diff --git a/packages/yew-macro/tests/html_macro/html-component-fail.stderr b/packages/yew-macro/tests/html_macro/html-component-fail.stderr
deleted file mode 100644
index 7c2e2f46400..00000000000
--- a/packages/yew-macro/tests/html_macro/html-component-fail.stderr
+++ /dev/null
@@ -1,371 +0,0 @@
-error: this opening tag has no corresponding closing tag
-  --> $DIR/html-component-fail.rs:78:13
-   |
-78 |     html! { <Child> };
-   |             ^^^^^^^
-
-error: unexpected end of input, expected identifier
-  --> $DIR/html-component-fail.rs:79:13
-   |
-79 |     html! { <Child:: /> };
-   |             ^^^^^^^^^^^
-
-error: expected expression following this `with`
-  --> $DIR/html-component-fail.rs:80:20
-   |
-80 |     html! { <Child with /> };
-   |                    ^^^^
-
-error: `props` doesn't have a value. (hint: set the value to `true` or `false` for boolean attributes)
-  --> $DIR/html-component-fail.rs:81:20
-   |
-81 |     html! { <Child props /> };
-   |                    ^^^^^
-
-error: this opening tag has no corresponding closing tag
-  --> $DIR/html-component-fail.rs:82:13
-   |
-82 |     html! { <Child with props > };
-   |             ^^^^^^^^^^^^^^^^^^^
-
-error: there are two `with <props>` definitions for this component (note: you can only define `with <props>` once)
-  --> $DIR/html-component-fail.rs:84:20
-   |
-84 |     html! { <Child with p1 with p2 /> };
-   |                    ^^^^^^^
-
-error: `ref` can only be set once
-  --> $DIR/html-component-fail.rs:85:38
-   |
-85 |     html! { <Child with props ref=() ref=() /> };
-   |                                      ^^^
-
-error: `ref` can only be set once
-  --> $DIR/html-component-fail.rs:86:38
-   |
-86 |     html! { <Child with props ref=() ref=() value=1 /> };
-   |                                      ^^^
-
-error: Using the `with props` syntax in combination with named props is not allowed (note: this does not apply to special props like `ref` and `key`)
-  --> $DIR/html-component-fail.rs:87:38
-   |
-87 |     html! { <Child with props ref=() value=1 ref=() /> };
-   |                                      ^^^^^
-
-error: Using the `with props` syntax in combination with named props is not allowed (note: this does not apply to special props like `ref` and `key`)
-  --> $DIR/html-component-fail.rs:88:31
-   |
-88 |     html! { <Child with props value=1 ref=()  ref=() /> };
-   |                               ^^^^^
-
-error: Using the `with props` syntax in combination with named props is not allowed (note: this does not apply to special props like `ref` and `key`)
-  --> $DIR/html-component-fail.rs:89:20
-   |
-89 |     html! { <Child value=1 with props  ref=()  ref=() /> };
-   |                    ^^^^^
-
-error: Using the `with props` syntax in combination with named props is not allowed (note: this does not apply to special props like `ref` and `key`)
-  --> $DIR/html-component-fail.rs:90:20
-   |
-90 |     html! { <Child value=1 ref=() with props ref=() /> };
-   |                    ^^^^^
-
-error: `ref` can only be set once
-  --> $DIR/html-component-fail.rs:91:27
-   |
-91 |     html! { <Child ref=() ref=() value=1  with props  /> };
-   |                           ^^^
-
-error: Using the `with props` syntax in combination with named props is not allowed (note: this does not apply to special props like `ref` and `key`)
-  --> $DIR/html-component-fail.rs:93:20
-   |
-93 |     html! { <Child value=1 with props /> };
-   |                    ^^^^^
-
-error: Using the `with props` syntax in combination with named props is not allowed (note: this does not apply to special props like `ref` and `key`)
-  --> $DIR/html-component-fail.rs:94:31
-   |
-94 |     html! { <Child with props value=1 /> };
-   |                               ^^^^^
-
-error: expected identifier, found keyword `type`
-  --> $DIR/html-component-fail.rs:95:20
-   |
-95 |     html! { <Child type=0 /> };
-   |                    ^^^^ expected identifier, found keyword
-   |
-help: you can escape reserved keywords to use them as identifiers
-   |
-95 |     html! { <Child r#type=0 /> };
-   |                    ^^^^^^
-
-error: expected a valid Rust identifier
-  --> $DIR/html-component-fail.rs:96:20
