Add get_node_text

packages/dom/Cargo.toml

@@ -14,7 +14,13 @@ regex.workspace = true
 thiserror.workspace = true
 wasm-bindgen.workspace = true
 web-sys = { workspace = true, features = [
+    "Document",
     "Element",
     "HtmlElement",
+    "HtmlInputElement",
     "NodeList",
+    "Window",
 ] }
+
+[dev-dependencies]
+wasm-bindgen-test.workspace = true

packages/dom/src/get_node_text.rs

@@ -0,0 +1,28 @@
+use wasm_bindgen::JsCast;
+use web_sys::{Element, HtmlInputElement, Node};
+
+use crate::util::node_list_to_vec;
+
+pub fn get_node_text(node: &Node) -> String {
+    if node
+        .dyn_ref::<Element>()
+        .map(|element| {
+            element
+                .matches("input[type=submit], input[type=button], input[type=reset]")
+                .is_ok_and(|value| value)
+        })
+        .unwrap_or(false)
+    {
+        node.unchecked_ref::<HtmlInputElement>().value()
+    } else {
+        node_list_to_vec::<Node>(node.child_nodes())
+            .into_iter()
+            .filter_map(|child| {
+                (child.node_type() == Node::TEXT_NODE)
+                    .then(|| child.text_content())
+                    .flatten()
+            })
+            .collect::<Vec<_>>()
+            .join("")
+    }
+}

packages/dom/src/lib.rs

@@ -1,10 +1,12 @@
 mod error;
+mod get_node_text;
 mod matches;
 pub mod queries;
 pub mod query_helpers;
 mod types;
 mod util;
 
+pub use get_node_text::*;
 pub use matches::get_default_normalizer;
 pub use queries::*;
 pub use query_helpers::*;

packages/dom/src/queries/alt_text.rs

@@ -12,8 +12,6 @@ pub fn query_all_by_alt_text(
     alt: &Matcher,
     options: MatcherOptions,
 ) -> Result<Vec<HtmlElement>, QueryError> {
-    // check_container_type(container);
-
     let valid_tag_regex = Regex::new(r"^(img|input|area|.+-.+)$").expect("Regex should be valid.");
 
     Ok(

packages/dom/tests/get_node_text.rs

@@ -0,0 +1,34 @@
+mod helpers;
+
+use helpers::test_utils::RenderReturn;
+use testing_library_dom::get_node_text;
+use wasm_bindgen_test::{wasm_bindgen_test, wasm_bindgen_test_configure};
+
+use self::helpers::test_utils::render;
+
+wasm_bindgen_test_configure!(run_in_browser);
+
+#[wasm_bindgen_test]
+fn it_prints_out_the_text_content_of_a_container() {
+    let RenderReturn { container, .. } = render("Hello <!--skipped-->World!", None);
+
+    assert_eq!("Hello World!", get_node_text(&container));
+}
+
+#[wasm_bindgen_test]
+fn it_prints_out_the_value_for_submit_and_button_inputs() {
+    let RenderReturn { container, .. } = render(
+        "<input type=\"submit\" value=\"save\"><input type=\"button\" value=\"reset\">",
+        None,
+    );
+
+    assert_eq!(
+        "save",
+        get_node_text(&container.first_child().expect("First child should exist."))
+    );
+
+    assert_eq!(
+        "reset",
+        get_node_text(&container.last_child().expect("Last child should exist."))
+    );
+}

packages/dom/tests/helpers/mod.rs

@@ -0,0 +1 @@
+pub mod test_utils;

packages/dom/tests/helpers/test_utils.rs

@@ -0,0 +1,44 @@
+use web_sys::{window, Document, Element};
+
+pub fn document() -> Document {
+    window()
+        .expect("Window should exist.")
+        .document()
+        .expect("Document should exist.")
+}
+
+pub struct RenderReturn {
+    pub container: Element,
+    pub rerender: Box<dyn Fn(&str) -> RenderReturn>,
+}
+
+pub fn render(html: &str, container: Option<Element>) -> RenderReturn {
+    let container = container.unwrap_or_else(|| {
+        document()
+            .create_element("div")
+            .expect("Element should be created.")
+    });
+
+    container.set_inner_html(html);
+
+    // TODO: container_queries
+
+    RenderReturn {
+        container: container.clone(),
+        rerender: Box::new(move |new_html| render(new_html, Some(container.clone()))),
+    }
+}
+
+pub fn render_into_document(html: &str) -> RenderReturn {
+    render(
+        html,
+        Some(document().body().expect("Body should exist.").into()),
+    )
+}
+
+pub fn cleanup() {
+    document()
+        .body()
+        .expect("Body should exist.")
+        .set_inner_html("");
+}