < |d - e| or a ** b ** c < -f(5, X + 3) or |d - e| < -f(5, X + 3)"); - assert_eq!(format( - or(vec![less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()), - less_or_equal(term_2(), term_4())])), + assert!(or(vec![less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()), + less_or_equal(term_2(), term_4())]), "(a + b) * c <= |d - e| or a ** b ** c <= -f(5, X + 3) or |d - e| <= -f(5, X + 3)"); - assert_eq!(format( - or(vec![greater_or_equal(term_1(), term_2()), greater_or_equal(term_3(), term_4()), - greater_or_equal(term_2(), term_4())])), + assert!(or(vec![greater_or_equal(term_1(), term_2()), greater_or_equal(term_3(), term_4()), + greater_or_equal(term_2(), term_4())]), "(a + b) * c >= |d - e| or a ** b ** c >= -f(5, X + 3) or |d - e| >= -f(5, X + 3)"); - assert_eq!(format( - or(vec![equal(term_1(), term_2()), equal(term_3(), term_4()), - equal(term_2(), term_4())])), + assert!(or(vec![equal(term_1(), term_2()), equal(term_3(), term_4()), + equal(term_2(), term_4())]), "(a + b) * c = |d - e| or a ** b ** c = -f(5, X + 3) or |d - e| = -f(5, X + 3)"); - assert_eq!(format( - or(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()), - not_equal(term_2(), term_4())])), + assert!(or(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()), + not_equal(term_2(), term_4())]), "(a + b) * c != |d - e| or a ** b ** c != -f(5, X + 3) or |d - e| != -f(5, X + 3)"); // Compare + implies - assert_eq!(format( - implies_right(greater(term_1(), term_2()), greater(term_3(), term_4()))), + assert!(implies_right(greater(term_1(), term_2()), greater(term_3(), term_4())), "(a + b) * c > |d - e| -> a ** b ** c > -f(5, X + 3)"); - assert_eq!(format( - implies_right(less(term_1(), term_2()), less(term_3(), term_4()))), + assert!(implies_right(less(term_1(), term_2()), less(term_3(), term_4())), "(a + b) * c < |d - e| -> a ** b ** c < -f(5, X + 3)"); - assert_eq!(format( - implies_right(less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()))), + assert!(implies_right(less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4())), "(a + b) * c <= |d - e| -> a ** b ** c <= -f(5, X + 3)"); - assert_eq!(format( - implies_right(greater_or_equal(term_1(), term_2()), - greater_or_equal(term_3(), term_4()))), + assert!(implies_right(greater_or_equal(term_1(), term_2()), + greater_or_equal(term_3(), term_4())), "(a + b) * c >= |d - e| -> a ** b ** c >= -f(5, X + 3)"); - assert_eq!(format( - implies_right(equal(term_1(), term_2()), equal(term_3(), term_4()))), + assert!(implies_right(equal(term_1(), term_2()), equal(term_3(), term_4())), "(a + b) * c = |d - e| -> a ** b ** c = -f(5, X + 3)"); - assert_eq!(format( - implies_right(not_equal(term_1(), term_2()), not_equal(term_3(), term_4()))), + assert!(implies_right(not_equal(term_1(), term_2()), not_equal(term_3(), term_4())), "(a + b) * c != |d - e| -> a ** b ** c != -f(5, X + 3)"); - assert_eq!(format( - implies_left(greater(term_1(), term_2()), greater(term_3(), term_4()))), + assert!(implies_left(greater(term_1(), term_2()), greater(term_3(), term_4())), "a ** b ** c > -f(5, X + 3) <- (a + b) * c > |d - e|"); - assert_eq!(format( - implies_left(less(term_1(), term_2()), less(term_3(), term_4()))), + assert!(implies_left(less(term_1(), term_2()), less(term_3(), term_4())), "a ** b ** c < -f(5, X + 3) <- (a + b) * c < |d - e|"); - assert_eq!(format( - implies_left(less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()))), + assert!(implies_left(less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4())), "a ** b ** c <= -f(5, X + 3) <- (a + b) * c <= |d - e|"); - assert_eq!(format( - implies_left(greater_or_equal(term_1(), term_2()), - greater_or_equal(term_3(), term_4()))), + assert!(implies_left(greater_or_equal(term_1(), term_2()), + greater_or_equal(term_3(), term_4())), "a ** b ** c >= -f(5, X + 3) <- (a + b) * c >= |d - e|"); - assert_eq!(format( - implies_left(equal(term_1(), term_2()), equal(term_3(), term_4()))), + assert!(implies_left(equal(term_1(), term_2()), equal(term_3(), term_4())), "a ** b ** c = -f(5, X + 3) <- (a + b) * c = |d - e|"); - assert_eq!(format( - implies_left(not_equal(term_1(), term_2()), not_equal(term_3(), term_4()))), + assert!(implies_left(not_equal(term_1(), term_2()), not_equal(term_3(), term_4())), "a ** b ** c != -f(5, X + 3) <- (a + b) * c != |d - e|"); // Compare + if and only if - assert_eq!(format( - if_and_only_if(vec![greater(term_1(), term_2()), greater(term_3(), term_4()), - greater(term_2(), term_4())])), + assert!(if_and_only_if(vec![greater(term_1(), term_2()), greater(term_3(), term_4()), + greater(term_2(), term_4())]), "(a + b) * c > |d - e| <-> a ** b ** c > -f(5, X + 3) <-> |d - e| > -f(5, X + 3)"); - assert_eq!(format( - if_and_only_if(vec![less(term_1(), term_2()), less(term_3(), term_4()), - less(term_2(), term_4())])), + assert!(if_and_only_if(vec![less(term_1(), term_2()), less(term_3(), term_4()), + less(term_2(), term_4())]), "(a + b) * c < |d - e| <-> a ** b ** c < -f(5, X + 3) <-> |d - e| < -f(5, X + 3)"); - assert_eq!(format( - if_and_only_if(vec![less_or_equal(term_1(), term_2()), - less_or_equal(term_3(), term_4()), less_or_equal(term_2(), term_4())])), + assert!(if_and_only_if(vec![less_or_equal(term_1(), term_2()), + less_or_equal(term_3(), term_4()), less_or_equal(term_2(), term_4())]), "(a + b) * c <= |d - e| <-> a ** b ** c <= -f(5, X + 3) <-> |d - e| <= -f(5, X + 3)"); - assert_eq!(format( - if_and_only_if(vec![greater_or_equal(term_1(), term_2()), - greater_or_equal(term_3(), term_4()), greater_or_equal(term_2(), term_4())])), + assert!(if_and_only_if(vec![greater_or_equal(term_1(), term_2()), + greater_or_equal(term_3(), term_4()), greater_or_equal(term_2(), term_4())]), "(a + b) * c >= |d - e| <-> a ** b ** c >= -f(5, X + 3) <-> |d - e| >= -f(5, X + 3)"); - assert_eq!(format( - if_and_only_if(vec![equal(term_1(), term_2()), equal(term_3(), term_4()), - equal(term_2(), term_4())])), + assert!(if_and_only_if(vec![equal(term_1(), term_2()), equal(term_3(), term_4()), + equal(term_2(), term_4())]), "(a + b) * c = |d - e| <-> a ** b ** c = -f(5, X + 3) <-> |d - e| = -f(5, X + 3)"); - assert_eq!(format( - if_and_only_if(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()), - not_equal(term_2(), term_4())])), + assert!(if_and_only_if(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()), + not_equal(term_2(), term_4())]), "(a + b) * c != |d - e| <-> a ** b ** c != -f(5, X + 3) <-> |d - e| != -f(5, X + 3)"); }