Merge pull request #2700 from ethereum/abiTests

Some more ABI tests.

2 files changed, 353 insertions, 0 deletions

diff --git a/test/libsolidity/ABIEncoderTests.cpp b/test/libsolidity/ABIEncoderTests.cpp
new file mode 100644
index 00000000..44c673c5
--- /dev/null
+++ b/test/libsolidity/ABIEncoderTests.cpp
@@ -0,0 +1,259 @@
+/*
+	This file is part of solidity.
+
+	solidity is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	solidity is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with solidity.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * Unit tests for Solidity's ABI encoder.
+ */
+
+#include <functional>
+#include <string>
+#include <tuple>
+#include <boost/test/unit_test.hpp>
+#include <libsolidity/interface/Exceptions.h>
+#include <test/libsolidity/SolidityExecutionFramework.h>
+
+using namespace std;
+using namespace std::placeholders;
+using namespace dev::test;
+
+namespace dev
+{
+namespace solidity
+{
+namespace test
+{
+
+#define REQUIRE_LOG_DATA(DATA) do { \
+	BOOST_REQUIRE_EQUAL(m_logs.size(), 1); \
+	BOOST_CHECK_EQUAL(m_logs[0].address, m_contractAddress); \
+	BOOST_CHECK_EQUAL(toHex(m_logs[0].data), toHex(DATA)); \
+} while (false)
+
+BOOST_FIXTURE_TEST_SUITE(ABIEncoderTest, SolidityExecutionFramework)
+
+BOOST_AUTO_TEST_CASE(value_types)
+{
+	char const* sourceCode = R"(
+		contract C {
+			event E(uint a, uint16 b, uint24 c, int24 d, bytes3 x, bool, C);
+			function f() {
+				bytes6 x = hex"1bababababa2";
+				bool b;
+				assembly { b := 7 }
+				C c;
+				assembly { c := sub(0, 5) }
+				E(10, uint16(uint256(-2)), uint24(0x12121212), int24(int256(-1)), bytes3(x), b, c);
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f()");
+	REQUIRE_LOG_DATA(encodeArgs(
+		10, u256(65534), u256(0x121212), u256(-1), string("\x1b\xab\xab"), true, u160(u256(-5))
+	));
+}
+
+BOOST_AUTO_TEST_CASE(string_literal)
+{
+	char const* sourceCode = R"(
+		contract C {
+			event E(string, bytes20, string);
+			function f() {
+				E("abcdef", "abcde", "abcdefabcdefgehabcabcasdfjklabcdefabcedefghabcabcasdfjklabcdefabcdefghabcabcasdfjklabcdeefabcdefghabcabcasdefjklabcdefabcdefghabcabcasdfjkl");
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f()");
+	REQUIRE_LOG_DATA(encodeArgs(
+		0x60, string("abcde"), 0xa0,
+		6, string("abcdef"),
+		0x8b, string("abcdefabcdefgehabcabcasdfjklabcdefabcedefghabcabcasdfjklabcdefabcdefghabcabcasdfjklabcdeefabcdefghabcabcasdefjklabcdefabcdefghabcabcasdfjkl")
+	));
+}
+
+
+BOOST_AUTO_TEST_CASE(enum_type_cleanup)
+{
+	char const* sourceCode = R"(
+		contract C {
+			enum E { A, B }
+			function f(uint x) returns (E en) {
+				assembly { en := x }
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	BOOST_CHECK(callContractFunction("f(uint256)", 0) == encodeArgs(0));
+	BOOST_CHECK(callContractFunction("f(uint256)", 1) == encodeArgs(1));
+	BOOST_CHECK(callContractFunction("f(uint256)", 2) == encodeArgs());
+}
+
+BOOST_AUTO_TEST_CASE(conversion)
+{
+	char const* sourceCode = R"(
+		contract C {
+			event E(bytes4, bytes4, uint16, uint8, int16, int8);
+			function f() {
+				bytes2 x; assembly { x := 0xf1f2f3f400000000000000000000000000000000000000000000000000000000 }
+				uint8 a;
+				uint16 b = 0x1ff;
+				int8 c;
+				int16 d;
+				assembly { a := sub(0, 1) c := 0x0101ff d := 0xff01 }
+				E(10, x, a, uint8(b), c, int8(d));
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f()");
+	REQUIRE_LOG_DATA(encodeArgs(
+		string(3, 0) + string("\x0a"), string("\xf1\xf2"),
