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fgdata/Nasal/std/Vector.nas.test
2014-10-18 01:13:37 +02:00

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# Unit tests helpers
# TODO generalize (eg. move comparison operators somewhere global)
var eq = func(lhs, rhs)
{
if( typeof(lhs) != typeof(rhs) )
return 0;
if( typeof(lhs) == "scalar" )
return lhs == rhs;
if( typeof(lhs) == "vector" )
{
if( size(lhs) != size(rhs) )
return 0;
forindex(var i; lhs)
{
if( !eq(lhs[i], rhs[i]) )
return 0;
}
return 1;
}
return lhs == rhs;
}
var print_fail = func(msg)
{
var c = caller(1); # [namespace, func, file, line]
die(c[2] ~ "(" ~ c[3] ~ "): error: " ~ msg);
}
var REQUIRE_EQUAL = func(lhs, rhs)
{
if( !eq(lhs, rhs) )
print_fail( "check failed [" ~ debug.string(lhs, 0)
~ " != "
~ debug.string(rhs, 0)
~ "]" );
}
# @param fn Function for testing
# @param ex (Part of) the expection thrown (with die())
var REQUIRE_THROW = func(fn, ex)
{
call(fn, nil, var err = []);
var err_msg = "exception " ~ ex ~ " expected";
if( size(err) )
{
if( err[0].starts_with(ex ~ ": ") )
return;
err_msg ~= " (got '" ~ err[0] ~ "')";
}
print_fail(err_msg);
}
var x = std.Vector.new();
REQUIRE_EQUAL(x.size(), 0);
x = std.Vector.new(["x", "y"]);
REQUIRE_EQUAL(x.vector, ["x", "y"]);
REQUIRE_EQUAL(x.size(), 2);
x.clear();
REQUIRE_EQUAL(x.vector, []);
REQUIRE_EQUAL(x.size(), 0);
# append():
x.append("a");
x.append("b");
x.append("c");
REQUIRE_EQUAL(x.vector, ["a", "b", "c"]);
REQUIRE_EQUAL(x.size(), 3);
# extend():
x.extend(["d", "e"]);
REQUIRE_EQUAL(x.vector, ["a", "b", "c", "d", "e"]);
REQUIRE_EQUAL(x.size(), 5);
# insert():
x.insert(2, "cc");
REQUIRE_EQUAL(x.vector, ["a", "b", "cc", "c", "d", "e"]);
REQUIRE_EQUAL(x.size(), 6);
# pop():
REQUIRE_EQUAL(x.pop(3), "c");
REQUIRE_EQUAL(x.vector, ["a", "b", "cc", "d", "e"]);
REQUIRE_EQUAL(x.size(), 5);
REQUIRE_EQUAL(x.pop(), "e");
REQUIRE_EQUAL(x.vector, ["a", "b", "cc", "d"]);
REQUIRE_EQUAL(x.size(), 4);
# clear():
x.clear();
REQUIRE_EQUAL(x.vector, []);
REQUIRE_EQUAL(x.size(), 0);
# extend():
x.extend(["a", "b", "c", "d"]);
REQUIRE_EQUAL(x.vector, ["a", "b", "c", "d"]);
REQUIRE_EQUAL(x.size(), 4);
# index():
REQUIRE_EQUAL(x.index("c"), 2);
# remove():
x.remove("c");
REQUIRE_EQUAL(x.vector, ["a", "b", "d"]);
REQUIRE_EQUAL(x.size(), 3);
# insert():
x.insert(0, "f");
REQUIRE_EQUAL(x.vector, ["f", "a", "b", "d"]);
REQUIRE_EQUAL(x.size(), 4);
x.remove("f");
REQUIRE_EQUAL(x.vector, ["a", "b", "d"]);
x.insert(1, "f");
REQUIRE_EQUAL(x.vector, ["a", "f", "b", "d"]);
REQUIRE_EQUAL(x.size(), 4);
x.remove("f");
REQUIRE_EQUAL(x.vector, ["a", "b", "d"]);
x.insert(2, "f");
REQUIRE_EQUAL(x.vector, ["a", "b", "f", "d"]);
x.remove("f");
REQUIRE_EQUAL(x.vector, ["a", "b", "d"]);
x.insert(3, "g");
REQUIRE_EQUAL(x.vector, ["a", "b", "d", "g"]);
x.remove("g");
x.insert(4, "g");
REQUIRE_EQUAL(x.vector, ["a", "b", "d", "g"]);
x.remove("g");
x.insert(-1, "h");
REQUIRE_EQUAL(x.vector, ["a", "b", "h", "d"]);
x.remove("h");
x.insert(-2, "h");
REQUIRE_EQUAL(x.vector, ["a", "h", "b", "d"]);
x.remove("h");
x.insert(-3, "h");
REQUIRE_EQUAL(x.vector, ["h", "a", "b", "d"]);
x.remove("h");
x.insert(-4, "h");
REQUIRE_EQUAL(x.vector, ["h", "a", "b", "d"]);
x.remove("h");
# pop():
REQUIRE_EQUAL(x.pop(-1), "d");
REQUIRE_EQUAL(x.vector, ["a", "b"]);
x.append("d");
REQUIRE_EQUAL(x.pop(-2), "b");
REQUIRE_EQUAL(x.vector, ["a", "d"]);
x.insert(1, "b");
REQUIRE_EQUAL(x.pop(-3), "a");
REQUIRE_EQUAL(x.vector, ["b", "d"]);
x.insert(0, "a");
REQUIRE_EQUAL(x.vector, ["a", "b", "d"]);
# Exceptions (should fail)
REQUIRE_THROW(func x.pop(-4), "IndexError");
REQUIRE_THROW(func x.pop(3), "IndexError");
REQUIRE_THROW(func x.remove("e"), "ValueError");