Rewrite tests for clarity

src/format/formulas.rs

@@ -596,55 +596,48 @@ mod tests
 	#[test]
 	fn format_boolean()
 	{
-		assert_eq!(format(true_()), "true");
+		assert!(true_(), "true");
-		assert_eq!(format(false_()), "false");
+		assert!(false_(), "false");
 	}
 
 	#[test]
 	fn format_compare()
 	{
-		assert_eq!(format(greater(a(), b())), "a > b");
+		assert!(greater(a(), b()), "a > b");
-		assert_eq!(format(less(a(), b())), "a < b");
+		assert!(less(a(), b()), "a < b");
-		assert_eq!(format(less_or_equal(a(), b())), "a <= b");
+		assert!(less_or_equal(a(), b()), "a <= b");
-		assert_eq!(format(greater_or_equal(a(), b())), "a >= b");
+		assert!(greater_or_equal(a(), b()), "a >= b");
-		assert_eq!(format(equal(a(), b())), "a = b");
+		assert!(equal(a(), b()), "a = b");
-		assert_eq!(format(not_equal(a(), b())), "a != b");
+		assert!(not_equal(a(), b()), "a != b");
 
-		assert_eq!(format(
+		assert!(greater(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))),
-			greater(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))),
 			"(a + b) * c > |d - e|");
-		assert_eq!(format(
+		assert!(less(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))),
-			less(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))),
 			"(a + b) * c < |d - e|");
-		assert_eq!(format(
+		assert!(less_or_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))),
-			less_or_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))),
 			"(a + b) * c <= |d - e|");
-		assert_eq!(format(
+		assert!(greater_or_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))),
-			greater_or_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))),
 			"(a + b) * c >= |d - e|");
-		assert_eq!(format(
+		assert!(equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))),
-			equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e())))),
 			"(a + b) * c = |d - e|");
-		assert_eq!(format(
+		assert!(not_equal(multiply(add(a(), b()), c()), absolute_value(subtract(d(), e()))),
-			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!(p(), "p");
-		assert_eq!(format(predicate("predicate", vec![])), "predicate");
+		assert!(predicate("predicate", vec![]), "predicate");
-		assert_eq!(format(predicate("q", vec![a()])), "q(a)");
+		assert!(predicate("q", vec![a()]), "q(a)");
-		assert_eq!(format(predicate("q", abc())), "q(a, b, c)");
+		assert!(predicate("q", abc()), "q(a, b, c)");
-		assert_eq!(format(predicate("predicate", abc())), "predicate(a, b, c)");
+		assert!(predicate("predicate", abc()), "predicate(a, b, c)");
 
-		assert_eq!(format(
+		assert!(predicate("predicate", vec![
-			predicate("predicate", vec![
+			exponentiate(absolute_value(multiply(a(), integer(-20))), integer(2)),
-				exponentiate(absolute_value(multiply(a(), integer(-20))), integer(2)),
+			string("test"),
-				string("test"),
+			function("f", vec![multiply(add(b(), c()),
-				function("f", vec![multiply(add(b(), c()),
+				subtract(b(), c())), infimum(), variable("X")])]),
-					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!(exists(vec![x()], p()), "exists X p");
-		assert_eq!(format(exists(xyz(), p())), "exists X, Y, Z 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!(for_all(vec![x()], p()), "forall X p");
-		assert_eq!(format(for_all(xyz(), p())), "forall X, Y, Z 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!(and(vec![p()]), "p");
-		assert_eq!(format(and(pqr())), "p and q and r");
+		assert!(and(pqr()), "p and q and r");
 	}
 
 	#[test]
 	fn format_or()
 	{
-		assert_eq!(format(or(vec![p()])), "p");
+		assert!(or(vec![p()]), "p");
-		assert_eq!(format(or(pqr())), "p or q or r");
+		assert!(or(pqr()), "p or q or r");
 	}
 
