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# frozen_string_literal: true
RSpec.describe Necromancer::NumericConverters, "#call" do
describe ":string -> :float" do
subject(:converter) {
described_class::StringToFloatConverter.new(:string, :float)
}
{
"" => 0.0,
"1" => 1.0,
"+1" => 1.0,
"1.2a" => 1.2,
"-1" => -1.0,
"1e1" => 10.0,
"1e-1" => 0.1,
"-1e1" => -10.0,
"-1e-1" => -0.1,
"1.0" => 1.0,
"1.0e+1" => 10.0,
"1.0e-1" => 0.1,
"-1.0e+1" => -10.0,
"-1.0e-1" => -0.1,
".1" => 0.1,
".1e+1" => 1.0,
".1e-1" => 0.01,
"-.1e+1" => -1.0,
"-.1e-1" => -0.01,
" 1. 10 " => 1.0,
" 1.0" => 1.0,
" .1 " => 0.1,
" -1.1 " => -1.1,
" -1 . 1" => -1.0
}.each do |actual, expected|
it "converts '#{actual}' to float value" do
expect(converter.(actual)).to eql(expected)
end
end
it "raises error for empty string in strict mode" do
expect {
converter.("", strict: true)
}.to raise_error(Necromancer::ConversionTypeError)
end
it "fails to convert '1.2a' in strict mode" do
expect {
converter.("1.2a", strict: true)
}.to raise_error(
Necromancer::ConversionTypeError,
"'1.2a' could not be converted from `string` into `float`"
)
end
end
describe ":string -> :integer" do
subject(:converter) {
described_class::StringToIntegerConverter.new(:string, :integer)
}
{
"" => 0,
"1" => 1,
"1ab" => 1,
"+1" => 1,
"-1" => -1,
"1e+1" => 1,
"+1e-1" => 1,
"-1e1" => -1,
"-1e-1" => -1,
"1.0" => 1,
"1.0e+1" => 1,
"1.0e-1" => 1,
"-1.0e+1" => -1,
"-1.0e-1" => -1,
".1" => 0,
".1e+1" => 0,
".1e-1" => 0,
"-.1e+1" => 0,
"-.1e-1" => 0,
" 1 00" => 1,
" 1 " => 1,
" -1 " => -1
}.each do |actual, expected|
it "converts '#{actual}' to float value" do
expect(converter.(actual)).to eql(expected)
end
end
it "raises error for empty string in strict mode" do
expect {
converter.("", strict: true)
}.to raise_error(Necromancer::ConversionTypeError)
end
it "raises error for float in strict mode" do
expect {
converter.("1.2", strict: true)
}.to raise_error(Necromancer::ConversionTypeError)
end
it "raises error for mixed string in strict mode" do
expect {
converter.("1abc", strict: true)
}.to raise_error(Necromancer::ConversionTypeError)
end
end
describe ":string -> :numeric" do
subject(:converter) {
described_class::StringToNumericConverter.new(:string, :numeric)
}
{
"" => 0,
"1" => 1,
"+1" => 1,
"-1" => -1,
"1e1" => 10.0,
"1e-1" => 0.1,
"-1e1" => -10.0,
"-1e-1" => -0.1,
"1.0" => 1.0,
"1.0e+1" => 10.0,
"1.0e-1" => 0.1,
"-1.0e+1" => -10.0,
"-1.0e-1" => -0.1,
".1" => 0.1,
".1e+1" => 1.0,
".1e-1" => 0.01,
"-.1e+1" => -1.0,
"-.1e-1" => -0.01,
" 1 00" => 1,
" 1 " => 1,
" -1 " => -1,
" 1. 10 " => 1.0,
" 1.0" => 1.0,
" .1 " => 0.1,
" -1.1 " => -1.1,
" -1 . 1" => -1.0
}.each do |actual, expected|
it "converts '#{actual}' to '#{expected}'" do
expect(converter.(actual)).to eql(expected)
end
end
end
end
|
