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tests: augment heuristics tests
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Diff for: ‎src/config/mod.rs

+250
Original file line numberDiff line numberDiff line change
@@ -722,4 +722,254 @@ make_backup = false
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assert_eq!(config.imports_granularity(), ImportGranularity::Module);
723723
}
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}
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#[cfg(test)]
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mod use_small_heuristics {
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use super::*;
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#[test]
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fn test_default_sets_correct_widths() {
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let toml = r#"
733+
use_small_heuristics = "Default"
734+
max_width = 200
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"#;
736+
let config = Config::from_toml(toml, Path::new("")).unwrap();
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assert_eq!(config.array_width(), 120);
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assert_eq!(config.attr_fn_like_width(), 140);
739+
assert_eq!(config.chain_width(), 120);
740+
assert_eq!(config.fn_call_width(), 120);
741+
assert_eq!(config.single_line_if_else_max_width(), 100);
742+
assert_eq!(config.struct_lit_width(), 36);
743+
assert_eq!(config.struct_variant_width(), 70);
744+
}
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#[test]
747+
fn test_max_sets_correct_widths() {
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let toml = r#"
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use_small_heuristics = "Max"
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max_width = 120
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"#;
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let config = Config::from_toml(toml, Path::new("")).unwrap();
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assert_eq!(config.array_width(), 120);
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assert_eq!(config.attr_fn_like_width(), 120);
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assert_eq!(config.chain_width(), 120);
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assert_eq!(config.fn_call_width(), 120);
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assert_eq!(config.single_line_if_else_max_width(), 120);
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assert_eq!(config.struct_lit_width(), 120);
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assert_eq!(config.struct_variant_width(), 120);
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}
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#[test]
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fn test_off_sets_correct_widths() {
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let toml = r#"
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use_small_heuristics = "Off"
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max_width = 100
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"#;
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let config = Config::from_toml(toml, Path::new("")).unwrap();
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assert_eq!(config.array_width(), usize::max_value());
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assert_eq!(config.attr_fn_like_width(), usize::max_value());
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assert_eq!(config.chain_width(), usize::max_value());
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assert_eq!(config.fn_call_width(), usize::max_value());
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assert_eq!(config.single_line_if_else_max_width(), 0);
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assert_eq!(config.struct_lit_width(), 0);
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assert_eq!(config.struct_variant_width(), 0);
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}
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#[test]
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fn test_override_works_with_default() {
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let toml = r#"
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use_small_heuristics = "Default"
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array_width = 20
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attr_fn_like_width = 40
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chain_width = 20
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fn_call_width = 90
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single_line_if_else_max_width = 40
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struct_lit_width = 30
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struct_variant_width = 34
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"#;
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let config = Config::from_toml(toml, Path::new("")).unwrap();
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assert_eq!(config.array_width(), 20);
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assert_eq!(config.attr_fn_like_width(), 40);
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assert_eq!(config.chain_width(), 20);
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assert_eq!(config.fn_call_width(), 90);
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assert_eq!(config.single_line_if_else_max_width(), 40);
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assert_eq!(config.struct_lit_width(), 30);
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assert_eq!(config.struct_variant_width(), 34);
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}
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#[test]
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fn test_override_with_max() {
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let toml = r#"
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use_small_heuristics = "Max"
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array_width = 20
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attr_fn_like_width = 40
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chain_width = 20
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fn_call_width = 90
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single_line_if_else_max_width = 40
