<===> inclusive_forward/input.scss
a {
  @for $i from 1 through 5 {b: $i;}
}

<===> inclusive_forward/output.css
a {
  b: 1;
  b: 2;
  b: 3;
  b: 4;
  b: 5;
}

<===>
================================================================================
<===> inclusive_backward/input.scss
a {
  @for $i from 5 through 1 {b: $i;}
}

<===> inclusive_backward/output.css
a {
  b: 5;
  b: 4;
  b: 3;
  b: 2;
  b: 1;
}

<===>
================================================================================
<===> empty/input.scss
a {
  @for $i from 1 to 1 {b: $i;}
}

<===> empty/output.css

<===>
================================================================================
<===> exclusive_forward/input.scss
a {
  @for $i from 1 to 5 {b: $i;}
}

<===> exclusive_forward/output.css
a {
  b: 1;
  b: 2;
  b: 3;
  b: 4;
}

<===>
================================================================================
<===> exclusive_backward/input.scss
a {
  @for $i from 5 to 1 {b: $i;}
}

<===> exclusive_backward/output.css
a {
  b: 5;
  b: 4;
  b: 3;
  b: 2;
}

<===>
================================================================================
<===> negative_to_positive/input.scss
a {
  @for $i from -1 through 3 {b: $i;}
}

<===> negative_to_positive/output.css
a {
  b: -1;
  b: 0;
  b: 1;
  b: 2;
  b: 3;
}

<===>
================================================================================
<===> positive_to_negative/input.scss
a {
  @for $i from 2 through -1 {b: $i;}
}

<===> positive_to_negative/output.css
a {
  b: 2;
  b: 1;
  b: 0;
  b: -1;
}

<===>
================================================================================
<===> negative_to_negative/input.scss
a {
  @for $i from -5 through -1 {b: $i;}
}

<===> negative_to_negative/output.css
a {
  b: -5;
  b: -4;
  b: -3;
  b: -2;
  b: -1;
}

<===>
================================================================================
<===> to_scope/input.scss
// Overriding the variable inside the loop will not impact the end of the loop.
$limit: 4;

@for $i from 1 through $limit {
  $limit: 2;
  a {
    limit: $limit;
    i: $i;
  }
}

<===> to_scope/output.css
a {
  limit: 2;
  i: 1;
}

a {
  limit: 2;
  i: 2;
}

a {
  limit: 2;
  i: 3;
}

a {
  limit: 2;
  i: 4;
}

<===>
================================================================================
<===> unit/same/input.scss
a {
  @for $i from 1px through 5px {b: $i;}
}

<===> unit/same/output.css
a {
  b: 1px;
  b: 2px;
  b: 3px;
  b: 4px;
  b: 5px;
}

<===>
================================================================================
<===> unit/to_unitless/options.yml
---
:ignore_for:
  - libsass

<===> unit/to_unitless/input.scss
a {
  @for $i from 1px through 5 {b: $i;}
}

<===> unit/to_unitless/output.css
a {
  b: 1px;
  b: 2px;
  b: 3px;
  b: 4px;
  b: 5px;
}

<===>
================================================================================
<===> unit/from_unitless/options.yml
---
:ignore_for:
  - libsass

<===> unit/from_unitless/input.scss
a {
  @for $i from 1 through 5px {b: $i;}
}

<===> unit/from_unitless/output.css
a {
  b: 1;
  b: 2;
  b: 3;
  b: 4;
  b: 5;
}

<===>
================================================================================
<===> unit/compatible/options.yml
---
:ignore_for:
  - libsass

<===> unit/compatible/input.scss
a {
  @for $i from 5mm through 1cm {b: $i;}
}

<===> unit/compatible/output.css
a {
  b: 5mm;
  b: 6mm;
  b: 7mm;
  b: 8mm;
  b: 9mm;
  b: 10mm;
}

<===>
================================================================================
<===> error/from_type/input.scss
@for $i from "foo" through 4 {}
<===> error/from_type/error
Error: "foo" is not a number.
  ,
1 | @for $i from "foo" through 4 {}
  |              ^^^^^
  '
  input.scss 1:14  root stylesheet

<===> error/from_type/error-libsass
Error: "foo" is not an integer.
        on line 1 of input.scss
  Use --trace for backtrace.

<===>
================================================================================
<===> error/from_float/options.yml
---
:todo:
  - libsass

<===> error/from_float/input.scss
@for $i from 1.5 through 4 {}
<===> error/from_float/error
Error: 1.5 is not an int.
  ,
1 | @for $i from 1.5 through 4 {}
  |              ^^^
  '
  input.scss 1:14  root stylesheet

<===>
================================================================================
<===> error/to_type/input.scss
@for $i from 1 through "foo" {}
<===> error/to_type/error
Error: "foo" is not a number.
  ,
1 | @for $i from 1 through "foo" {}
  |                        ^^^^^
  '
  input.scss 1:24  root stylesheet

<===> error/to_type/error-libsass
Error: "foo" is not an integer.
        on line 1 of input.scss
  Use --trace for backtrace.

<===>
================================================================================
<===> error/to_float/options.yml
---
:todo:
  - libsass

<===> error/to_float/input.scss
@for $i from 1 through 1.5 {}
<===> error/to_float/error
Error: 1.5 is not an int.
  ,
1 | @for $i from 1 through 1.5 {}
  |                        ^^^
  '
  input.scss 1:24  root stylesheet

<===>
================================================================================
<===> error/unit_coersion_to_float/options.yml
---
:ignore_for:
  - libsass

<===> error/unit_coersion_to_float/input.scss
@for $i from 1cm through 5mm {}
<===> error/unit_coersion_to_float/error
Error: 0.5cm is not an int.
  ,
1 | @for $i from 1cm through 5mm {}
  |                          ^^^
  '
  input.scss 1:26  root stylesheet

<===>
================================================================================
<===> error/incompatible_units/input.scss
@for $i from 100% through 42px {}
<===> error/incompatible_units/error
Error: Expected 42px to have unit %.
  ,
1 | @for $i from 100% through 42px {}
  |                           ^^^^
  '
  input.scss 1:27  root stylesheet

<===> error/incompatible_units/error-libsass
Error: Incompatible units: '%' and 'px'.
        on line 1:14 of input.scss
>> @for $i from 100% through 42px {}
   -------------^