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Merged
epage merged 2 commits into from
Aug 14, 2025
Merged

feat(lexarg): Add --fail-fast flag #105

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3ad01b1
test: Show behavior without --fail-fast
epage Aug 14, 2025
b3f435a
feat(lexarg): Add --fail-fast flag
epage Aug 14, 2025
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4 changes: 4 additions & 0 deletions crates/libtest-lexarg/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,7 @@ Options:
--ignored Run only ignored tests
--include-ignored
Run ignored and not ignored tests
--fail-fast Don't start new tests after the first failure
--no-capture don't capture stdout/stderr of each task, allow
printing directly
--show-output Show captured stdout of successful tests
Expand Down Expand Up @@ -221,6 +222,9 @@ impl TestOptsBuilder {
Long("exact") => {
self.opts.filter_exact = true;
}
Long("fail-fast") => {
self.opts.fail_fast = true;
}
Long("color") => {
let color = parser
.next_flag_value()
Expand Down
140 changes: 140 additions & 0 deletions crates/libtest2-mimic/tests/testsuite/mixed_bag.rs
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Expand Up @@ -1012,6 +1012,146 @@ failures:
test result: FAILED. 2 passed; 1 failed; 5 ignored; 0 filtered out; finished in [..]s


"#]],
);
}

#[test]
fn fail_fast() {
check(
&["--fail-fast"],
101,
str![[r#"

running 8 tests
test bear ... ignored
test bunny ... ignored
test cat ... ok
test dog ... FAILED

failures:

---- dog ----
was not a good boy


failures:
dog

test result: FAILED. 1 passed; 1 failed; 2 ignored; 0 filtered out; finished in [..]s


"#]],
str![[r#"
...

"#]],
);
}

#[test]
#[cfg(feature = "json")]
fn fail_fast_json() {
check(
&["-Zunstable-options", "--format=json", "--fail-fast"],
101,
str![[r#"
[
{
"event": "discover_start"
},
{
"event": "discover_case",
"name": "bear"
},
{
"event": "discover_case",
"name": "bunny"
},
{
"event": "discover_case",
"name": "cat"
},
{
"event": "discover_case",
"name": "dog"
},
{
"event": "discover_case",
"name": "fly"
},
{
"event": "discover_case",
"name": "fox"
},
{
"event": "discover_case",
"name": "frog"
},
{
"event": "discover_case",
"name": "owl"
},
{
"elapsed_s": "[..]",
"event": "discover_complete"
},
{
"event": "suite_start"
},
{
"event": "case_start",
"name": "bear"
},
{
"elapsed_s": "[..]",
"event": "case_complete",
"message": "fails",
"name": "bear",
"status": "ignored"
},
{
"event": "case_start",
"name": "bunny"
},
{
"elapsed_s": "[..]",
"event": "case_complete",
"message": "fails",
"name": "bunny",
"status": "ignored"
},
{
"event": "case_start",
"name": "cat"
},
{
"elapsed_s": "[..]",
"event": "case_complete",
"name": "cat"
},
{
"event": "case_start",
"name": "dog"
},
{
"elapsed_s": "[..]",
"event": "case_complete",
"message": "was not a good boy",
"name": "dog",
"status": "failed"
},
{
"elapsed_s": "[..]",
"event": "suite_complete"
}
]
"#]]
.is_json()
.against_jsonlines(),
str![[r#"
...

"#]],
);
}
140 changes: 140 additions & 0 deletions crates/libtest2/tests/testsuite/mixed_bag.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1019,6 +1019,146 @@ failures:
test result: FAILED. 2 passed; 1 failed; 5 ignored; 0 filtered out; finished in [..]s


"#]],
);
}

#[test]
fn fail_fast() {
check(
&["--fail-fast"],
101,
str![[r#"

running 8 tests
test bear ... ignored
test bunny ... ignored
test cat ... ok
test dog ... FAILED

failures:

---- dog ----
was not a good boy


failures:
dog

test result: FAILED. 1 passed; 1 failed; 2 ignored; 0 filtered out; finished in [..]s


"#]],
str![[r#"
...

"#]],
);
}

#[test]
#[cfg(feature = "json")]
fn fail_fast_json() {
check(
&["-Zunstable-options", "--format=json", "--fail-fast"],
101,
str![[r#"
[
{
"event": "discover_start"
},
{
"event": "discover_case",
"name": "bear"
},
{
"event": "discover_case",
"name": "bunny"
},
{
"event": "discover_case",
"name": "cat"
},
{
"event": "discover_case",
"name": "dog"
},
{
"event": "discover_case",
"name": "fly"
},
{
"event": "discover_case",
"name": "fox"
},
{
"event": "discover_case",
"name": "frog"
},
{
"event": "discover_case",
"name": "owl"
},
{
"elapsed_s": "[..]",
"event": "discover_complete"
},
{
"event": "suite_start"
},
{
"event": "case_start",
"name": "bear"
},
{
"elapsed_s": "[..]",
"event": "case_complete",
"message": "fails",
"name": "bear",
"status": "ignored"
},
{
"event": "case_start",
"name": "bunny"
},
{
"elapsed_s": "[..]",
"event": "case_complete",
"message": "fails",
"name": "bunny",
"status": "ignored"
},
{
"event": "case_start",
"name": "cat"
},
{
"elapsed_s": "[..]",
"event": "case_complete",
"name": "cat"
},
{
"event": "case_start",
"name": "dog"
},
{
"elapsed_s": "[..]",
"event": "case_complete",
"message": "was not a good boy",
"name": "dog",
"status": "failed"
},
{
"elapsed_s": "[..]",
"event": "suite_complete"
}
]
"#]]
.is_json()
.against_jsonlines(),
str![[r#"
...

"#]],
);
}
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