feature: Add support for ETH currency in Money library

Author: douglas-franca

AUTHORS

@@ -30,6 +30,7 @@ Dave Kroondyk
 Diego Aguir Selzlein
 Doug Droper
 Douglas Miller
+Douglas Suptitz Franca
 Ed Saunders
 Edwin Vlieg
 Eloy

config/currency_non_iso.json

@@ -142,5 +142,20 @@
     "thousands_separator": ",",
     "iso_numeric": "",
     "smallest_denomination": 1
+  },
+  "eth": {
+    "priority": 100,
+    "iso_code": "ETH",
+    "name": "Ethereum",
+    "symbol": "Ξ",
+    "alternate_symbols": [],
+    "subunit": "Wei",
+    "subunit_to_unit": 100000000,
+    "symbol_first": true,
+    "html_entity": "Ξ",
+    "decimal_mark": ".",
+    "thousands_separator": ",",
+    "iso_numeric": "",
+    "smallest_denomination": 1
   }
 }

spec/currency_spec.rb

@@ -336,6 +336,7 @@ def to_s
 
     it "returns false if the currency is not iso" do
       expect(described_class.new(:btc).iso?).to be false
+      expect(described_class.new(:eth).iso?).to be false
     end
   end
 

spec/money/formatting_spec.rb

@@ -914,23 +914,27 @@
     end
 
     describe ":drop_trailing_zeros option" do
+      currencies = ["BTC", "BCH", "ETH"]
+
       specify "(drop_trailing_zeros: true) works as documented" do
-        expect(Money.new(89000, "BTC").format(drop_trailing_zeros: true, symbol: false)).to eq "0.00089"
-        expect(Money.new(89000, "BCH").format(drop_trailing_zeros: true, symbol: false)).to eq "0.00089"
-        expect(Money.new(100089000, "BTC").format(drop_trailing_zeros: true, symbol: false)).to eq "1.00089"
-        expect(Money.new(100089000, "BCH").format(drop_trailing_zeros: true, symbol: false)).to eq "1.00089"
-        expect(Money.new(100000000, "BTC").format(drop_trailing_zeros: true, symbol: false)).to eq "1"
-        expect(Money.new(100000000, "BCH").format(drop_trailing_zeros: true, symbol: false)).to eq "1"
+        amounts = { 89000 => "0.00089", 100089000 => "1.00089", 100000000 => "1" }
+
+        currencies.each do |currency|
+          amounts.each do |amount, expect|
+            expect(Money.new(amount, currency).format(drop_trailing_zeros: true, symbol: false)).to eq expect
+          end
+        end
         expect(Money.new(110, "AUD").format(drop_trailing_zeros: true, symbol: false)).to eq "1.1"
       end
 
       specify "(drop_trailing_zeros: false) works as documented" do
-        expect(Money.new(89000, "BTC").format(drop_trailing_zeros: false, symbol: false)).to eq "0.00089000"
-        expect(Money.new(89000, "BCH").format(drop_trailing_zeros: false, symbol: false)).to eq "0.00089000"
-        expect(Money.new(100089000, "BTC").format(drop_trailing_zeros: false, symbol: false)).to eq "1.00089000"
-        expect(Money.new(100089000, "BCH").format(drop_trailing_zeros: false, symbol: false)).to eq "1.00089000"
-        expect(Money.new(100000000, "BTC").format(drop_trailing_zeros: false, symbol: false)).to eq "1.00000000"
-        expect(Money.new(100000000, "BCH").format(drop_trailing_zeros: false, symbol: false)).to eq "1.00000000"
+        amounts = { 89000 => "0.00089000", 100089000 => "1.00089000", 100000000 => "1.00000000"}
+
+        currencies.each do |currency|
+          amounts.each do |amount, expect|
+            expect(Money.new(amount, currency).format(drop_trailing_zeros: false, symbol: false)).to eq expect
+          end
+        end
         expect(Money.new(110, "AUD").format(drop_trailing_zeros: false, symbol: false)).to eq "1.10"
       end
     end