feat: kata/usd-equals->-cny (#804)

* docs: kata description

* chore: invalid directory character

* feat: kata/usd-equals->-cny

Signed-off-by: Capt. Cutlass <5120290+ParanoidUser@users.noreply.github.com>

Author: github-actions[bot]

kata/8-kyu/index.md

@@ -219,6 +219,7 @@
 - [Unexpected parsing](unexpected-parsing "54fdaa4a50f167b5c000005f")
 - [Unfinished Loop - Bug Fixing #1](unfinished-loop-bug-fixing-number-1 "55c28f7304e3eaebef0000da")
 - [Up and down, the string grows](up-and-down-the-string-grows "644b17b56ed5527b09057987")
+- [USD => CNY](usd-equals-cny "5977618080ef220766000022")
 - [Volume of a Cuboid](volume-of-a-cuboid "58261acb22be6e2ed800003a")
 - [Weird Java Array](weird-java-array "6607fc50c6494c000f1a08fc")
 - [Welcome to the City](welcome-to-the-city "5302d846be2a9189af0001e4")

kata/8-kyu/usd-equals-cny/README.md

@@ -0,0 +1,14 @@
+# [USD => CNY](https://www.codewars.com/kata/usd-equals->-cny "https://www.codewars.com/kata/5977618080ef220766000022")
+
+Create a function that converts US dollars (USD) to Chinese Yuan (CNY) . The input is the amount of USD as an integer, and the output should
+be a string that states the amount of Yuan followed by 'Chinese Yuan'
+
+### Examples (Input -> Output)
+
+```
+15 -> '101.25 Chinese Yuan'
+465 -> '3138.75 Chinese Yuan'
+```
+
+The conversion rate you should use is 6.75 CNY for every 1 USD. All numbers should be represented as a string with 2 decimal places. (e.g. "
+21.00" NOT "21.0" or "21")

kata/8-kyu/usd-equals-cny/main/Kata.java

@@ -0,0 +1,5 @@
+interface Kata {
+  static String usdcny(double usd) {
+    return String.format("%.2f Chinese Yuan", 6.75 * usd);
+  }
+}

kata/8-kyu/usd-equals-cny/test/USDtoCNYTest.java

@@ -0,0 +1,15 @@
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+
+class USDtoCNYTest {
+  @ParameterizedTest
+  @CsvSource(textBlock = """
+      15, 101.25 Chinese Yuan
+      465, 3138.75 Chinese Yuan
+      """)
+  void sample(int usd, String expected) {
+    assertEquals(expected, Kata.usdcny(usd));
+  }
+}