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PLtests.cpp
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#include "stdafx.h"
namespace PocoLithp {
namespace Test {
void plithp_test() {
std::string line;
//LithpEnvironment _env, *env = &_env; add_globals(_env);
LithpEnvironment *env_obj = new LithpEnvironment();
add_globals(*env_obj);
Env_p env(env_obj);
auto start = std::chrono::steady_clock::now();
evalTimed(read("(define multiply-by (lambda (n) (lambda (y) (* y n))))"), env);
evalTimed(read("(define doubler (multiply-by 2))"), env);
auto step1 = std::chrono::steady_clock::now();
LithpCell result = evalTimed(read("(doubler 4)"), env);
auto step2 = std::chrono::steady_clock::now();
std::cout << to_string(result) << "\n";
std::cout << "parse time: " << std::chrono::duration_cast<std::chrono::milliseconds>(step1 - start).count() << "ms\n";
std::cout << "run time: " << std::chrono::duration_cast<std::chrono::milliseconds>(step2 - step1).count() << "ms\n";
}
void plithp_fac_test() {
std::string line;
//LithpEnvironment _env, *env = &_env; add_globals(_env);
LithpEnvironment *env_obj = new LithpEnvironment();
add_globals(*env_obj);
Env_p env(env_obj);
auto start = std::chrono::steady_clock::now();
LithpCell result = evalTimed(read(
"(begin "
" (define fact (lambda (n) (if (<= n 1) 1 (* n (fact (- n 1))))))"
" (fact 50)"
")"), env);
auto step1 = std::chrono::steady_clock::now();
std::cout << "(fact 50) => " << to_string(result) << "\n";
std::cout << " fact run time: " << std::chrono::duration_cast<std::chrono::milliseconds>(step1 - start).count() << "ms\n";
}
void plithp_fib_test() {
// Test a fibonacci function
// ((def fib #N :: (
// (if (< N 2) (
// (1)
// ) (else (
// (+ (fib (- N 1)) (fib (- N 2)))
// )))
// ))
// (var X 10)
// (print "Fac of" (get X) (fac (get X)))
// )
std::string line;
auto start = std::chrono::steady_clock::now();
//LithpEnvironment _env, *env = &_env; add_globals(_env);
LithpEnvironment *env_obj = new LithpEnvironment();
add_globals(*env_obj);
Env_p env(env_obj);
const LithpCell &result = evalTimed(read(
"(begin "
" (define fib (lambda (n) (if (< n 2) 1 (+ (fib (- n 1)) (fib (- n 2))))))"
" (fib 12)"
")"), env);
auto step1 = std::chrono::steady_clock::now();
std::cout << "(fib 12) => " << to_string(result) << "\n";
std::cout << " fib run time: " << std::chrono::duration_cast<std::chrono::milliseconds>(step1 - start).count() << "ms\n";
}
////////////////////// unit tests
unsigned g_test_count; // count of number of unit tests executed
unsigned g_fault_count; // count of number of unit tests that fail
template <typename T1, typename T2>
void test_equal_(const T1 & value, const T2 & expected_value, const char * file, int line, const std::string &code)
{
++g_test_count;
std::cerr
<< code << " : "
<< " expected " << expected_value
<< ", got " << value;
if (value != expected_value) {
++g_fault_count;
std::cerr << " - FAIL\n";
} else {
std::cerr << " - success\n";
}
}
// write a message to std::cout if value != expected_value
#define TEST_EQUAL(value, expected_value, code) test_equal_(value, expected_value, __FILE__, __LINE__, code)
// evaluate the given Lisp expression and compare the result against the given expected_result
#define TEST(expr, expected_result) TEST_EQUAL(to_string(evalTimed(read(expr), global_env)), expected_result, expr)
unsigned plithp_abs_test() {
//LithpEnvironment global_env; add_globals(global_env);
LithpEnvironment *global_env_obj = new LithpEnvironment();
