TEST(IfTest, VersionAfterThenElseWithSingleAnyVar) {
bool ok;
Int i = any_int("I");
If branch(i < 5);
branch.track(i);
ok = branch.begin_then();
EXPECT_TRUE(ok);
i = i + any_int("A");
EXPECT_EQ(VZERO + 1, i.get_version());
ok = branch.begin_else();
EXPECT_TRUE(ok);
EXPECT_EQ(VZERO + 2, i.get_version());
i = i + any_int("A");
EXPECT_EQ(VZERO + 3, i.get_version());
branch.end();
// version increase due to join operation
EXPECT_EQ(VZERO + 4, i.get_version());
}
TEST(VersionTest, InitWithValue) {
Int a = 3;
Int b = a + 4;
EXPECT_EQ(0, a.get_version());
EXPECT_EQ(0, b.get_version());
}
TEST(VersionTest, SelfAssignmentAfterInit) {
Int a = 3;
Int b = any_int("B");
Char c = 'c';
EXPECT_EQ(0, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
a = a;
b = b;
c = c;
EXPECT_EQ(0, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
}
TEST(VersionTest, InitWithVarRequiringCast) {
Bool a = any_bool("A");
Char b = any_char("B");
Int c = b;
EXPECT_EQ(0, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
}
TEST(VersionTest, InitWithAny) {
Bool a = any_bool("A");
Char b = any_char("B");
Int c = any_int("C");
EXPECT_EQ(0, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
}
TEST(VersionTest, InitWithConcrete) {
Bool a = true;
Bool b = true;
Char c = 'a';
Int d = 3;
EXPECT_EQ(0, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
EXPECT_EQ(0, d.get_version());
}
TEST(LoopTest, VersionAfterUnwind1xWithSingleVarWithAny) {
bool ok;
Int i = any_int("I");
Loop loop(1u);
loop.track(i);
// 1x
ok = loop.unwind(i < 5);
EXPECT_TRUE(ok);
i = i + any_int("A");
EXPECT_EQ(VZERO + 1, i.get_version());
// 2x
ok = loop.unwind(any_bool("ANY"));
EXPECT_FALSE(ok);
// version increase due to join operation
EXPECT_EQ(VZERO + 2, i.get_version());
}
TEST(VersionTest, SelfAssignmentAfterOperations) {
Int a = 3;
Int b = any_int("B");
Char c = 'c';
EXPECT_EQ(0, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
// some operations
a = a + b + c;
b = a + b + c;
b = 5;
c = c + 'x';
c = 'y';
c = 'z' + c;
EXPECT_EQ(1, a.get_version());
EXPECT_EQ(2, b.get_version());
EXPECT_EQ(3, c.get_version());
a = a;
b = b;
c = c;
EXPECT_EQ(1, a.get_version());
EXPECT_EQ(2, b.get_version());
EXPECT_EQ(3, c.get_version());
}
TEST(IfTest, VersionAfterThenWithExtraVar) {
bool ok;
Int i = any_int("I");
Int j = any_int("J");
If branch(i < 5);
branch.track(i);
branch.track(j);
ok = branch.begin_then();
EXPECT_TRUE(ok);
i = i + 1;
EXPECT_EQ(VZERO + 1, i.get_version());
EXPECT_EQ(VZERO, j.get_version());
branch.end();
// version increase due to join operation
EXPECT_EQ(VZERO + 2, i.get_version());
EXPECT_EQ(VZERO, j.get_version());
}
TEST(IfTest, VersionAfterThenElseWithExtraVar) {
bool ok;
Int i = any_int("I");
Int j = any_int("J");
If branch(i < 5);
branch.track(i);
branch.track(j);
ok = branch.begin_then();
EXPECT_TRUE(ok);
i = i + 1;
EXPECT_EQ(VZERO + 1, i.get_version());
EXPECT_EQ(VZERO, j.get_version());
ok = branch.begin_else();
EXPECT_TRUE(ok);
EXPECT_EQ(VZERO + 2, i.get_version());
// j has not been modified inside the "then" branch.
EXPECT_EQ(VZERO, j.get_version());
i = i + 2;
EXPECT_EQ(VZERO + 3, i.get_version());
EXPECT_EQ(VZERO, j.get_version());
branch.end();
// version increase due to join operation
EXPECT_EQ(VZERO + 4, i.get_version());
// j has been neither modified inside the "then" nor "else" branch.
EXPECT_EQ(VZERO, j.get_version());
}
TEST(VersionTest, GetVersion) {
Int a = 3;
Int b = any_int("B");
Char c = 'c';
EXPECT_EQ(0, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
a = b + 2 + c;
EXPECT_EQ(1, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
a = 4 + b + c;
EXPECT_EQ(2, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(0, c.get_version());
c = a + b;
EXPECT_EQ(2, a.get_version());
EXPECT_EQ(0, b.get_version());
EXPECT_EQ(1, c.get_version());
b = 5;
EXPECT_EQ(2, a.get_version());
EXPECT_EQ(1, b.get_version());
EXPECT_EQ(1, c.get_version());
b = a;
EXPECT_EQ(2, a.get_version());
EXPECT_EQ(2, b.get_version());
EXPECT_EQ(1, c.get_version());
b = c;
EXPECT_EQ(2, a.get_version());
EXPECT_EQ(3, b.get_version());
EXPECT_EQ(1, c.get_version());
}
TEST(VersionTest, InitWithValueRequiringCast) {
Int a = make_value<char>('a');
EXPECT_EQ(0, a.get_version());
}
