Add upperCamelCaseToSnakeCase()

1 files changed, 14 insertions, 0 deletions

diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/util/CasingTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/util/CasingTests.java
index 5893335..4d8c9c4 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/util/CasingTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/util/CasingTests.java
@@ -49,4 +49,18 @@ public class CasingTests {
 
         assertThat(result, equalTo(expectedUpperCase));
     }
+
+    @ParameterizedTest
+    @CsvSource({
+        "A,a",
+        "Abc,abc",
+        "AbcDef,abc_def",
+        "AbDeFg,ab_de_fg",
+        "A0,a_0",
+    })
+    public void upperCamelCaseToSnakeCase(String lowerCamelCase, String expectedUpperCase) {
+        var result = Casing.upperCamelCaseToSnakeCase(lowerCamelCase);
+
+        assertThat(result, equalTo(expectedUpperCase));
+    }
 }