Test additional type stability

Author: MilesCranmer

test/unittests.jl

@@ -231,6 +231,8 @@ end
     @test ustrip(z) ≈ 60 * 60 * 24 * 365.25
 
     # Test type stability of extreme range of units
+    @test typeof(u"1") == Quantity{Float64,DEFAULT_DIM_TYPE}
+    @test typeof(u"1f0") == Quantity{Float64,DEFAULT_DIM_TYPE}
     @test typeof(u"s"^2) == Quantity{Float64,DEFAULT_DIM_TYPE}
     @test typeof(u"Ω") == Quantity{Float64,DEFAULT_DIM_TYPE}
     @test typeof(u"Gyr") == Quantity{Float64,DEFAULT_DIM_TYPE}