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+// Test that setting font features in math.equation has an effect.
+
+--- math-font-fallback ---
+// Test font fallback.
+$ よ and 🏳️‍🌈 $
+
+--- math-text-color ---
+// Test text properties.
+$text(#red, "time"^2) + sqrt("place")$
+
+--- math-font-features ---
+$ nothing $
+$ "hi ∅ hey" $
+$ sum_(i in NN) 1 + i $
+#show math.equation: set text(features: ("cv01",), fallback: false)
+$ nothing $
+$ "hi ∅ hey" $
+$ sum_(i in NN) 1 + i $
+
+--- math-optical-size-nested-scripts ---
+// Test transition from script to scriptscript.
+#[
+#set text(size:20pt)
+$  e^(e^(e^(e))) $
+]
+A large number: $e^(e^(e^(e)))$.
+
+--- math-optical-size-primes ---
+//  Test prime/double prime via scriptsize
+#let prime = [ \u{2032} ]
+#let dprime = [ \u{2033} ]
+#let tprime = [ \u{2034} ]
+$ y^dprime-2y^prime + y = 0 $
+$y^dprime-2y^prime + y = 0$
+$ y^tprime_3 + g^(prime 2) $
+
+--- math-optical-size-prime-large-operator ---
+// Test prime superscript on large symbol
+$ scripts(sum_(k in NN))^prime 1/k^2 $
+$sum_(k in NN)^prime 1/k^2$
+
+--- math-optical-size-frac-script-script ---
+// Test script-script in a fraction.
+$ 1/(x^A) $
+#[#set text(size:18pt); $1/(x^A)$] vs. #[#set text(size:14pt); $x^A$]