-   |
-96 |     html! { <Child invalid-prop-name=0 /> };
-   |                    ^^^^^^^^^^^^^^^^^
-
-error: expected an expression following this equals sign
-  --> $DIR/html-component-fail.rs:98:26
-   |
-98 |     html! { <Child string= /> };
-   |                          ^
-
-error: `int` can only be specified once but is given here again
-  --> $DIR/html-component-fail.rs:99:26
-   |
-99 |     html! { <Child int=1 int=2 int=3 /> };
-   |                          ^^^
-
-error: `int` can only be specified once but is given here again
-  --> $DIR/html-component-fail.rs:99:32
-   |
-99 |     html! { <Child int=1 int=2 int=3 /> };
-   |                                ^^^
-
-error: `ref` can only be specified once
-   --> $DIR/html-component-fail.rs:104:26
-    |
-104 |     html! { <Child int=1 ref=() ref=() /> };
-    |                          ^^^
-
-error: this closing tag has no corresponding opening tag
-   --> $DIR/html-component-fail.rs:107:13
-    |
-107 |     html! { </Child> };
-    |             ^^^^^^^^
-
-error: this opening tag has no corresponding closing tag
-   --> $DIR/html-component-fail.rs:108:13
-    |
-108 |     html! { <Child><Child></Child> };
-    |             ^^^^^^^
-
-error: only one root html element is allowed (hint: you can wrap multiple html elements in a fragment `<></>`)
-   --> $DIR/html-component-fail.rs:109:28
-    |
-109 |     html! { <Child></Child><Child></Child> };
-    |                            ^^^^^^^^^^^^^^^
-
-error: cannot specify the `children` prop when the component already has children
-   --> $DIR/html-component-fail.rs:128:25
-    |
-128 |         <ChildContainer children=children>
-    |                         ^^^^^^^^
-
-error: this closing tag has no corresponding opening tag
-   --> $DIR/html-component-fail.rs:133:30
-    |
-133 |     html! { <Generic<String>></Generic> };
-    |                              ^^^^^^^^^^
-
-error: this closing tag has no corresponding opening tag
-   --> $DIR/html-component-fail.rs:134:30
-    |
-134 |     html! { <Generic<String>></Generic<Vec<String>>> };
-    |                              ^^^^^^^^^^^^^^^^^^^^^^^
-
-error: only one root html element is allowed (hint: you can wrap multiple html elements in a fragment `<></>`)
-   --> $DIR/html-component-fail.rs:138:9
-    |
-138 |         <span>{ 2 }</span>
-    |         ^^^^^^^^^^^^^^^^^^
-
-error: optional attributes are only supported on elements. Components can use `Option<T>` properties to accomplish the same thing.
-   --> $DIR/html-component-fail.rs:141:28
-    |
-141 |     html! { <TestComponent value?="not_supported" /> };
-    |                            ^^^^^
-
-error[E0425]: cannot find value `blah` in this scope
-  --> $DIR/html-component-fail.rs:92:25
-   |
-92 |     html! { <Child with blah /> };
-   |                         ^^^^ not found in this scope
-
-error[E0609]: no field `r#type` on type `ChildProperties`
-  --> $DIR/html-component-fail.rs:95:20
-   |
-95 |     html! { <Child type=0 /> };
-   |                    ^^^^ unknown field
-   |
-   = note: available fields are: `string`, `int`
-
-error[E0599]: no method named `r#type` found for struct `ChildPropertiesBuilder<ChildPropertiesBuilderStep_missing_required_prop_int>` in the current scope
-  --> $DIR/html-component-fail.rs:95:20
-   |
-5  | #[derive(Clone, Properties, PartialEq)]
-   |                 ---------- method `r#type` not found for this
-...
-95 |     html! { <Child type=0 /> };
-   |                    ^^^^ method not found in `ChildPropertiesBuilder<ChildPropertiesBuilderStep_missing_required_prop_int>`
-
-error[E0609]: no field `unknown` on type `ChildProperties`
-  --> $DIR/html-component-fail.rs:97:20
-   |
-97 |     html! { <Child unknown="unknown" /> };
-   |                    ^^^^^^^ unknown field
-   |
-   = note: available fields are: `string`, `int`
-
-error[E0599]: no method named `unknown` found for struct `ChildPropertiesBuilder<ChildPropertiesBuilderStep_missing_required_prop_int>` in the current scope
-  --> $DIR/html-component-fail.rs:97:20
-   |
-5  | #[derive(Clone, Properties, PartialEq)]
-   |                 ---------- method `unknown` not found for this
-...
