@Test
public void testReturnOneExitBlock() {
String input = "if(!x) return 1; y = x;";
CFG cfg = getCFGForCode(input);
assertTrue(isConnected(cfg, "y = x", "EXIT"));
assertTrue(cfg.outDegree(getNodeByCode(cfg, "y = x")) == 1);
}
@Test
public void testEmptyFor() {
String input = "for(;;){}";
CFG cfg = getCFGForCode(input);
CFGNode node = getNodeByCode(cfg, "INFINITE FOR");
assertTrue(node instanceof InfiniteForNode);
assertTrue(cfg.size() == 3);
}
@Test
public void testLinkBetweenBlocks() {
String input = "x = 10; y = 20;";
CFG cfg = getCFGForCode(input);
assertTrue(cfg.numberOfEdges() == 3);
}
@Test
public void testTwoInstructions() {
String input = "x = 10; y = 20;";
CFG cfg = getCFGForCode(input);
assertTrue(cfg.size() == 4);
}
@Test
public void testSwitchWithDefaultLabelNumberOfEdges() {
String input = "switch(foo){ case 1: case2: default: }";
CFG cfg = getCFGForCode(input);
assertTrue(cfg.numberOfEdges() == 7);
}
@Test
public void testSwitchWithBreakNumberOfEdges() {
String input = "switch(foo){ case 1: break; case2: break; case 3: }";
CFG cfg = getCFGForCode(input);
assertTrue(cfg.numberOfEdges() == 10);
}
@Test
public void testSwitchNumberOfEdges() {
String input = "switch(foo){ case 1: case2: case 3: }";
CFG cfg = getCFGForCode(input);
assertTrue(cfg.numberOfEdges() == 8);
}
@Test
public void testForNumberOfBlocks() {
String input = "for(i = 0; i < 10; i ++){ foo(); }";
CFG cfg = getCFGForCode(input);
assertTrue(cfg.size() == 6);
}
@Test
public void testDoNumberOfBlocks() {
String input = "do{ bar(); }while(foo);";
CFG cfg = getCFGForCode(input);
assertTrue(cfg.size() == 4);
}
@Test
public void testSingleCallBlockNumber() {
String input = "foo();";
CFG cfg = getCFGForCode(input);
assertTrue(cfg.size() == 3);
}