Auto merge of #3888 - phansch:extract_mistyped_literal_suffix_tests_and_rustfix, r=flip1995

Add rustfix tests for mistyped_literal_suffix lint

This moves all `mistyped_literal_suffix` tests to their own file and
enables rustfix tests for them.

cc #3603, #2038

Based on #3887

tests/ui/literals.rs

@@ -37,27 +37,9 @@ fn main() {
     let ok16 = 0xFE_BAFE_ABAB_ABCD;
     let ok17 = 0x123_4567_8901_usize;
 
-    let fail9 = 0xabcdef;
-    let fail10 = 0xBAFEBAFE;
-    let fail11 = 0xabcdeff;
-    let fail12 = 0xabcabcabcabcabcabc;
     let fail13 = 0x1_23456_78901_usize;
 
-    let fail14 = 2_32;
-    let fail15 = 4_64;
-    let fail16 = 7_8;
-    let fail17 = 23_16;
-    let ok18 = 23_128;
     let fail19 = 12_3456_21;
-    let fail20 = 2__8;
-    let fail21 = 4___16;
     let fail22 = 3__4___23;
     let fail23 = 3__16___23;
-
-    let fail24 = 12.34_64;
-    let fail25 = 1E2_32;
-    let fail26 = 43E7_64;
-    let fail27 = 243E17_32;
-    let fail28 = 241251235E723_64;
-    let fail29 = 42279.911_32;
 }

tests/ui/literals.stderr

@@ -86,133 +86,33 @@ help: if you mean to use an octal constant, use `0o`
 LL |     let fail8 = 0o123;
    |                 ^^^^^
 
-error: long literal lacking separators
-  --> $DIR/literals.rs:40:17
-   |
-LL |     let fail9 = 0xabcdef;
-   |                 ^^^^^^^^ help: consider: `0x00ab_cdef`
-   |
-   = note: `-D clippy::unreadable-literal` implied by `-D warnings`
-
-error: long literal lacking separators
-  --> $DIR/literals.rs:41:18
-   |
-LL |     let fail10 = 0xBAFEBAFE;
-   |                  ^^^^^^^^^^ help: consider: `0xBAFE_BAFE`
-
-error: long literal lacking separators
-  --> $DIR/literals.rs:42:18
-   |
-LL |     let fail11 = 0xabcdeff;
-   |                  ^^^^^^^^^ help: consider: `0x0abc_deff`
-
-error: long literal lacking separators
-  --> $DIR/literals.rs:43:18
-   |
-LL |     let fail12 = 0xabcabcabcabcabcabc;
-   |                  ^^^^^^^^^^^^^^^^^^^^ help: consider: `0x00ab_cabc_abca_bcab_cabc`
-
 error: digit groups should be smaller
-  --> $DIR/literals.rs:44:18
+  --> $DIR/literals.rs:40:18
    |
 LL |     let fail13 = 0x1_23456_78901_usize;
    |                  ^^^^^^^^^^^^^^^^^^^^^ help: consider: `0x0123_4567_8901_usize`
    |
    = note: `-D clippy::large-digit-groups` implied by `-D warnings`
 
-error: mistyped literal suffix
-  --> $DIR/literals.rs:46:18
-   |
-LL |     let fail14 = 2_32;
-   |                  ^^^^ help: did you mean to write: `2_i32`
-   |
-   = note: #[deny(clippy::mistyped_literal_suffixes)] on by default
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:47:18
-   |
-LL |     let fail15 = 4_64;
-   |                  ^^^^ help: did you mean to write: `4_i64`
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:48:18
-   |
-LL |     let fail16 = 7_8;
-   |                  ^^^ help: did you mean to write: `7_i8`
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:49:18
-   |
-LL |     let fail17 = 23_16;
-   |                  ^^^^^ help: did you mean to write: `23_i16`
-
 error: digits grouped inconsistently by underscores
-  --> $DIR/literals.rs:51:18
+  --> $DIR/literals.rs:42:18
    |
 LL |     let fail19 = 12_3456_21;
    |                  ^^^^^^^^^^ help: consider: `12_345_621`
    |
    = note: `-D clippy::inconsistent-digit-grouping` implied by `-D warnings`
 
