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Unit tests for goto and goto/16 instructions embiggening.

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This commit is contained in:
Izzat Bahadirov 2013-03-25 17:59:21 -04:00
parent 6e524ece32
commit c995fb5086
1 changed files with 47 additions and 0 deletions
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47
dexlib2/src/test/java/org/jf/dexlib2/writer/JumboStringConversionTest.java
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@ -337,4 +337,51 @@ public class JumboStringConversionTest {
codeOffset += instr.getCodeUnits(); codeOffset += instr.getCodeUnits();
} }
} }
@Test
public void testGotoToGoto16() {
ArrayList<ImmutableInstruction> instructions = Lists.newArrayList();
ImmutableInstruction10t gotoInstr = new ImmutableInstruction10t(Opcode.GOTO, 127);
instructions.add(gotoInstr);
ImmutableStringReference reference = new ImmutableStringReference(mJumboStrings.get(0));
ImmutableInstruction21c stringInstr = new ImmutableInstruction21c(Opcode.CONST_STRING, 0, reference);
instructions.add(stringInstr);
for (int i=0;i<127;i++) {
ImmutableInstruction10x nopInstr = new ImmutableInstruction10x(Opcode.NOP);
instructions.add(nopInstr);
}
ImmutableMethodImplementation methodImplementation = new ImmutableMethodImplementation(1, instructions, null, null);
InstructionWriteUtil writeUtil = new InstructionWriteUtil(methodImplementation, mStringPool);
Instruction instr = writeUtil.getInstructions().iterator().next();
Assert.assertEquals("goto was not converted to goto/16 properly", instr.getOpcode(), Opcode.GOTO_16);
}
@Test
public void testGoto16ToGoto32() {
ArrayList<ImmutableInstruction> instructions = Lists.newArrayList();
ImmutableInstruction20t gotoInstr = new ImmutableInstruction20t(Opcode.GOTO_16, Short.MAX_VALUE);
instructions.add(gotoInstr);
ImmutableStringReference reference = new ImmutableStringReference(mJumboStrings.get(0));
ImmutableInstruction21c stringInstr = new ImmutableInstruction21c(Opcode.CONST_STRING, 0, reference);
instructions.add(stringInstr);
for (int i=0;i<Short.MAX_VALUE;i++) {
ImmutableInstruction10x nopInstr = new ImmutableInstruction10x(Opcode.NOP);
instructions.add(nopInstr);
}
ImmutableMethodImplementation methodImplementation = new ImmutableMethodImplementation(1, instructions, null, null);
InstructionWriteUtil writeUtil = new InstructionWriteUtil(methodImplementation, mStringPool);
Instruction instr = writeUtil.getInstructions().iterator().next();
Assert.assertEquals("goto/16 was not converted to goto/32 properly", instr.getOpcode(), Opcode.GOTO_32);
}
} }