From 5f36bb1759e35bd3aef4b6ce226e091849f6b816 Mon Sep 17 00:00:00 2001 From: Dylan Noblesmith Date: Wed, 15 Jun 2011 23:36:34 +0000 Subject: [PATCH] unittests: add test for APInt::toString() Follow up to r133032. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133107 91177308-0d34-0410-b5e6-96231b3b80d8 --- unittests/ADT/APIntTest.cpp | 46 +++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/unittests/ADT/APIntTest.cpp b/unittests/ADT/APIntTest.cpp index dbd0cb7a245..1f78cd33bdf 100644 --- a/unittests/ADT/APIntTest.cpp +++ b/unittests/ADT/APIntTest.cpp @@ -320,6 +320,52 @@ TEST(APIntTest, StringBitsNeeded16) { EXPECT_EQ(9U, APInt::getBitsNeeded("-20", 16)); } +TEST(APIntTest, toString) { + SmallString<16> S; + bool isSigned; + + APInt(8, 0).toString(S, 2, true, true); + EXPECT_EQ(S.str().str(), "0b0"); + S.clear(); + APInt(8, 0).toString(S, 8, true, true); + EXPECT_EQ(S.str().str(), "00"); + S.clear(); + APInt(8, 0).toString(S, 10, true, true); + EXPECT_EQ(S.str().str(), "0"); + S.clear(); + APInt(8, 0).toString(S, 16, true, true); + EXPECT_EQ(S.str().str(), "0x0"); + S.clear(); + + isSigned = false; + APInt(8, 255, isSigned).toString(S, 2, isSigned, true); + EXPECT_EQ(S.str().str(), "0b11111111"); + S.clear(); + APInt(8, 255, isSigned).toString(S, 8, isSigned, true); + EXPECT_EQ(S.str().str(), "0377"); + S.clear(); + APInt(8, 255, isSigned).toString(S, 10, isSigned, true); + EXPECT_EQ(S.str().str(), "255"); + S.clear(); + APInt(8, 255, isSigned).toString(S, 16, isSigned, true); + EXPECT_EQ(S.str().str(), "0xFF"); + S.clear(); + + isSigned = true; + APInt(8, 255, isSigned).toString(S, 2, isSigned, true); + EXPECT_EQ(S.str().str(), "-0b1"); + S.clear(); + APInt(8, 255, isSigned).toString(S, 8, isSigned, true); + EXPECT_EQ(S.str().str(), "-01"); + S.clear(); + APInt(8, 255, isSigned).toString(S, 10, isSigned, true); + EXPECT_EQ(S.str().str(), "-1"); + S.clear(); + APInt(8, 255, isSigned).toString(S, 16, isSigned, true); + EXPECT_EQ(S.str().str(), "-0x1"); + S.clear(); +} + TEST(APIntTest, Log2) { EXPECT_EQ(APInt(15, 7).logBase2(), 2U); EXPECT_EQ(APInt(15, 7).ceilLogBase2(), 3U);