-error: mistyped literal suffix
-  --> $DIR/literals.rs:52:18
-   |
-LL |     let fail20 = 2__8;
-   |                  ^^^^ help: did you mean to write: `2_i8`
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:53:18
-   |
-LL |     let fail21 = 4___16;
-   |                  ^^^^^^ help: did you mean to write: `4_i16`
-
 error: digits grouped inconsistently by underscores
-  --> $DIR/literals.rs:54:18
+  --> $DIR/literals.rs:43:18
    |
 LL |     let fail22 = 3__4___23;
    |                  ^^^^^^^^^ help: consider: `3_423`
 
 error: digits grouped inconsistently by underscores
-  --> $DIR/literals.rs:55:18
+  --> $DIR/literals.rs:44:18
    |
 LL |     let fail23 = 3__16___23;
    |                  ^^^^^^^^^^ help: consider: `31_623`
 
-error: mistyped literal suffix
-  --> $DIR/literals.rs:57:18
-   |
-LL |     let fail24 = 12.34_64;
-   |                  ^^^^^^^^ help: did you mean to write: `12.34_f64`
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:58:18
-   |
-LL |     let fail25 = 1E2_32;
-   |                  ^^^^^^ help: did you mean to write: `1E2_f32`
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:59:18
-   |
-LL |     let fail26 = 43E7_64;
-   |                  ^^^^^^^ help: did you mean to write: `43E7_f64`
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:60:18
-   |
-LL |     let fail27 = 243E17_32;
-   |                  ^^^^^^^^^ help: did you mean to write: `243E17_f32`
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:61:18
-   |
-LL |     let fail28 = 241251235E723_64;
-   |                  ^^^^^^^^^^^^^^^^ help: did you mean to write: `241_251_235E723_f64`
-
-error: mistyped literal suffix
-  --> $DIR/literals.rs:62:18
-   |
-LL |     let fail29 = 42279.911_32;
-   |                  ^^^^^^^^^^^^ help: did you mean to write: `42_279.911_f32`
-
-error: aborting due to 31 previous errors
+error: aborting due to 15 previous errors
 

tests/ui/mistyped_literal_suffix.fixed

@@ -0,0 +1,22 @@
+// run-rustfix
+
+#![allow(dead_code, unused_variables, clippy::excessive_precision)]
+
+fn main() {
+    let fail14 = 2_i32;
+    let fail15 = 4_i64;
+    let fail16 = 7_i8; //
+    let fail17 = 23_i16; //
+    let ok18 = 23_128;
+
+    let fail20 = 2_i8; //
+    let fail21 = 4_i16; //
+
+    let fail24 = 12.34_f64;
+    let fail25 = 1E2_f32;
+    let fail26 = 43E7_f64;
+    let fail27 = 243E17_f32;
+    #[allow(overflowing_literals)]
+    let fail28 = 241_251_235E723_f64;
+    let fail29 = 42_279.911_f32;
+}

tests/ui/mistyped_literal_suffix.rs

@@ -0,0 +1,22 @@
+// run-rustfix
+
+#![allow(dead_code, unused_variables, clippy::excessive_precision)]
+
+fn main() {
+    let fail14 = 2_32;
+    let fail15 = 4_64;
+    let fail16 = 7_8; //
+    let fail17 = 23_16; //
+    let ok18 = 23_128;
+
+    let fail20 = 2__8; //
+    let fail21 = 4___16; //
+
+    let fail24 = 12.34_64;
+    let fail25 = 1E2_32;
+    let fail26 = 43E7_64;
+    let fail27 = 243E17_32;
+    #[allow(overflowing_literals)]
+    let fail28 = 241251235E723_64;
+    let fail29 = 42279.911_32;
+}

