Add lowerCamelCaseToSnakeCase

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 fbdf429..561ec8a 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/util/CasingTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/util/CasingTests.java
@@ -20,4 +20,18 @@ 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 lowerCamelCaseToSnakeCase(String lowerCamelCase, String expectedUpperCase) {
+        var result = Casing.lowerCamelCaseToSnakeCase(lowerCamelCase);
+
+        assertThat(result, equalTo(expectedUpperCase));
+    }
 }