feat: add more test for gaugeapi and some.

Author: sysnote8main

src/test/kotlin/be4rjp/sclat/api/GaugeAPITest.kt

@@ -0,0 +1,23 @@
+package be4rjp.sclat.api
+
+import io.kotest.core.spec.style.StringSpec
+import io.kotest.matchers.shouldBe
+import org.bukkit.ChatColor
+
+class GaugeAPITest :
+    StringSpec({
+        "GaugeAPI should generate correct gauge string" {
+            val gaugeString = GaugeAPI.toGauge(5, 10, ChatColor.GREEN.toString(), ChatColor.RED.toString())
+            gaugeString shouldBe "${ChatColor.RESET}${ChatColor.GREEN}|||||${ChatColor.RED}|||||${ChatColor.RESET}"
+        }
+
+        "GaugeAPI should handle zero value correctly" {
+            val gaugeString = GaugeAPI.toGauge(0, 10, ChatColor.GREEN.toString(), ChatColor.RED.toString())
+            gaugeString shouldBe "${ChatColor.RESET}${ChatColor.GREEN}${ChatColor.RED}||||||||||${ChatColor.RESET}"
+        }
+
+        "GaugeAPI should handle max value correctly" {
+            val gaugeString = GaugeAPI.toGauge(10, 10, ChatColor.GREEN.toString(), ChatColor.RED.toString())
+            gaugeString shouldBe "${ChatColor.RESET}${ChatColor.GREEN}||||||||||${ChatColor.RED}${ChatColor.RESET}"
+        }
+    })

src/test/kotlin/be4rjp/sclat/util/LargeUnitTests.kt

@@ -61,4 +61,39 @@ class LargeUnitTests :
             (2 + 2) shouldBe 4
             (10 * 5) shouldBe 50
         }
+
+        // Additional tests for SclatUtil
+        "isNumber edge case: large integer" {
+            val largeInt = Int.MAX_VALUE.toString()
+            SclatUtil.isNumber(largeInt) shouldBe true
+        }
+
+        "isNumber edge case: negative large integer" {
+            val largeNegativeInt = Int.MIN_VALUE.toString()
+            SclatUtil.isNumber(largeNegativeInt) shouldBe true
+        }
+
+        "isNumber edge case: empty string" {
+            SclatUtil.isNumber("") shouldBe false
+        }
+
+        // Additional string manipulation tests
+        "string repeat with empty string" {
+            val s = "".repeat(5)
+            s shouldBe ""
+        }
+
+        "string repeat with special characters" {
+            val s = "@".repeat(3)
+            s shouldBe "@@@"
+        }
+
+        // Additional math sanity checks
+        "math division by non-zero" {
+            (10 / 2) shouldBe 5
+        }
+
+        "math modulo operation" {
+            (10 % 3) shouldBe 1
+        }
     })