+		0xff, 0xff, u256(-1), u256(1)
+	));
+}
+
+BOOST_AUTO_TEST_CASE(storage_byte_array)
+{
+	char const* sourceCode = R"(
+		contract C {
+			bytes short;
+			bytes long;
+			event E(bytes s, bytes l);
+			function f() {
+				short = "123456789012345678901234567890a";
+				long = "ffff123456789012345678901234567890afffffffff123456789012345678901234567890a";
+				E(short, long);
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f()");
+	REQUIRE_LOG_DATA(encodeArgs(
+		0x40, 0x80,
+		31, string("123456789012345678901234567890a"),
+		75, string("ffff123456789012345678901234567890afffffffff123456789012345678901234567890a")
+	));
+}
+
+BOOST_AUTO_TEST_CASE(storage_array)
+{
+	char const* sourceCode = R"(
+		contract C {
+			address[3] addr;
+			event E(address[3] a);
+			function f() {
+				assembly {
+					sstore(0, sub(0, 1))
+					sstore(1, sub(0, 2))
+					sstore(2, sub(0, 3))
+				}
+				E(addr);
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f()");
+	REQUIRE_LOG_DATA(encodeArgs(u160(-1), u160(-2), u160(-3)));
+}
+
+BOOST_AUTO_TEST_CASE(storage_array_dyn)
+{
+	char const* sourceCode = R"(
+		contract C {
+			address[] addr;
+			event E(address[] a);
+			function f() {
+				addr.push(1);
+				addr.push(2);
+				addr.push(3);
+				E(addr);
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f()");
+	REQUIRE_LOG_DATA(encodeArgs(0x20, 3, u160(1), u160(2), u160(3)));
+}
+
+BOOST_AUTO_TEST_CASE(storage_array_compact)
+{
+	char const* sourceCode = R"(
+		contract C {
+			int72[] x;
+			event E(int72[]);
+			function f() {
+				x.push(-1);
+				x.push(2);
+				x.push(-3);
+				x.push(4);
+				x.push(-5);
+				x.push(6);
+				x.push(-7);
+				x.push(8);
+				E(x);
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f()");
+	REQUIRE_LOG_DATA(encodeArgs(
+		0x20, 8, u256(-1), 2, u256(-3), 4, u256(-5), 6, u256(-7), 8
+	));
+}
+
+BOOST_AUTO_TEST_CASE(external_function)
+{
+	char const* sourceCode = R"(
+		contract C {
+			event E(function(uint) external returns (uint), function(uint) external returns (uint));
+			function(uint) external returns (uint) g;
+			function f(uint) returns (uint) {
+				g = this.f;
+				E(this.f, g);
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f(uint256)");
+	string functionIdF = asString(m_contractAddress.ref()) + asString(FixedHash<4>(dev::keccak256("f(uint256)")).ref());
+	REQUIRE_LOG_DATA(encodeArgs(functionIdF, functionIdF));
+}
+
+BOOST_AUTO_TEST_CASE(external_function_cleanup)
+{
+	char const* sourceCode = R"(
+		contract C {
+			event E(function(uint) external returns (uint), function(uint) external returns (uint));
+			// This test relies on the fact that g is stored in slot zero.
+			function(uint) external returns (uint) g;
+			function f(uint) returns (uint) {
+				function(uint) external returns (uint)[1] memory h;
+				assembly { sstore(0, sub(0, 1)) mstore(h, sub(0, 1)) }
+				E(h[0], g);
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("f(uint256)");
+	REQUIRE_LOG_DATA(encodeArgs(string(24, char(-1)), string(24, char(-1))));
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+}
+}
+} // end namespaces
diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp
index d0c5285c..166c4660 100644
--- a/test/libsolidity/SolidityEndToEndTest.cpp
+++ b/test/libsolidity/SolidityEndToEndTest.cpp
@@ -3157,6 +3157,31 @@ BOOST_AUTO_TEST_CASE(event_really_lots_of_data_from_storage)
 	BOOST_CHECK_EQUAL(m_logs[0].topics[0], dev::keccak256(string("Deposit(uint256,bytes,uint256)")));
 }
 
