pgsExpression *pgsIdent::clone() const
{
return pnew pgsIdent(*this);
}
void pgsTestSuite::test_expression_record(void)
{
pgsVarMap vars;
pgsStmtList * SL1 = 0;
wxArrayString columns;
SL1 = pnew pgsStmtList(pgsTestClass::get_cout());
{
columns.Add(wxT("a"));
columns.Add(wxT("b"));
columns.Add(wxT("c"));
columns.Add(wxT("d"));
}
// r := { a, b, c, d }
{
pgsStmt * S = 0;
S = pnew pgsDeclareRecordStmt(wxT("r"), columns);
SL1->insert_back(S);
}
// r[2][a] := 5
{
pgsStmt * S = 0;
S = pnew pgsExpressionStmt(pnew pgsAssignToRecord(wxT("r"),
pnew pgsNumber(wxT("2")), pnew pgsString(wxT("a")),
pnew pgsNumber(wxT("5"))));
SL1->insert_back(S);
}
// r[1][b] := "abc"
{
pgsStmt * S = 0;
S = pnew pgsExpressionStmt(pnew pgsAssignToRecord(wxT("r"),
pnew pgsNumber(wxT("1")), pnew pgsString(wxT("b")),
pnew pgsString(wxT("abc"))));
SL1->insert_back(S);
}
// r[0][0] := 1
{
pgsStmt * S = 0;
S = pnew pgsExpressionStmt(pnew pgsAssignToRecord(wxT("r"),
pnew pgsNumber(wxT("0")), pnew pgsNumber(wxT("0")),
pnew pgsNumber(wxT("1"))));
SL1->insert_back(S);
}
// w := r
{
pgsStmt * S = 0;
S = pnew pgsExpressionStmt(pnew pgsAssign(wxT("w"),
pnew pgsIdent(wxT("r"))));
SL1->insert_back(S);
}
// p = (r != w)
{
pgsStmt * S = 0;
S = pnew pgsExpressionStmt(pnew pgsAssign(wxT("p"),
pnew pgsDifferent(pnew pgsIdent(wxT("r")),
pnew pgsIdent(wxT("w")))));
SL1->insert_back(S);
}
// r.remove_line(1)
{
pgsStmt * S = 0;
S = pnew pgsExpressionStmt(pnew pgsRemoveLine(wxT("r"),
pnew pgsNumber(wxT("1"))));
TS_ASSERT(pgsRemoveLine(wxT("r"), pnew pgsNumber(wxT("1")))
.value() == wxT("RMLINE(r[1])"));
SL1->insert_back(S);
}
// q = (r != w)
{
pgsStmt * S = 0;
S = pnew pgsExpressionStmt(pnew pgsAssign(wxT("q"),
pnew pgsDifferent(pnew pgsIdent(wxT("r")),
pnew pgsIdent(wxT("w")))));
SL1->insert_back(S);
}
// o = (r < w)
{
pgsStmt * S = 0;
S = pnew pgsExpressionStmt(pnew pgsAssign(wxT("o"),
pnew pgsLower(pnew pgsIdent(wxT("r")),
pnew pgsIdent(wxT("w")))));
SL1->insert_back(S);
}
SL1->eval(vars);
// Test symbol table at the end of the execution
TS_ASSERT(vars[wxT("p")]->value() == wxT("0"));
TS_ASSERT(vars[wxT("q")]->value() == wxT("1"));
TS_ASSERT(vars[wxT("o")]->value() == wxT("1"));
pdelete(SL1);
}
void pgsTestSuite::test_statement_stmt(void)
{
// Symbol table
pgsVarMap vars;
// Test Assignment Statement
{
pgsStmt * S1 = 0, * S2 = 0, * S3 = 0;
// x := 0
S1 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("x"),
pnew pgsNumber(wxT("0"), pgsInt)));
S1->eval(vars);
// y := 2
S2 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("y"),
pnew pgsNumber(wxT("2"), pgsInt)));
S2->eval(vars);
// Check that assignments went fine
TS_ASSERT(vars[wxT("x")]->value() == wxT("0"));
TS_ASSERT(vars[wxT("y")]->value() == wxT("2"));
// x := 1
S3 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("x"),
pnew pgsNumber(wxT("1"), pgsInt)));
S3->eval(vars);
TS_ASSERT(vars[wxT("x")]->value() == wxT("1"));
TS_ASSERT(vars[wxT("y")]->value() == wxT("2"));
pdelete(S1);
pdelete(S2);
pdelete(S3);
}
// Test If Statement (if 0 then z := 0 else z := 1 fi)
{
pgsStmt * S1 = 0;
pgsStmtList * SL1 = 0, * SL2 = 0;
// z := 0
SL1 = pnew pgsStmtList(pgsTestClass::get_cout());
