55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/*
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Copyright (c) 2013 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#include "util/test.h"
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#include "kernel/abstract.h"
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#include "library/update_expr.h"
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using namespace lean;
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static void tst1() {
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expr a = Const("a");
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expr b = Const("b");
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expr eq1 = Eq(a, b);
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expr eq2 = update_eq(eq1, a, a);
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expr eq3 = update_eq(eq1, a, b);
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lean_assert(eq_lhs(eq3) == a);
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lean_assert(eq_rhs(eq3) == b);
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lean_assert(is_eqp(eq1, eq3));
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}
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static void tst2() {
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expr a = Const("a");
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expr N = Const("N");
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expr t1 = Fun(a, N, a);
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expr b = Const("b");
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expr t2 = update_abstraction(t1, N, abst_body(t1));
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lean_assert(is_eqp(t1, t2));
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t2 = update_abstraction(t1, N, a);
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lean_assert(!is_eqp(t1, t2));
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lean_assert(abst_body(t2) == a);
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t1 = Pi(a, N, a);
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t2 = update_abstraction(t1, N, abst_body(t1));
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lean_assert(is_eqp(t1, t2));
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}
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void tst3() {
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expr a = Const("a");
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expr b = Const("b");
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expr f = Const("f");
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expr t1 = Let(a, b, f(a));
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expr t2 = update_let(t1, expr(), b, let_body(t1));
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lean_assert(is_eqp(t1, t2));
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t2 = update_let(t1, expr(), a, let_body(t1));
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lean_assert(!is_eqp(t1, t2));
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lean_assert(t2 == Let(a, a, f(a)));
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}
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int main() {
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tst1();
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tst2();
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tst3();
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return has_violations() ? 1 : 0;
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}
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