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authorchriseth <chris@ethereum.org>2018-03-13 16:35:31 +0800
committerGitHub <noreply@github.com>2018-03-13 16:35:31 +0800
commitf2614be95f71a274db3c172661726dd007e90cf7 (patch)
treee324d1751243949f308d27c372670cf8e0e393f8 /test
parent886dc0512cba2c6bd6198eca88f1e84c55d392e5 (diff)
parent9b64dc501da5c743b948e4dca844a6cd67766be1 (diff)
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Merge pull request #3647 from leonardoalt/smt_bool
[SMTChecker] Support to Bool variables
Diffstat (limited to 'test')
-rw-r--r--test/libsolidity/SMTChecker.cpp138
1 files changed, 138 insertions, 0 deletions
diff --git a/test/libsolidity/SMTChecker.cpp b/test/libsolidity/SMTChecker.cpp
index 12b5f439..beb933a4 100644
--- a/test/libsolidity/SMTChecker.cpp
+++ b/test/libsolidity/SMTChecker.cpp
@@ -329,6 +329,144 @@ BOOST_AUTO_TEST_CASE(ways_to_merge_variables)
CHECK_WARNING(text, "Assertion violation happens here");
}
+BOOST_AUTO_TEST_CASE(bool_simple)
+{
+ string text = R"(
+ contract C {
+ function f(bool x) public pure {
+ assert(x);
+ }
+ }
+ )";
+ CHECK_WARNING(text, "Assertion violation happens here");
+ text = R"(
+ contract C {
+ function f(bool x, bool y) public pure {
+ assert(x == y);
+ }
+ }
+ )";
+ CHECK_WARNING(text, "Assertion violation happens here");
+ text = R"(
+ contract C {
+ function f(bool x, bool y) public pure {
+ bool z = x || y;
+ assert(!(x && y) || z);
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+ text = R"(
+ contract C {
+ function f(bool x) public pure {
+ if(x) {
+ assert(x);
+ } else {
+ assert(!x);
+ }
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+ text = R"(
+ contract C {
+ function f(bool x) public pure {
+ bool y = x;
+ assert(x == y);
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+ text = R"(
+ contract C {
+ function f(bool x) public pure {
+ require(x);
+ bool y;
+ y = false;
+ assert(x || y);
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+ text = R"(
+ contract C {
+ function f(bool x) public pure {
+ bool y;
+ assert(x <= y);
+ }
+ }
+ )";
+ CHECK_WARNING(text, "Assertion violation happens here");
+ text = R"(
+ contract C {
+ function f(bool x) public pure {
+ bool y;
+ assert(x >= y);
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+ text = R"(
+ contract C {
+ function f(bool x) public pure {
+ require(x);
+ bool y;
+ assert(x > y);
+ assert(y < x);
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+}
+
+BOOST_AUTO_TEST_CASE(bool_int_mixed)
+{
+ string text = R"(
+ contract C {
+ function f(bool x) public pure {
+ uint a;
+ if(x)
+ a = 1;
+ assert(!x || a > 0);
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+ text = R"(
+ contract C {
+ function f(bool x, uint a) public pure {
+ require(!x || a > 0);
+ uint b = a;
+ assert(!x || b > 0);
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+ text = R"(
+ contract C {
+ function f(bool x, bool y) public pure {
+ uint a;
+ if (x) {
+ if (y) {
+ a = 0;
+ } else {
+ a = 1;
+ }
+ } else {
+ if (y) {
+ a = 1;
+ } else {
+ a = 0;
+ }
+ }
+ bool xor_x_y = (x && !y) || (!x && y);
+ assert(!xor_x_y || a > 0);
+ }
+ }
+ )";
+ CHECK_SUCCESS_NO_WARNINGS(text);
+}
+
BOOST_AUTO_TEST_CASE(while_loop_simple)
{
// Check that variables are cleared