Tests/feaLib/data/ZeroValue_SinglePos_vertical.fea

# For SinglePos statements, zeroes should get compiled to ValueRecord format 0.
# https://github.com/fonttools/fonttools/issues/633

# Zero value in a vertical context.
feature vkrn {
    pos A 0;          # format A
    pos B <0 0 0 0>;  # format B
} vkrn;