def test_eval(self):
"""Tests ${expression}$ calls"""
parser = PyMPL()
parser.input = """
s.t. con1: x + y <= ${abs((2**7)/5-135)}$ * z;
var x1, >= ${2+6}$, <= ${10*5}$;
"""
parser.parse(comment_cmds=False)
self.assertIn("s.t. con1: x + y <= 110 * z;", parser.output)
self.assertIn("var x1, >= 8, <= 50;", parser.output)
def test_stmt(self):
"""Tests $STMT{stmt} calls"""
parser = PyMPL()
parser.input = """
$STMT{"s.t. con1: x + y <= {0} * z;".format(abs((2**7)/5-135))};
$EXEC{stmt = "s.t. {0}: x >= 10;".format("test")};
$STMT{stmt};
"""
parser.parse(comment_cmds=False)
self.assertIn("s.t. con1: x + y <= 110 * z;", parser.output)
self.assertIn("s.t. test: x >= 10;", parser.output)
def test_var(self):
"""Tests $VAR[name]{typ, lb, ub} calls"""
parser = PyMPL()
parser.input = """
$VAR[x]{"integer", 0, 10};
$VAR[y]{"binary"};
$VAR[z]{ub=abs((2**7)/5-135)};
$VAR[^z]{"integer", 0, 10};
$EXEC{VAR['y']("binary")};
"""
parser.parse(comment_cmds=False)
self.assertIn("var x, integer, >= 0, <= 10;", parser.output)
self.assertIn("var y, binary;", parser.output)
self.assertIn("var z, <= 110;", parser.output)
self.assertNotIn("var ^z, integer, >= 0, <= 10;", parser.output)
self.assertIn("var y, binary;", parser.output)
def test_set(self):
"""Tests $SET[name]{values} calls"""
parser = PyMPL()
parser.input = """
$SET[A]{range(5)};
$SET[B]{zip(range(5),range(5))};
$SET[^C]{range(5)};
"""
parser.parse(comment_cmds=False)
self.assertIn("set A := {0,1,2,3,4};", parser.output)
self.assertIn(
"set B := {(0,0),(1,1),(2,2),(3,3),(4,4)};",
parser.output
)
self.assertNotIn("set C := {0,1,2,3,4};", parser.output)
self.assertNotIn("set ^C := {0,1,2,3,4};", parser.output)
def test_comments(self):
"""Tests valid comments"""
parser = PyMPL()
parser.input = """
/* ... $SET[A]{range(5)}; ... */
# $PARAM[VALUE]{10};
# ... $PARAM[VALUE2]{10}; ...
param a := "\\"/*";
$PARAM[Y]{10};
param b := "*/";
"""
parser.parse(comment_cmds=True)
self.assertNotIn("set A := {0,1,2,3,4};", parser.output)
self.assertNotIn("param VALUE := 10;", parser.output)
self.assertNotIn("param VALUE2 := 10;", parser.output)
self.assertIn("param Y := 10;", parser.output)
self.assertIn("# $PARAM[VALUE]{10};", parser.output)
self.assertIn("/*EVALUATED:$PARAM[Y]{10};*/", parser.output)
def test_param(self):
"""Tests $PARAM[name]{value} calls"""
parser = PyMPL()
parser.input = """
$PARAM[NAME]{"name"};
$PARAM[VALUE]{10};
$PARAM[D{I}]{{'a': 1, 'b': 2}};
$PARAM[L0]{[1,2,3], i0=0};
$PARAM[L1]{[1,2,3], i0=1};
$PARAM[^NAME2]{"something"};
"""
parser.parse(comment_cmds=False)
self.assertIn("param NAME := 'name';", parser.output)
self.assertIn("param VALUE := 10;", parser.output)
self.assertIn("param D := ['a']1['b']2;", parser.output)
self.assertIn("set I := {'a','b'};", parser.output)
self.assertIn("param L0 := [0]1[1]2[2]3;", parser.output)
self.assertIn("param L1 := [1]1[2]2[3]3;", parser.output)
self.assertNotIn("param NAME2 := 'something';", parser.output)
self.assertNotIn("param ^NAME2 := 'something';", parser.output)
def test_con(self):
"""Tests $CON[name]{lincomb, sign, rhs} calls"""
parser = PyMPL()
parser.input = """
$VAR[x1]{}; $VAR[x2]{}; $VAR[x3]{};
$CON[con1]{[("x1",5),("x2",15),("x3",10)],">=",20};
$CON[con2]{[("x1",5)],">=",[("x2",-15),("x3",-10),20]};
$CON[con3]{-20,">=",[("x1",-5),("x2",-15),("x3",-10)]};
$CON[con4]{-20,">=",[(-5, "x1"),("x2",-15),(-10, "x3")]};
$CON[con5]{[-20, "x1"],">=",[(-4, "x1"),("x2",-15),(-10, "x3")]};
$CON[con6]{"x1",">=",[(-4, "x1"),20,("x2",-15),(-10, "x3")]};
$CON[^xyz]{[("x1",5),("x2",15),("x3",10)],">=",20};
"""
parser.parse(comment_cmds=False)
self.assertIn("s.t. con1: +5*x1+15*x2+10*x3 >= 20;", parser.output)
self.assertIn("s.t. con2: +5*x1+15*x2+10*x3 >= 20;", parser.output)
self.assertIn("s.t. con3: +5*x1+15*x2+10*x3 >= 20;", parser.output)
self.assertIn("s.t. con4: +5*x1+15*x2+10*x3 >= 20;", parser.output)
self.assertIn("s.t. con5: +5*x1+15*x2+10*x3 >= 20;", parser.output)
self.assertIn("s.t. con6: +5*x1+15*x2+10*x3 >= 20;", parser.output)
self.assertNotIn("s.t. xyz: +5*x1+15*x2+10*x3 >= 20;", parser.output)
def test_exceptions(self):
"""Tests if exceptions are thrown correctly"""
parser = PyMPL()
parser.input = """$EXEC{print 1/0};"""
with self.assertRaises(ZeroDivisionError):
parser.parse(comment_cmds=False)
parser.input = """$SET[X]{0};"""
with self.assertRaises(TypeError):
parser.parse(comment_cmds=False)
parser.input = """$FLOW[Z]{100, [10, 10]};"""
with self.assertRaises(TypeError):
parser.parse(comment_cmds=False)
parser.input = """$FLOW[Z]{100, 10};"""
with self.assertRaises(TypeError):
parser.parse(comment_cmds=False)
parser.input = """$SET[X]{};"""
with self.assertRaises(TypeError):
parser.parse(comment_cmds=False)
parser.input = """$SET[X]{[1,2,3]};$SET[X]{[1,2]};"""
with self.assertRaises(AssertionError):
parser.parse(comment_cmds=False)
parser.input = """$SET[2X]{[1,2,3]};"""
with self.assertRaises(AssertionError):
parser.parse(comment_cmds=False)
def test_empty(self):
"""Tests empty files"""
parser = PyMPL()
parser.input = ""
parser.parse(comment_cmds=False)
self.assertEqual(parser.output, "")