 	#[test]
 	fn format_implies()
 	{
-		assert_eq!(format(implies_right(p(), q())), "p -> q");
+		assert!(implies_right(p(), q()), "p -> q");
-		assert_eq!(format(implies_left(p(), q())), "q <- p");
+		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!(if_and_only_if(vec![p()]), "p");
-		assert_eq!(format(if_and_only_if(vec![p(), q()])), "p <-> q");
+		assert!(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(pqr()), "p <-> q <-> r");
 	}
 
 	#[test]
 	fn format_combination_boolean_and_lower()
 	{
 		// Boolean + not
-		assert_eq!(format(not(true_())), "not true");
+		assert!(not(true_()), "not true");
-		assert_eq!(format(not(false_())), "not false");
+		assert!(not(false_()), "not false");
 
 		// Boolean + quantified formula
-		assert_eq!(format(exists(vec![x()], true_())), "exists X true");
+		assert!(exists(vec![x()], true_()), "exists X true");
-		assert_eq!(format(exists(vec![x()], false_())), "exists X false");
+		assert!(exists(vec![x()], false_()), "exists X false");
-		assert_eq!(format(exists(xyz(), true_())), "exists X, Y, Z true");
+		assert!(exists(xyz(), true_()), "exists X, Y, Z true");
-		assert_eq!(format(exists(xyz(), false_())), "exists X, Y, Z false");
+		assert!(exists(xyz(), false_()), "exists X, Y, Z false");
-		assert_eq!(format(for_all(vec![x()], true_())), "forall X true");
+		assert!(for_all(vec![x()], true_()), "forall X true");
-		assert_eq!(format(for_all(vec![x()], false_())), "forall X false");
+		assert!(for_all(vec![x()], false_()), "forall X false");
-		assert_eq!(format(for_all(xyz(), true_())), "forall X, Y, Z true");
+		assert!(for_all(xyz(), true_()), "forall X, Y, Z true");
-		assert_eq!(format(for_all(xyz(), false_())), "forall X, Y, Z false");
+		assert!(for_all(xyz(), false_()), "forall X, Y, Z false");
 
 		// Boolean + and
-		assert_eq!(format(and(vec![true_()])), "true");
+		assert!(and(vec![true_()]), "true");
-		assert_eq!(format(and(vec![true_(), true_(), true_()])), "true and true and true");
+		assert!(and(vec![true_(), true_(), true_()]), "true and true and true");
-		assert_eq!(format(and(vec![false_()])), "false");
+		assert!(and(vec![false_()]), "false");
-		assert_eq!(format(and(vec![false_(), false_(), false_()])), "false and false and false");
+		assert!(and(vec![false_(), false_(), false_()]), "false and false and false");
 
 		// Boolean + or
-		assert_eq!(format(or(vec![true_()])), "true");
+		assert!(or(vec![true_()]), "true");
-		assert_eq!(format(or(vec![true_(), true_(), true_()])), "true or true or true");
+		assert!(or(vec![true_(), true_(), true_()]), "true or true or true");
-		assert_eq!(format(or(vec![false_()])), "false");
+		assert!(or(vec![false_()]), "false");
-		assert_eq!(format(or(vec![false_(), false_(), false_()])), "false or false or false");
+		assert!(or(vec![false_(), false_(), false_()]), "false or false or false");
 
 		// Boolean + implies
-		assert_eq!(format(implies_right(true_(), true_())), "true -> true");
+		assert!(implies_right(true_(), true_()), "true -> true");
-		assert_eq!(format(implies_left(true_(), true_())), "true <- true");
+		assert!(implies_left(true_(), true_()), "true <- true");
-		assert_eq!(format(implies_right(false_(), false_())), "false -> false");
+		assert!(implies_right(false_(), false_()), "false -> false");
-		assert_eq!(format(implies_left(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!(if_and_only_if(vec![true_()]), "true");
-		assert_eq!(format(
+		assert!(if_and_only_if(vec![true_(), true_(), true_()]), "true <-> true <-> true");
-			if_and_only_if(vec![true_(), true_(), true_()])),
+		assert!(if_and_only_if(vec![false_()]), "false");
-			"true <-> true <-> true");
+		assert!(if_and_only_if(vec![false_(), false_(), false_()]), "false <-> false <-> false");
-		assert_eq!(format(if_and_only_if(vec![false_()])), "false");
-		assert_eq!(format(
-			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!(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!(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!(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!(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!(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(not_equal(term_1(), term_2())), "not (a + b) * c != |d - e|");
 