SL1->insert_front(pnew pgsExpressionStmt(pnew pgsAssign(wxT("z"),
pnew pgsNumber(wxT("0"), pgsInt))));
// z := 1
SL2 = pnew pgsStmtList(pgsTestClass::get_cout());
SL2->insert_front(pnew pgsExpressionStmt(pnew pgsAssign(wxT("z"),
pnew pgsNumber(wxT("1"), pgsInt))));
// if 0 then z := 0 else z := 1 fi
S1 = pnew pgsIfStmt(pnew pgsNumber(wxT("0"), pgsInt), SL1, SL2);
S1->eval(vars);
TS_ASSERT(vars[wxT("x")]->value() == wxT("1"));
TS_ASSERT(vars[wxT("y")]->value() == wxT("2"));
TS_ASSERT(vars[wxT("z")]->value() == wxT("1"));
pdelete(S1);
}
// Test If Statement (if 1 then z := 0 else z := 1 fi)
{
pgsStmt * S1 = 0;
pgsStmtList * SL1 = 0, * SL2 = 0;
// z := 0
SL1 = pnew pgsStmtList(pgsTestClass::get_cout());
SL1->insert_front(pnew pgsExpressionStmt(pnew pgsAssign(wxT("z"),
pnew pgsNumber(wxT("0"), pgsInt))));
// z := 1
SL2 = pnew pgsStmtList(pgsTestClass::get_cout());
SL2->insert_front(pnew pgsExpressionStmt(pnew pgsAssign(wxT("z"),
pnew pgsNumber(wxT("1"), pgsInt))));
// if 1 then z := 0 else z := 1 fi
S1 = pnew pgsIfStmt(pnew pgsNumber(wxT("1"), pgsInt), SL1, SL2);
S1->eval(vars);
TS_ASSERT(vars[wxT("x")]->value() == wxT("1"));
TS_ASSERT(vars[wxT("y")]->value() == wxT("2"));
TS_ASSERT(vars[wxT("z")]->value() == wxT("0"));
pdelete(S1);
}
// Test While Statement (while i do s := s + i; i := i-1 done)
{
pgsStmt * S1 = 0, * S2 = 0, * S3 = 0;
pgsStmtList * SL1 = 0;
// i := 3
pgsExpressionStmt(pnew pgsAssign(wxT("i"), pnew pgsNumber(wxT("3"),
pgsInt))).eval(vars);
// s := 0
pgsExpressionStmt(pnew pgsAssign(wxT("s"), pnew pgsNumber(wxT("0"),
pgsInt))).eval(vars);
TS_ASSERT(vars[wxT("x")]->value() == wxT("1"));
TS_ASSERT(vars[wxT("y")]->value() == wxT("2"));
TS_ASSERT(vars[wxT("z")]->value() == wxT("0"));
TS_ASSERT(vars[wxT("i")]->value() == wxT("3"));
TS_ASSERT(vars[wxT("s")]->value() == wxT("0"));
TS_ASSERT(vars.size() == 5);
// i == 3 ?
TS_ASSERT(pgsIdent(wxT("i")).eval(vars)->value() == wxT("3"));
// s + i == 3 ?
TS_ASSERT(pgsPlus(pnew pgsIdent(wxT("s")),
pnew pgsIdent(wxT("i"))).eval(vars)->value() == wxT("3"));
// s := s + i
S1 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("s"),
pnew pgsPlus(pnew pgsIdent(wxT("s")),
pnew pgsIdent(wxT("i")))));
// i := i-1
S2 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("i"),
pnew pgsMinus(pnew pgsIdent(wxT("i")),
pnew pgsNumber(wxT("1"), pgsInt))));
SL1 = pnew pgsStmtList(pgsTestClass::get_cout());
SL1->insert_front(S2);
SL1->insert_front(S1);
// while i do s := s + i; i := i-1 done
S3 = pnew pgsWhileStmt(pnew pgsIdent(wxT("i")), SL1);
S3->eval(vars);
pdelete(S3);
TS_ASSERT(vars[wxT("x")]->value() == wxT("1"));
TS_ASSERT(vars[wxT("y")]->value() == wxT("2"));
TS_ASSERT(vars[wxT("z")]->value() == wxT("0"));
TS_ASSERT(vars[wxT("i")]->value() == wxT("0"));
TS_ASSERT(vars[wxT("s")]->value() == wxT("6"));
TS_ASSERT(vars.size() == 5);
}
// Test While Statement
// while i < 10 do
// i := i + i;
// if i > 5 then
// break;
// else
// continue;
// s := s + 1;
// fi
// done
{
pgsStmt * S1 = 0, * S2 = 0, * S3 = 0, * S4 = 0;
pgsStmtList * SL1 = 0, * SL2 = 0;
// i := 0
pgsExpressionStmt(pnew pgsAssign(wxT("i"), pnew pgsNumber(wxT("0"),
pgsInt))).eval(vars);