-97 |     html! { <Child unknown="unknown" /> };
-   |                    ^^^^^^^ method not found in `ChildPropertiesBuilder<ChildPropertiesBuilderStep_missing_required_prop_int>`
-
-error[E0277]: the trait bound `yew::virtual_dom::vcomp::VComp: yew::virtual_dom::Transformer<(), std::string::String>` is not satisfied
-   --> $DIR/html-component-fail.rs:100:33
-    |
-100 |     html! { <Child int=1 string={} /> };
-    |                                 ^^ the trait `yew::virtual_dom::Transformer<(), std::string::String>` is not implemented for `yew::virtual_dom::vcomp::VComp`
-    |
-    = help: the following implementations were found:
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a T, T>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a T, std::option::Option<T>>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a str, std::option::Option<std::string::String>>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a str, std::string::String>>
-            and 3 others
-    = note: required by `yew::virtual_dom::Transformer::transform`
-
-error[E0277]: the trait bound `yew::virtual_dom::vcomp::VComp: yew::virtual_dom::Transformer<{integer}, std::string::String>` is not satisfied
-   --> $DIR/html-component-fail.rs:101:33
-    |
-101 |     html! { <Child int=1 string=3 /> };
-    |                                 ^ the trait `yew::virtual_dom::Transformer<{integer}, std::string::String>` is not implemented for `yew::virtual_dom::vcomp::VComp`
-    |
-    = help: the following implementations were found:
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a T, T>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a T, std::option::Option<T>>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a str, std::option::Option<std::string::String>>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a str, std::string::String>>
-            and 3 others
-    = note: required by `yew::virtual_dom::Transformer::transform`
-
-error[E0277]: the trait bound `yew::virtual_dom::vcomp::VComp: yew::virtual_dom::Transformer<{integer}, std::string::String>` is not satisfied
-   --> $DIR/html-component-fail.rs:102:33
-    |
-102 |     html! { <Child int=1 string={3} /> };
-    |                                 ^^^ the trait `yew::virtual_dom::Transformer<{integer}, std::string::String>` is not implemented for `yew::virtual_dom::vcomp::VComp`
-    |
-    = help: the following implementations were found:
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a T, T>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a T, std::option::Option<T>>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a str, std::option::Option<std::string::String>>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a str, std::string::String>>
-            and 3 others
-    = note: required by `yew::virtual_dom::Transformer::transform`
-
-error[E0308]: mismatched types
-   --> $DIR/html-component-fail.rs:103:30
-    |
-103 |     html! { <Child int=1 ref=() /> };
-    |                              ^^ expected struct `yew::html::NodeRef`, found `()`
-
-error[E0277]: the trait bound `yew::virtual_dom::vcomp::VComp: yew::virtual_dom::Transformer<u32, i32>` is not satisfied
-   --> $DIR/html-component-fail.rs:105:24
-    |
-105 |     html! { <Child int=0u32 /> };
-    |                        ^^^^ the trait `yew::virtual_dom::Transformer<u32, i32>` is not implemented for `yew::virtual_dom::vcomp::VComp`
-    |
-    = help: the following implementations were found:
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a T, T>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a T, std::option::Option<T>>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a str, std::option::Option<std::string::String>>>
-              <yew::virtual_dom::vcomp::VComp as yew::virtual_dom::Transformer<&'a str, std::string::String>>
-            and 3 others
-    = note: required by `yew::virtual_dom::Transformer::transform`
-
-error[E0599]: no method named `string` found for struct `ChildPropertiesBuilder<ChildPropertiesBuilderStep_missing_required_prop_int>` in the current scope
-   --> $DIR/html-component-fail.rs:106:20
-    |
-5   | #[derive(Clone, Properties, PartialEq)]
-    |                 ---------- method `string` not found for this
-...
-106 |     html! { <Child string="abc" /> };
-    |                    ^^^^^^ method not found in `ChildPropertiesBuilder<ChildPropertiesBuilderStep_missing_required_prop_int>`
-    |
-    = help: items from traits can only be used if the trait is implemented and in scope
-    = note: the following trait defines an item `string`, perhaps you need to implement it:
-            candidate #1: `proc_macro::bridge::server::Literal`
-
-error[E0609]: no field `children` on type `ChildProperties`
-   --> $DIR/html-component-fail.rs:110:14
-    |
-110 |     html! { <Child>{ "Not allowed" }</Child> };
-    |              ^^^^^ unknown field
-    |
-    = note: available fields are: `string`, `int`
-
-error[E0599]: no method named `children` found for struct `ChildPropertiesBuilder<ChildPropertiesBuilderStep_missing_required_prop_int>` in the current scope
-   --> $DIR/html-component-fail.rs:110:14
-    |
-5   | #[derive(Clone, Properties, PartialEq)]
-    |                 ---------- method `children` not found for this
-...
