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Restructures, the better to explore errors.

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This commit is contained in:
Thomas Harte 2021-04-10 21:32:42 -04:00
parent 070e359d82
commit 47c5a243aa
1 changed files with 37 additions and 20 deletions
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57
OSBindings/Mac/Clock SignalTests/Z80ContentionTests.mm
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@ -122,6 +122,25 @@ struct ContentionCheck {
int length;
};
- (void)compareExpectedContentions:(const std::initializer_list<ContentionCheck> &)contentions found:(const std::vector<ContentionCheck> &)found label:(const char *)label {
XCTAssertEqual(contentions.size(), found.size(), "[%s] found %lu contentions but expected %zu", label, found.size(), contentions.size());
auto contention = contentions.begin();
auto found_contention = found.begin();
while(contention != contentions.end() && found_contention != found.end()) {
XCTAssertEqual(contention->address, found_contention->address, "[%s] mismatched address at step %zu; expected %04x but found %04x", label, contention - contentions.begin(), contention->address, found_contention->address);
XCTAssertEqual(contention->length, found_contention->length, "[%s] mismatched length at step %zu; expected %d but found %d", label, contention - contentions.begin(), contention->length, found_contention->length);
if(contention->address != found_contention->address || contention->length != found_contention->length) {
break;
}
++contention;
++found_contention;
}
}
/*!
Checks that the accumulated bus activity in @c z80 matches the expectations given in @c contentions if
processed by a Sinclair 48k or 128k ULA.
@ -129,11 +148,12 @@ struct ContentionCheck {
- (void)validate48Contention:(const std::initializer_list<ContentionCheck> &)contentions z80:(const CapturingZ80 &)z80 {
// 48[/128]k contention logic: triggered on address alone, _unless_
// MREQ is also active.
auto contention = contentions.begin();
const auto bus_records = z80.cycle_records();
std::vector<ContentionCheck> found_contentions;
int count = 0;
uint16_t address = bus_records.front().address;
for(size_t c = 0; c < bus_records.size(); c++) {
++count;
@ -141,21 +161,20 @@ struct ContentionCheck {
c && // i.e. not at front.
!bus_records[c].mreq // i.e. beginning of a new contention.
) {
XCTAssertNotEqual(contention, contentions.end());
found_contentions.emplace_back();
found_contentions.back().address = address;
found_contentions.back().length = count - 1;
XCTAssertEqual(contention->address, address);
XCTAssertEqual(contention->length, count - 1);
++contention;
count = 1;
address = bus_records[c].address;
}
}
XCTAssertEqual(contention->address, address);
XCTAssertEqual(contention->length, count);
++contention;
XCTAssertEqual(contention, contentions.end());
found_contentions.emplace_back();
found_contentions.back().address = address;
found_contentions.back().length = count;
[self compareExpectedContentions:contentions found:found_contentions label:"48kb"];
}
/*!
@ -164,8 +183,8 @@ struct ContentionCheck {
*/
- (void)validatePlus3Contention:(const std::initializer_list<ContentionCheck> &)contentions z80:(const CapturingZ80 &)z80 {
// +3 contention logic: triggered by the leading edge of MREQ, sans refresh.
auto contention = contentions.begin();
const auto bus_records = z80.bus_records();
std::vector<ContentionCheck> found_contentions;
int count = 0;
uint16_t address = bus_records.front().address;
@ -178,22 +197,20 @@ struct ContentionCheck {
c && // i.e. not at front.
is_leading_edge // i.e. beginning of a new contention.
) {
XCTAssertNotEqual(contention, contentions.end());
XCTAssertEqual(contention->address, address, "Address mismatch at half-cycle %zu", c);
XCTAssertEqual(contention->length, count - 1, "Length mismatch at half-cycle %zu", c);
++contention;
found_contentions.emplace_back();
found_contentions.back().address = address;
found_contentions.back().length = count - 1;
count = 1;
address = bus_records[c].address;
}
}
XCTAssertEqual(contention->address, address, "Address mismatch at end");
XCTAssertEqual(contention->length, count, "Length mismatch at end");
found_contentions.emplace_back();
found_contentions.back().address = address;
found_contentions.back().length = count;
++contention;
XCTAssertEqual(contention, contentions.end(), "Not all supplied contentions used");
[self compareExpectedContentions:contentions found:found_contentions label:"+3"];
}
// MARK: - Opcode tests.