#81 coverage info missing prior catch block

[Ákos Maróy]

I'm running emma on a unit test, and it seems that emma reports no coverage in some function _prior_ to a catch block that the code enters

see the attached report HTML document.

it is clear, that all line before the catch block are actually executed in functions testRemoveAllEntities() and testRemoveEntity() - even though they are reported with red color by emma

[Ákos Maróy]

emma generated coverage report

[Per Lundholm]

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user_id=310871
Originator: NO

I also have run into this.

The pattern seems to be

W public void test_method() {
R (code block 1)
W try {
R (try block)
G } catch (Exception e) {
G (catch block)
W }
G }

W=White, G=Green, R=Red.

[Marcio Mazza]

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It seems that the problem has something to do with calling JUnit method
"void org.junit.Assert.fail(String message)"

A test to illustrate:

-----------------------------------------------------------------------
public class EmmaBugTest {

// WRONG
@Test
public void testCoverageBugWithFail() {
System.out.println("with fail: BEFORE TRY"); // RED
try {
System.out.println("with fail: TRY"); // RED
fail("failed"); // RED
} catch (AssertionError e) { // GREEN
System.out.println("with fail: " + e); // GREEN
}
}

// WRONG
@Test
public void testCoverageBugWithAssert() {
System.out.println("with assertTrue: BEFORE TRY"); // RED
try {
System.out.println("with assertTrue: TRY"); // RED
assertTrue(false); // RED
} catch (AssertionError e) { // GREEN
System.out.println("with assertTrue: " + e); // GREEN
}
}

// RIGHT
// with "-ea" VM argument
@Test
public void testCoverageBugAssertion() {
System.out.println("with raw assert: BEFORE TRY"); // GREEN
try {
System.out.println("with raw assert: TRY"); // GREEN
assert false : "ASSERTION FAILED"; // GREEN
} catch (AssertionError e) { // GREEN
System.out.println("with raw assert: " + e); // GREEN
}
}

// RIGHT
@Test
public void testCoverageBugAssertionError() {
System.out.println("with AssertionError: BEFORE TRY"); // GREEN
try {
System.out.println("with AssertionError: TRY"); // GREEN
throw new AssertionError("AssertionError"); // GREEN
} catch (AssertionError e) { // GREEN
System.out.println("with AssertionError: " + e); // GREEN
}
}
}

-----------------------------------------------------------------------
SYSTEM OUTPUT:

with fail: BEFORE TRY
with fail: TRY
with fail: java.lang.AssertionError: failed
with assertTrue: BEFORE TRY
with assertTrue: TRY
with assertTrue: java.lang.AssertionError:
with raw assert: BEFORE TRY
with raw assert: TRY
with raw assert: java.lang.AssertionError: ASSERTION FAILED
with AssertionError: BEFORE TRY
with AssertionError: TRY
with AssertionError: java.lang.AssertionError: AssertionError