// Test OpenType features.

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// Test turning kerning off.
#font(kerning: true)[Tq] \
#font(kerning: false)[Tq]

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// Test smallcaps.
#font("Roboto")
#font(smallcaps: true)[Smallcaps]

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// Test alternates and stylistic sets.
#font("IBM Plex Serif")
a vs #font(alternates: true)[a] \
ß vs #font(stylistic-set: 5)[ß]

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// Test ligatures.
fi vs. #font(ligatures: false)[No fi] \

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// Test number style.
#font("Roboto")
#font(number-style: "old-style") 0123456789 \
#font(number-style: auto)[0123456789]

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// Test number width.
#font("Roboto")
#font(number-width: "proportional")[0123456789] \
#font(number-width: "tabular")[3456789123] \
#font(number-width: "tabular")[0123456789]

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// Test number position.
#font("IBM Plex Sans")
#font(number-position: "normal")[C2H4] \
#font(number-position: "subscript")[C2H4] \
#font(number-position: "superscript")[C2H4]

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// Test extra number stuff.
#font("IBM Plex Sans")
0 vs. #font(slashed-zero: true)[0] \
1/2 vs. #font(fractions: true)[1/2]

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// Test raw features.
#font("Roboto")
#font(features: ("smcp",))[Smcp] \
fi vs. #font(features: (liga: 0))[No fi]

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// Error: 22-24 must be between 1 and 20
#font(stylistic-set: 25)

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// Error: 21-32 expected "lining" or "old-style"
#font(number-style: "different")

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// Error: 17-22 expected array of strings or dictionary mapping tags to integers, found boolean
#font(features: false)