diff --git a/ios/Nativebrik/NativebrikTests/placeholder.swift b/ios/Nativebrik/NativebrikTests/placeholder.swift
index 4aa4ceb..dddbc3c 100644
--- a/ios/Nativebrik/NativebrikTests/placeholder.swift
+++ b/ios/Nativebrik/NativebrikTests/placeholder.swift
@@ -6,3 +6,81 @@
 //
 
 import Foundation
+
+import XCTest
+@testable import Nativebrik
+
+final class CompileTemplateTests: XCTestCase {
+    func testShouldCompileTemplate() throws {
+        let template = "Hello {{ value }}"
+        let result = compileTemplate(template: template) { key in
+            if key == "value" {
+                return "World"
+            } else {
+                return ""
+            }
+        }
+        XCTAssertEqual("Hello World", result)
+    }
+    
+    func testShouldCompileTemplateWithMultiplePlaceholders() throws {
+        let template = "{{ value1 }} {{ value2 }}"
+        let result = compileTemplate(template: template) { key in
+            if key == "value1" {
+                return "Hello"
+            } else if key == "value2" {
+                return "World"
+            } else {
+                return ""
+            }
+        }
+        XCTAssertEqual("Hello World", result)
+    }
+    
+    func testShouldCompileTemplateWithoutFmtButPipelined() throws {
+        let template = "Hello {{ value | }}"
+        let result = compileTemplate(template: template) { key in
+            return "World"
+        }
+        XCTAssertEqual("Hello World", result)
+    }
+
+    func testShouldCompileTemplateWithUnknownFmt() throws {
+        let template = "Hello {{ value | unknown }}"
+        let result = compileTemplate(template: template) { key in
+            if key == "value" {
+                return "World"
+            } else {
+                return ""
+            }
+        }
+        XCTAssertEqual("Hello World", result)
+    }
+    
+    func testShouldCompileTemplateWithUpperFmt() throws {
+        let template = "HELLO {{ value | upper }}"
+        let result = compileTemplate(template: template) { key in
+            return "world"
+        }
+        XCTAssertEqual("HELLO WORLD", result)
+    }
+    
+    func testShouldCompileTemplateWithLowerFmt() throws {
+        let template = "hello {{ value | lower }}"
+        let result = compileTemplate(template: template) { key in
+            return "WORLD"
+        }
+        XCTAssertEqual("hello world", result)
+    }
+    
+    func testShouldCompileTemplateWithJsonFmt() throws {
+        let template = "{{ value | json }}"
+        let result = compileTemplate(template: template) { key in
+            let json: [String: Any] = [
+                "Key": "Value",
+            ]
+            return json
+        }
+        XCTAssertEqual("{\"Key\":\"Value\"}", result)
+    }
+}