tests/ui/mistyped_literal_suffix.stderr

@@ -0,0 +1,76 @@
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:6:18
+   |
+LL |     let fail14 = 2_32;
+   |                  ^^^^ help: did you mean to write: `2_i32`
+   |
+   = note: #[deny(clippy::mistyped_literal_suffixes)] on by default
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:7:18
+   |
+LL |     let fail15 = 4_64;
+   |                  ^^^^ help: did you mean to write: `4_i64`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:8:18
+   |
+LL |     let fail16 = 7_8; //
+   |                  ^^^ help: did you mean to write: `7_i8`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:9:18
+   |
+LL |     let fail17 = 23_16; //
+   |                  ^^^^^ help: did you mean to write: `23_i16`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:12:18
+   |
+LL |     let fail20 = 2__8; //
+   |                  ^^^^ help: did you mean to write: `2_i8`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:13:18
+   |
+LL |     let fail21 = 4___16; //
+   |                  ^^^^^^ help: did you mean to write: `4_i16`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:15:18
+   |
+LL |     let fail24 = 12.34_64;
+   |                  ^^^^^^^^ help: did you mean to write: `12.34_f64`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:16:18
+   |
+LL |     let fail25 = 1E2_32;
+   |                  ^^^^^^ help: did you mean to write: `1E2_f32`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:17:18
+   |
+LL |     let fail26 = 43E7_64;
+   |                  ^^^^^^^ help: did you mean to write: `43E7_f64`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:18:18
+   |
+LL |     let fail27 = 243E17_32;
+   |                  ^^^^^^^^^ help: did you mean to write: `243E17_f32`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:20:18
+   |
+LL |     let fail28 = 241251235E723_64;
+   |                  ^^^^^^^^^^^^^^^^ help: did you mean to write: `241_251_235E723_f64`
+
+error: mistyped literal suffix
+  --> $DIR/mistyped_literal_suffix.rs:21:18
+   |
+LL |     let fail29 = 42279.911_32;
+   |                  ^^^^^^^^^^^^ help: did you mean to write: `42_279.911_f32`
+
+error: aborting due to 12 previous errors
+

tests/ui/unreadable_literal.fixed

@@ -17,4 +17,9 @@ fn main() {
     let bad = (0b11_0110_i64, 0x0123_4567_8901_usize, 123_456_f32, 1.234_567_f32);
     let good_sci = 1.1234e1;
     let bad_sci = 1.123_456e1;
+
+    let fail9 = 0x00ab_cdef;
+    let fail10: u32 = 0xBAFE_BAFE;
+    let fail11 = 0x0abc_deff;
+    let fail12: i128 = 0x00ab_cabc_abca_bcab_cabc;
 }

tests/ui/unreadable_literal.rs

@@ -17,4 +17,9 @@ fn main() {
     let bad = (0b110110_i64, 0x12345678901_usize, 123456_f32, 1.234567_f32);
     let good_sci = 1.1234e1;
     let bad_sci = 1.123456e1;
+
+    let fail9 = 0xabcdef;
+    let fail10: u32 = 0xBAFEBAFE;
+    let fail11 = 0xabcdeff;
+    let fail12: i128 = 0xabcabcabcabcabcabc;
 }

tests/ui/unreadable_literal.stderr

@@ -30,5 +30,29 @@ error: long literal lacking separators
 LL |     let bad_sci = 1.123456e1;
    |                   ^^^^^^^^^^ help: consider: `1.123_456e1`
 
-error: aborting due to 5 previous errors
+error: long literal lacking separators
+  --> $DIR/unreadable_literal.rs:21:17
+   |
+LL |     let fail9 = 0xabcdef;
+   |                 ^^^^^^^^ help: consider: `0x00ab_cdef`
+
+error: long literal lacking separators
+  --> $DIR/unreadable_literal.rs:22:23
+   |
+LL |     let fail10: u32 = 0xBAFEBAFE;
+   |                       ^^^^^^^^^^ help: consider: `0xBAFE_BAFE`
+
+error: long literal lacking separators
+  --> $DIR/unreadable_literal.rs:23:18
+   |
+LL |     let fail11 = 0xabcdeff;
+   |                  ^^^^^^^^^ help: consider: `0x0abc_deff`
+
+error: long literal lacking separators
+  --> $DIR/unreadable_literal.rs:24:24
+   |
+LL |     let fail12: i128 = 0xabcabcabcabcabcabc;
+   |                        ^^^^^^^^^^^^^^^^^^^^ help: consider: `0x00ab_cabc_abca_bcab_cabc`
+
+error: aborting due to 9 previous errors