-110 |     html! { <Child>{ "Not allowed" }</Child> };
-    |              ^^^^^ method not found in `ChildPropertiesBuilder<ChildPropertiesBuilderStep_missing_required_prop_int>`
-
-error[E0609]: no field `children` on type `ChildProperties`
-   --> $DIR/html-component-fail.rs:114:10
-    |
-114 |         <Child with ChildProperties { string: "hello".to_owned(), int: 5 }>
-    |          ^^^^^ unknown field
-    |
-    = note: available fields are: `string`, `int`
-
-error[E0599]: no method named `build` found for struct `ChildContainerPropertiesBuilder<ChildContainerPropertiesBuilderStep_missing_required_prop_children>` in the current scope
-   --> $DIR/html-component-fail.rs:119:14
-    |
-31  | #[derive(Clone, Properties)]
-    |                 ---------- method `build` not found for this
-...
-119 |     html! { <ChildContainer /> };
-    |              ^^^^^^^^^^^^^^ method not found in `ChildContainerPropertiesBuilder<ChildContainerPropertiesBuilderStep_missing_required_prop_children>`
-    |
-    = help: items from traits can only be used if the trait is implemented and in scope
-    = note: the following trait defines an item `build`, perhaps you need to implement it:
-            candidate #1: `proc_macro::bridge::server::TokenStreamBuilder`
-
-error[E0599]: no method named `build` found for struct `ChildContainerPropertiesBuilder<ChildContainerPropertiesBuilderStep_missing_required_prop_children>` in the current scope
-   --> $DIR/html-component-fail.rs:120:14
-    |
-31  | #[derive(Clone, Properties)]
-    |                 ---------- method `build` not found for this
-...
-120 |     html! { <ChildContainer></ChildContainer> };
-    |              ^^^^^^^^^^^^^^ method not found in `ChildContainerPropertiesBuilder<ChildContainerPropertiesBuilderStep_missing_required_prop_children>`
-    |
-    = help: items from traits can only be used if the trait is implemented and in scope
-    = note: the following trait defines an item `build`, perhaps you need to implement it:
-            candidate #1: `proc_macro::bridge::server::TokenStreamBuilder`
-
-error[E0277]: the trait bound `yew::virtual_dom::vcomp::VChild<Child>: std::convert::From<yew::virtual_dom::vtext::VText>` is not satisfied
-   --> $DIR/html-component-fail.rs:121:31
-    |
-121 |     html! { <ChildContainer>{ "Not allowed" }</ChildContainer> };
-    |                               ^^^^^^^^^^^^^ the trait `std::convert::From<yew::virtual_dom::vtext::VText>` is not implemented for `yew::virtual_dom::vcomp::VChild<Child>`
-    |
-    = note: required because of the requirements on the impl of `std::convert::Into<yew::virtual_dom::vcomp::VChild<Child>>` for `yew::virtual_dom::vtext::VText`
-    = note: required by `std::convert::Into::into`
-
-error[E0277]: the trait bound `yew::virtual_dom::vcomp::VChild<Child>: std::convert::From<yew::virtual_dom::vnode::VNode>` is not satisfied
-   --> $DIR/html-component-fail.rs:122:29
-    |
-122 |     html! { <ChildContainer><></></ChildContainer> };
-    |                             ^ the trait `std::convert::From<yew::virtual_dom::vnode::VNode>` is not implemented for `yew::virtual_dom::vcomp::VChild<Child>`
-    |
-    = note: required because of the requirements on the impl of `std::convert::Into<yew::virtual_dom::vcomp::VChild<Child>>` for `yew::virtual_dom::vnode::VNode`
-    = note: required by `std::convert::Into::into`
-
-error[E0277]: the trait bound `yew::virtual_dom::vcomp::VChild<Child>: std::convert::From<yew::virtual_dom::vnode::VNode>` is not satisfied
-   --> $DIR/html-component-fail.rs:123:30
-    |
-123 |     html! { <ChildContainer><other /></ChildContainer> };
-    |                              ^^^^^ the trait `std::convert::From<yew::virtual_dom::vnode::VNode>` is not implemented for `yew::virtual_dom::vcomp::VChild<Child>`
-    |
-    = note: required because of the requirements on the impl of `std::convert::Into<yew::virtual_dom::vcomp::VChild<Child>>` for `yew::virtual_dom::vnode::VNode`
-    = note: required by `std::convert::Into::into`