diff --git a/compiler-core/src/format/tests.rs b/compiler-core/src/format/tests.rs
index 063ae63c779..e36c613ee19 100644
--- a/compiler-core/src/format/tests.rs
+++ b/compiler-core/src/format/tests.rs
@@ -6435,3 +6435,220 @@ fn big_grapheme_cluster() {
 "#
     );
 }
+
+#[test]
+fn echo() {
+    assert_format!(
+        "fn main() {
+  echo
+}
+"
+    );
+}
+
+#[test]
+fn echo_with_value() {
+    assert_format!(
+        r#"fn main() {
+  echo value
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_big_value_that_needs_to_be_split() {
+    assert_format!(
+        r#"fn main() {
+  echo [
+    this_is_a_long_list_and_requires_splitting,
+    wibble_wobble_woo,
+    multiple_lines,
+  ]
+}
+"#
+    );
+}
+
+#[test]
+fn echo_inside_a_pipeline() {
+    assert_format!(
+        r#"fn main() {
+  wibble
+  |> echo
+  |> wobble
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_value_inside_a_pipeline() {
+    assert_format!(
+        r#"fn main() {
+  wibble
+  |> echo value
+  |> wobble
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_long_value_inside_a_pipeline() {
+    assert_format_rewrite!(
+        r#"fn main() {
+  wibble
+  |> echo this_is_a_looooooooong_value(that_get_split_on_multiple_lines, i_wonder_how_this_will_look)
+  |> wobble
+}
+"#,
+        r#"fn main() {
+  wibble
+  |> echo this_is_a_looooooooong_value(
+    that_get_split_on_multiple_lines,
+    i_wonder_how_this_will_look,
+  )
+  |> wobble
+}
+"#,
+    );
+}
+
+#[test]
+fn echo_inside_a_single_line_pipeline() {
+    assert_format!(
+        r#"fn main() {
+  wibble |> echo |> wobble
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_value_inside_a_single_line_pipeline() {
+    assert_format!(
+        r#"fn main() {
+  wibble |> echo value |> wobble
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_long_value_inside_a_single_line_pipeline() {
+    assert_format_rewrite!(
+        r#"fn main() {
+  wibble |> echo this_is_a_looooooooong_value(that_get_split_on_multiple_lines, i_wonder_how_this_will_look) |> wobble
+}
+"#,
+        r#"fn main() {
+  wibble
+  |> echo this_is_a_looooooooong_value(
+    that_get_split_on_multiple_lines,
+    i_wonder_how_this_will_look,
+  )
+  |> wobble
+}
+"#
+    );
+}
+
+#[test]
+fn echo_as_last_item_of_pipeline() {
+    assert_format!(
+        r#"fn main() {
+  wibble |> wobble |> echo
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_value_as_last_item_of_pipeline() {
+    assert_format!(
+        r#"fn main() {
+  wibble |> wobble |> echo value
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_long_value_as_last_item_of_pipeline() {
+    assert_format_rewrite!(
+        r#"fn main() {
+  wibble |> wobble |> echo this_is_a_looooooooong_value(that_get_split_on_multiple_lines, i_wonder_how_this_will_look)
+}
+"#,
+        r#"fn main() {
+  wibble
+  |> wobble
+  |> echo this_is_a_looooooooong_value(
+    that_get_split_on_multiple_lines,
+    i_wonder_how_this_will_look,
+  )
+}
+"#
+    );
+}
+
+#[test]
+fn echo_as_last_item_of_multiline_pipeline() {
+    assert_format!(
+        r#"fn main() {
+  wibble
+  |> wobble
+  |> echo
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_value_as_last_item_of_multiline_pipeline() {
+    assert_format!(
+        r#"fn main() {
+  wibble
+  |> wobble
+  |> echo value
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_long_value_as_last_item_of_multiline_pipeline() {
+    assert_format_rewrite!(
+        r#"fn main() {
+  wibble
+  |> wobble
+  |> echo this_is_a_looooooooong_value(that_get_split_on_multiple_lines, i_wonder_how_this_will_look)
+}
+"#,
+        r#"fn main() {
+  wibble
+  |> wobble
+  |> echo this_is_a_looooooooong_value(
+    that_get_split_on_multiple_lines,
+    i_wonder_how_this_will_look,
+  )
+}
+"#
+    );
+}
+
+#[test]
+fn echo_with_related_expression_on_following_line() {
+    assert_format_rewrite!(
+        r#"fn main() {
+  panic as echo
+  "wibble"
+}
+"#,
+        r#"fn main() {
+  panic as echo "wibble"
+}
+"#
+    );
+}