add_globals(*global_env_obj);
Env_p global_env(global_env_obj);
TEST("(define abs (lambda (n) ((if (> n 0) + -) 0 n)))", "<Lambda>");
TEST("(list (abs -3) (abs 0) (abs 3))", "(3 0 3)");
return 0;
}
unsigned plithp_complete_test() {
//LithpEnvironment global_env; add_globals(global_env);
LithpEnvironment *global_env_obj = new LithpEnvironment();
add_globals(*global_env_obj);
Env_p global_env(global_env_obj);
auto start = std::chrono::steady_clock::now();
// the 29 unit tests for lis.py
TEST("((lambda (X) (+ X X)) 5)", "10");
TEST("(< 10 2)", "false");
TEST("(<= 10 2)", "false");
TEST("(quote \"f\\\"oo\")", "f\\\"oo");
TEST("(quote \"foo\")", "foo");
TEST("(quote (testing 1 (2.0) -3.14e159))", "(testing 1 (2.000000e+00) -3.140000e+159)");
TEST("(+ 2 2)", "4");
TEST("(+ 2.5 2)", "4.500000e+00");
TEST("(* 2.25 2)", "4.500000e+00"); // Bugfix, multiplication was losing floating point value
TEST("(+ (* 2 100) (* 1 10))", "210");
TEST("(> 6 5)", "true");
TEST("(< 6 5)", "false");
TEST("(if (> 6 5) (+ 1 1) (+ 2 2))", "2");
TEST("(if (< 6 5) (+ 1 1) (+ 2 2))", "4");
TEST("(define X 3)", "3");
TEST("X", "3");
TEST("(+ X X)", "6");
TEST("(begin (define X 1) (set! X (+ X 1)) (+ X 1))", "3");
TEST("(define twice (lambda (X) (* 2 X)))", "<Lambda>");
TEST("(twice 5)", "10");
TEST("(define compose (lambda (F G) (lambda (X) (F (G X)))))", "<Lambda>");
TEST("((compose list twice) 5)", "(10)");
TEST("(define repeat (lambda (F) (compose F F)))", "<Lambda>");
TEST("((repeat twice) 5)", "20");
TEST("((repeat (repeat twice)) 5)", "80");
// Factorial - head recursive
TEST("(define fact (lambda (N) (if (<= N 1) 1 (* N (fact (- N 1))))))", "<Lambda>");
TEST("(fact 3)", "6");
// TODO: Bignum support
TEST("(fact 12)", "479001600");
// Factorial - tail recursive
TEST("(begin (define fac (# (N) (fac2 N 1))) (define fac2 (# (N A) (if (<= N 0) A (fac2 (- N 1) (* N A))))))", "<Lambda>");
TEST("(fac 50.1)", "4.732679e+63"); // Bugfix, multiplication was losing floating point value
TEST("(define abs (lambda (N) ((if (> N 0) + -) 0 N)))", "<Lambda>");
TEST("(list (abs -3) (abs 0) (abs 3))", "(3 0 3)");
TEST("(define combine (lambda (F)"
"(lambda (X Y)"
"(if (null? X) (quote ())"
"(F (list (head X) (head Y))"
"((combine F) (tail X) (tail Y)))))))", "<Lambda>");
TEST("(define zip (combine cons))", "<Lambda>");
TEST("(zip (list 1 2 3 4) (list 5 6 7 8))", "((1 5) (2 6) (3 7) (4 8))");
TEST("(define riff-shuffle (lambda (Deck) (begin"
"(define take (lambda (N Seq) (if (<= N 0) (quote ()) (cons (head Seq) (take (- N 1) (tail Seq))))))"
"(define drop (lambda (N Seq) (if (<= N 0) Seq (drop (- N 1) (tail Seq)))))"
"(define mid (lambda (Seq) (/ (length Seq) 2)))"
"((combine (get! append)) (take (mid Deck) Deck) (drop (mid Deck) Deck)))))", "<Lambda>");
TEST("(riff-shuffle (list 1 2 3 4 5 6 7 8))", "(1 5 2 6 3 7 4 8)");
TEST("((repeat riff-shuffle) (list 1 2 3 4 5 6 7 8))", "(1 3 5 7 2 4 6 8)");
TEST("(riff-shuffle (riff-shuffle (riff-shuffle (list 1 2 3 4 5 6 7 8))))", "(1 2 3 4 5 6 7 8)");
auto end = std::chrono::steady_clock::now();
std::cout
<< "total tests " << g_test_count
<< ", total failures " << g_fault_count
<< ", run in " << std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count() << "ms\n";
return g_fault_count ? EXIT_FAILURE : EXIT_SUCCESS;
}
int RunTests() {
//plithp_test();
//plithp_abs_test();
//plithp_fac_test();
//plithp_fib_test();
plithp_complete_test();
return g_fault_count;
}
}
}