+BOOST_AUTO_TEST_CASE(event_really_really_lots_of_data_from_storage)
+{
+	char const* sourceCode = R"(
+		contract ClientReceipt {
+			bytes x;
+			event Deposit(uint fixeda, bytes dynx, uint fixedb);
+			function deposit() {
+				x.length = 31;
+				x[0] = "A";
+				x[1] = "B";
+				x[2] = "C";
+				x[30] = "Z";
+				Deposit(10, x, 15);
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	callContractFunction("deposit()");
+	BOOST_REQUIRE_EQUAL(m_logs.size(), 1);
+	BOOST_CHECK_EQUAL(m_logs[0].address, m_contractAddress);
+	BOOST_CHECK(m_logs[0].data == encodeArgs(10, 0x60, 15, 31, string("ABC") + string(27, 0) + "Z"));
+	BOOST_REQUIRE_EQUAL(m_logs[0].topics.size(), 1);
+	BOOST_CHECK_EQUAL(m_logs[0].topics[0], dev::keccak256(string("Deposit(uint256,bytes,uint256)")));
+}
+
 BOOST_AUTO_TEST_CASE(event_indexed_string)
 {
 	char const* sourceCode = R"(
@@ -4402,6 +4427,75 @@ BOOST_AUTO_TEST_CASE(array_copy_storage_storage_struct)
 	BOOST_CHECK(storageEmpty(m_contractAddress));
 }
 
+BOOST_AUTO_TEST_CASE(array_copy_storage_abi)
+{
+	// NOTE: This does not really test copying from storage to ABI directly,
+	// because it will always copy to memory first.
+	char const* sourceCode = R"(
+		contract c {
+			uint8[] x;
+			uint16[] y;
+			uint24[] z;
+			function test1() returns (uint8[]) {
+				for (uint i = 0; i < 101; ++i)
+					x.push(uint8(i));
+				return x;
+			}
+			function test2() returns (uint16[]) {
+				for (uint i = 0; i < 101; ++i)
+					y.push(uint16(i));
+				return y;
+			}
+			function test3() returns (uint24[]) {
+				for (uint i = 0; i < 101; ++i)
+					z.push(uint24(i));
+				return z;
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	bytes valueSequence;
+	for (size_t i = 0; i < 101; ++i)
+		valueSequence += toBigEndian(u256(i));
+	BOOST_CHECK(callContractFunction("test1()") == encodeArgs(0x20, 101) + valueSequence);
+	BOOST_CHECK(callContractFunction("test2()") == encodeArgs(0x20, 101) + valueSequence);
+	BOOST_CHECK(callContractFunction("test3()") == encodeArgs(0x20, 101) + valueSequence);
+}
+
+BOOST_AUTO_TEST_CASE(array_copy_storage_abi_signed)
+{
+	// NOTE: This does not really test copying from storage to ABI directly,
+	// because it will always copy to memory first.
+	char const* sourceCode = R"(
+		contract c {
+			int16[] x;
+			function test() returns (int16[]) {
+				x.push(int16(-1));
+				x.push(int16(-1));
+				x.push(int16(8));
+				x.push(int16(-16));
+				x.push(int16(-2));
+				x.push(int16(6));
+				x.push(int16(8));
+				x.push(int16(-1));
+				return x;
+			}
+		}
+	)";
+	compileAndRun(sourceCode);
+	bytes valueSequence;
+	BOOST_CHECK(callContractFunction("test()") == encodeArgs(0x20, 8,
+		u256(-1),
+		u256(-1),
+		u256(8),
+		u256(-16),
+		u256(-2),
+		u256(6),
+		u256(8),
+		u256(-1)
+	));
+}
+
 BOOST_AUTO_TEST_CASE(array_push)
 {
 	char const* sourceCode = R"(