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struct_lit_width = 30
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struct_variant_width = 34
811+
"#;
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let config = Config::from_toml(toml, Path::new("")).unwrap();
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assert_eq!(config.array_width(), 20);
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assert_eq!(config.attr_fn_like_width(), 40);
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assert_eq!(config.chain_width(), 20);
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assert_eq!(config.fn_call_width(), 90);
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assert_eq!(config.single_line_if_else_max_width(), 40);
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assert_eq!(config.struct_lit_width(), 30);
819+
assert_eq!(config.struct_variant_width(), 34);
820+
}
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822+
#[test]
823+
fn test_override_with_off() {
824+
let toml = r#"
825+
use_small_heuristics = "Off"
826+
array_width = 20
827+
attr_fn_like_width = 40
828+
chain_width = 20
829+
fn_call_width = 90
830+
single_line_if_else_max_width = 40
831+
struct_lit_width = 30
832+
struct_variant_width = 34
833+
"#;
834+
let config = Config::from_toml(toml, Path::new("")).unwrap();
835+
assert_eq!(config.array_width(), 20);
836+
assert_eq!(config.attr_fn_like_width(), 40);
837+
assert_eq!(config.chain_width(), 20);
838+
assert_eq!(config.fn_call_width(), 90);
839+
assert_eq!(config.single_line_if_else_max_width(), 40);
840+
assert_eq!(config.struct_lit_width(), 30);
841+
assert_eq!(config.struct_variant_width(), 34);
842+
}
843+
844+
#[test]
845+
#[should_panic(expected = "`fn_call_width` cannot have a value that exceeds `max_width")]
846+
fn test_panics_when_fn_call_width_config_exceeds_max_width() {
847+
let toml = r#"
848+
max_width = 80
849+
fn_call_width = 90
850+
"#;
851+
Config::from_toml(toml, Path::new("")).unwrap();
852+
}
853+
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#[test]
855+
#[should_panic(
856+
expected = "`attr_fn_like_width` cannot have a value that exceeds `max_width"
857+
)]
858+
fn test_panics_when_attr_fn_like_width_config_exceeds_max_width() {
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let toml = r#"
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max_width = 80
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attr_fn_like_width = 90
862+
"#;
863+
Config::from_toml(toml, Path::new("")).unwrap();
864+
}
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#[test]
867+
#[should_panic(expected = "`struct_lit_width` cannot have a value that exceeds `max_width")]
868+
fn test_panics_when_struct_lit_config_exceeds_max_width() {
869+
let toml = r#"
870+
max_width = 80
871+
struct_lit_width = 90
872+
"#;
873+
Config::from_toml(toml, Path::new("")).unwrap();
874+
}
875+
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#[test]
877+
#[should_panic(
878+
expected = "`struct_variant_width` cannot have a value that exceeds `max_width"
879+
)]
880+
fn test_panics_when_struct_variant_width_config_exceeds_max_width() {
881+
let toml = r#"
882+
max_width = 80
883+
struct_variant_width = 90
884+
"#;
885+
Config::from_toml(toml, Path::new("")).unwrap();
886+
}
887+
888+
#[test]
889+
#[should_panic(expected = "`array_width` cannot have a value that exceeds `max_width")]
890+
fn test_panics_when_array_width_config_exceeds_max_width() {
891+
let toml = r#"
892+
max_width = 80
893+
array_width = 90
894+
"#;
895+
Config::from_toml(toml, Path::new("")).unwrap();
896+
}
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#[test]
899+
#[should_panic(expected = "`chain_width` cannot have a value that exceeds `max_width")]
900+
fn test_panics_when_chain_width_config_exceeds_max_width() {
901+
let toml = r#"
902+
max_width = 80
903+
chain_width = 90
904+
"#;
905+
Config::from_toml(toml, Path::new("")).unwrap();
906+
}
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#[test]
909+
#[should_panic(
910+
expected = "`single_line_if_else_max_width` cannot have a value that exceeds `max_width"
911+
)]
912+
fn test_panics_when_single_line_if_else_max_width_config_exceeds_max_width() {
913+
let toml = r#"
914+
max_width = 80
915+
single_line_if_else_max_width = 90
916+
"#;
917+
Config::from_toml(toml, Path::new("")).unwrap();
918+
}
919+
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#[test]
921+
#[should_panic(expected = "`fn_call_width` cannot have a value that exceeds `max_width")]
922+
fn test_panics_when_fn_call_width_override_exceeds_max_width() {
923+
let mut config = Config::default();
924+
config.override_value("fn_call_width", "101");
925+
}
926+
927+
#[test]
928+
#[should_panic(
929+
expected = "`attr_fn_like_width` cannot have a value that exceeds `max_width"
930+
)]
931+
fn test_panics_when_attr_fn_like_width_override_exceeds_max_width() {
932+
let mut config = Config::default();
933+
config.override_value("attr_fn_like_width", "101");
934+
}
935+
936+
#[test]
937+
#[should_panic(expected = "`struct_lit_width` cannot have a value that exceeds `max_width")]
938+
fn test_panics_when_struct_lit_override_exceeds_max_width() {
939+
let mut config = Config::default();
940+
config.override_value("struct_lit_width", "101");
941+
}
942+
943+
#[test]
944+
#[should_panic(
945+
expected = "`struct_variant_width` cannot have a value that exceeds `max_width"
946+
)]
947+
fn test_panics_when_struct_variant_width_override_exceeds_max_width() {
948+
let mut config = Config::default();
949+
config.override_value("struct_variant_width", "101");
950+
}
951+
952+
#[test]
953+
#[should_panic(expected = "`array_width` cannot have a value that exceeds `max_width")]
954+
fn test_panics_when_array_width_override_exceeds_max_width() {
955+
let mut config = Config::default();
956+
config.override_value("array_width", "101");
957+
}
958+
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#[test]
960+
#[should_panic(expected = "`chain_width` cannot have a value that exceeds `max_width")]
961+
fn test_panics_when_chain_width_override_exceeds_max_width() {
962+
let mut config = Config::default();
963+
config.override_value("chain_width", "101");
964+
}
965+
966+
#[test]
967+
#[should_panic(
968+
expected = "`single_line_if_else_max_width` cannot have a value that exceeds `max_width"
969+
)]
970+
fn test_panics_when_single_line_if_else_max_width_override_exceeds_max_width() {
971+
let mut config = Config::default();
972+
config.override_value("single_line_if_else_max_width", "101");
973+
}
974+
}
725975
}