 		// Compare + quantified formula
-		assert_eq!(format(
+		assert!(exists(vec![x()], greater(term_1(), term_2())), "exists X (a + b) * c > |d - e|");
-			exists(vec![x()], greater(term_1(), term_2()))),
+		assert!(exists(vec![x()], less(term_1(), term_2())), "exists X (a + b) * c < |d - e|");
-			"exists X (a + b) * c > |d - e|");
+		assert!(exists(vec![x()], less_or_equal(term_1(), term_2())),
-		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()))),
 			"exists X (a + b) * c <= |d - e|");
-		assert_eq!(format(
+		assert!(exists(vec![x()], greater_or_equal(term_1(), term_2())),
-			exists(vec![x()], greater_or_equal(term_1(), term_2()))),
 			"exists X (a + b) * c >= |d - e|");
-		assert_eq!(format(
+		assert!(exists(vec![x()], equal(term_1(), term_2())), "exists X (a + b) * c = |d - e|");
-			exists(vec![x()], equal(term_1(), term_2()))),
+		assert!(exists(vec![x()], not_equal(term_1(), term_2())),
-			"exists X (a + b) * c = |d - e|");
-		assert_eq!(format(
-			exists(vec![x()], not_equal(term_1(), term_2()))),
 			"exists X (a + b) * c != |d - e|");
-		assert_eq!(format(
+		assert!(for_all(vec![x()], greater(term_1(), term_2())), "forall X (a + b) * c > |d - e|");
-			for_all(vec![x()], greater(term_1(), term_2()))),
+		assert!(for_all(vec![x()], less(term_1(), term_2())), "forall X (a + b) * c < |d - e|");
-			"forall X (a + b) * c > |d - e|");
+		assert!(for_all(vec![x()], less_or_equal(term_1(), term_2())),
-		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()))),
 			"forall X (a + b) * c <= |d - e|");
-		assert_eq!(format(
+		assert!(for_all(vec![x()], greater_or_equal(term_1(), term_2())),
-			for_all(vec![x()], greater_or_equal(term_1(), term_2()))),
 			"forall X (a + b) * c >= |d - e|");
-		assert_eq!(format(
+		assert!(for_all(vec![x()], equal(term_1(), term_2())), "forall X (a + b) * c = |d - e|");
-			for_all(vec![x()], equal(term_1(), term_2()))),
+		assert!(for_all(vec![x()], not_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()))),
 			"forall X (a + b) * c != |d - e|");
 