// s := 5
pgsExpressionStmt(pnew pgsAssign(wxT("s"), pnew pgsNumber(wxT("5"),
pgsInt))).eval(vars);
TS_ASSERT(vars[wxT("i")]->value() == wxT("0"));
TS_ASSERT(vars[wxT("s")]->value() == wxT("5"));
// i := i + 1
S1 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("i"),
pnew pgsPlus(pnew pgsIdent(wxT("i")),
pnew pgsNumber(wxT("1"), pgsInt))));
// s := s + 1
S2 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("s"),
pnew pgsPlus(pnew pgsIdent(wxT("s")),
pnew pgsNumber(wxT("1"), pgsInt))));
// s := s + 1; continue
SL2 = pnew pgsStmtList(pgsTestClass::get_cout());
SL2->insert_back(pnew pgsContinueStmt());
SL2->insert_back(S2);
// if i > 5 ... fi
S3 = pnew pgsIfStmt(pnew pgsGreater(pnew pgsIdent(wxT("i")),
pnew pgsNumber(wxT("5"))), pnew pgsBreakStmt(), SL2);
// while ... done
SL1 = pnew pgsStmtList(pgsTestClass::get_cout());
SL1->insert_back(S1);
SL1->insert_back(S3);
S4 = pnew pgsWhileStmt(pnew pgsLower(pnew pgsIdent(wxT("i")),
pnew pgsNumber(wxT("10"))), SL1);
S4->eval(vars);
pdelete(S4);
TS_ASSERT(vars[wxT("i")]->value() == wxT("6"));
TS_ASSERT(vars[wxT("s")]->value() == wxT("5"));
}
// Test Assign Statement with a generator
{
pgsExpression * N0 = 0, * N1 = 0, * N2 = 0;
pgsStmt * S1 = 0, * S2 = 0, * S3 = 0;
// m := -10
pgsExpressionStmt(pnew pgsAssign(wxT("m"),
pnew pgsNumber(wxT("-10")))).eval(vars);
// integer(m, 10, true, now)
N0 = pnew pgsGenInt(pnew pgsIdent(wxT("m")), pnew pgsNumber(wxT("10")),
pnew pgsNumber(wxT("1")), pnew pgsNumber(wxString()
<< wxDateTime::GetTimeNow()));
// string(1, 10, 2, now)
N1 = pnew pgsGenString(pnew pgsNumber(wxT("1")),
pnew pgsNumber(wxT("10")), pnew pgsNumber(wxT("2")),
pnew pgsNumber(wxString() << wxDateTime::GetTimeNow()));
// regex(a{2}[a-zA-Z]{10}c{3}, now)
N2 = pnew pgsGenRegex(pnew pgsString(wxT("a{2}[a-zA-Z]{10}c{3}")),
pnew pgsNumber(wxString() << wxDateTime::GetTimeNow()));
// x := integer(m, 10, true, now)
S1 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("x"), N0));
S1->eval(vars);
// y := string(1, 10, 2, now)
S2 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("y"), N1));
S2->eval(vars);
// z := regex(a{2}[a-zA-Z]{10}c{3}, now)
S3 = pnew pgsExpressionStmt(pnew pgsAssign(wxT("z"), N2));
S3->eval(vars);
wxString result1, result2, result3;
wxArrayString sav;
for (int i = 0; i < 21; i++)
{
// Check that x result is unique (we wanted to generate a sequence)
result1 = pgsIdent(wxT("x")).eval(vars)->value();
TS_ASSERT(sav.Index(result1) == wxNOT_FOUND);
sav.Add(result1);
// Check that y result is at least 3 characters (two words of 1
// character with a space in the middle) and less than 21
result2 = pgsIdent(wxT("y")).eval(vars)->value();
TS_ASSERT(result2.Length() >= 3 && result2.Length() <= 21);
// Check the regex-based generators
result3 = pgsIdent(wxT("z")).eval(vars)->value();
TS_ASSERT(result3.Length() == 15);
TS_ASSERT(result3.StartsWith(wxT("aa")) && result3.EndsWith(wxT("ccc")));
}
pdelete(S1); // Deletes N0
pdelete(S2); // Deletes N1
pdelete(S3); // Deletes N2
}
// Test an unknown identifier
{
pgsExpression * E1;
E1 = pnew pgsIdent(wxT("unknown"));
TS_ASSERT(E1->eval(vars)->value() == wxT(""));
pdelete(E1);
}
}