Diff for: ‎tests/source/configs/use_small_heuristics/default.rs

+25
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
1+
// rustfmt-use_small_heuristics: Default
2+
3+
enum Lorem {
4+
Ipsum,
5+
Dolor(bool),
6+
Sit {
7+
amet: Consectetur,
8+
adipiscing: Elit,
9+
},
10+
}
11+
12+
fn main() {
13+
lorem("lorem", "ipsum", "dolor", "sit", "amet", "consectetur", "adipiscing");
14+
15+
let lorem = Lorem {
16+
ipsum: dolor,
17+
sit: amet,
18+
};
19+
20+
let lorem = if ipsum {
21+
dolor
22+
} else {
23+
sit
24+
};
25+
}

Diff for: ‎tests/source/configs/use_small_heuristics/off.rs

+25
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
1+
// rustfmt-use_small_heuristics: Off
2+
3+
enum Lorem {
4+
Ipsum,
5+
Dolor(bool),
6+
Sit {
7+
amet: Consectetur,
8+
adipiscing: Elit,
9+
},
10+
}
11+
12+
fn main() {
13+
lorem("lorem", "ipsum", "dolor", "sit", "amet", "consectetur", "adipiscing");
14+
15+
let lorem = Lorem {
16+
ipsum: dolor,
17+
sit: amet,
18+
};
19+
20+
let lorem = if ipsum {
21+
dolor
22+
} else {
23+
sit
24+
};
25+
}

Diff for: ‎tests/target/configs/use_small_heuristics/default.rs

+26
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
1+
// rustfmt-use_small_heuristics: Default
2+
3+
enum Lorem {
4+
Ipsum,
5+
Dolor(bool),
6+
Sit { amet: Consectetur, adipiscing: Elit },
7+
}
8+
9+
fn main() {
10+
lorem(
11+
"lorem",
12+
"ipsum",
13+
"dolor",
14+
"sit",
15+
"amet",
16+
"consectetur",
17+
"adipiscing",
18+
);
19+
20+
let lorem = Lorem {
21+
ipsum: dolor,
22+
sit: amet,
23+
};
24+
25+
let lorem = if ipsum { dolor } else { sit };
26+
}

Diff for: ‎tests/target/configs/use_small_heuristics/off.rs

+25
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
1+
// rustfmt-use_small_heuristics: Off
2+
3+
enum Lorem {
4+
Ipsum,
5+
Dolor(bool),
6+
Sit {
7+
amet: Consectetur,
8+
adipiscing: Elit,
9+
},
10+
}
11+
12+
fn main() {
13+
lorem("lorem", "ipsum", "dolor", "sit", "amet", "consectetur", "adipiscing");
14+
15+
let lorem = Lorem {
16+
ipsum: dolor,
17+
sit: amet,
18+
};
19+
20+
let lorem = if ipsum {
21+
dolor
22+
} else {
23+
sit
24+
};
25+
}

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