 		// Compare + and
-		assert_eq!(format(
+		assert!(and(vec![greater(term_1(), term_2()), greater(term_3(), term_4()),
-			and(vec![greater(term_1(), term_2()), greater(term_3(), term_4()),
+			greater(term_2(), 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(
+		assert!(and(vec![less(term_1(), term_2()), less(term_3(), term_4()),
-			and(vec![less(term_1(), term_2()), less(term_3(), term_4()),
+			less(term_2(), 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(
+		assert!(and(vec![less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()),
-			and(vec![less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()),
+			less_or_equal(term_2(), 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(
+		assert!(and(vec![greater_or_equal(term_1(), term_2()), greater_or_equal(term_3(), term_4()),
-			and(vec![greater_or_equal(term_1(), term_2()), greater_or_equal(term_3(), term_4()),
+			greater_or_equal(term_2(), 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(
+		assert!(and(vec![equal(term_1(), term_2()), equal(term_3(), term_4()),
-			and(vec![equal(term_1(), term_2()), equal(term_3(), term_4()),
+			equal(term_2(), 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(
+		assert!(and(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()),
-			and(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()),
+			not_equal(term_2(), 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(
+		assert!(or(vec![greater(term_1(), term_2()), greater(term_3(), term_4()),
-			or(vec![greater(term_1(), term_2()), greater(term_3(), term_4()),
+			greater(term_2(), 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(
+		assert!(or(vec![less(term_1(), term_2()), less(term_3(), term_4()),
-			or(vec![less(term_1(), term_2()), less(term_3(), term_4()),
+			less(term_2(), 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(
+		assert!(or(vec![less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()),
-			or(vec![less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4()),
+			less_or_equal(term_2(), 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(
+		assert!(or(vec![greater_or_equal(term_1(), term_2()), greater_or_equal(term_3(), term_4()),
-			or(vec![greater_or_equal(term_1(), term_2()), greater_or_equal(term_3(), term_4()),
+			greater_or_equal(term_2(), 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(
+		assert!(or(vec![equal(term_1(), term_2()), equal(term_3(), term_4()),
-			or(vec![equal(term_1(), term_2()), equal(term_3(), term_4()),
+			equal(term_2(), 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(
+		assert!(or(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()),
-			or(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()),
+			not_equal(term_2(), 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(
+		assert!(implies_right(greater(term_1(), term_2()), greater(term_3(), term_4())),
-			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(
+		assert!(implies_right(less(term_1(), term_2()), less(term_3(), term_4())),
-			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(
+		assert!(implies_right(less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4())),
-			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(
+		assert!(implies_right(greater_or_equal(term_1(), term_2()),
-			implies_right(greater_or_equal(term_1(), term_2()),
+			greater_or_equal(term_3(), term_4())),
-				greater_or_equal(term_3(), term_4()))),
 			"(a + b) * c >= |d - e| -> a ** b ** c >= -f(5, X + 3)");
-		assert_eq!(format(
+		assert!(implies_right(equal(term_1(), term_2()), equal(term_3(), term_4())),
-			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(
+		assert!(implies_right(not_equal(term_1(), term_2()), not_equal(term_3(), term_4())),
-			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(
+		assert!(implies_left(greater(term_1(), term_2()), greater(term_3(), term_4())),
-			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(
+		assert!(implies_left(less(term_1(), term_2()), less(term_3(), term_4())),
-			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(
+		assert!(implies_left(less_or_equal(term_1(), term_2()), less_or_equal(term_3(), term_4())),
-			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(
+		assert!(implies_left(greater_or_equal(term_1(), term_2()),
-			implies_left(greater_or_equal(term_1(), term_2()),
+			greater_or_equal(term_3(), term_4())),
-				greater_or_equal(term_3(), term_4()))),
 			"a ** b ** c >= -f(5, X + 3) <- (a + b) * c >= |d - e|");
-		assert_eq!(format(
+		assert!(implies_left(equal(term_1(), term_2()), equal(term_3(), term_4())),
-			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(
+		assert!(implies_left(not_equal(term_1(), term_2()), not_equal(term_3(), term_4())),
-			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(
+		assert!(if_and_only_if(vec![greater(term_1(), term_2()), greater(term_3(), term_4()),
-			if_and_only_if(vec![greater(term_1(), term_2()), greater(term_3(), term_4()),
+			greater(term_2(), 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(
+		assert!(if_and_only_if(vec![less(term_1(), term_2()), less(term_3(), term_4()),
-			if_and_only_if(vec![less(term_1(), term_2()), less(term_3(), term_4()),
+			less(term_2(), 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(
+		assert!(if_and_only_if(vec![less_or_equal(term_1(), term_2()),
-			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())]),
-				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(
+		assert!(if_and_only_if(vec![greater_or_equal(term_1(), term_2()),
-			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())]),
-				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(
+		assert!(if_and_only_if(vec![equal(term_1(), term_2()), equal(term_3(), term_4()),
-			if_and_only_if(vec![equal(term_1(), term_2()), equal(term_3(), term_4()),
+			equal(term_2(), 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(
+		assert!(if_and_only_if(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()),
-			if_and_only_if(vec![not_equal(term_1(), term_2()), not_equal(term_3(), term_4()),
+			not_equal(term_2(), 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)");
 	}