diff --git a/src/utilities/getFileName.test.js b/src/utilities/getFileName.test.js
index 8b4a030..84cc16e 100644
--- a/src/utilities/getFileName.test.js
+++ b/src/utilities/getFileName.test.js
@@ -1,8 +1,8 @@
 import { getFileName } from "./getFileName.js";
 
 test("identify name without extension", () => {
-    expect(getFileName("name.extension")).toContain("name");
+    expect(getFileName("name.extension")).toEqual("name");
     expect(getFileName("/sub/path/name.extension")).toEqual("name");
-    expect(getFileName("http://name.extension")).toContain("name");
-    expect(getFileName("http://sub/path/name.extension")).toContain("name");
+    expect(getFileName("http://name.extension")).toEqual("name");
+    expect(getFileName("http://sub/path/name.extension")).toEqual("name");
 });
diff --git a/src/utilities/toBoolean.js b/src/utilities/toBoolean.js
index 3f1236e..acd55eb 100644
--- a/src/utilities/toBoolean.js
+++ b/src/utilities/toBoolean.js
@@ -1,3 +1,3 @@
 export function toBoolean(value) {
-    return String(value) === "true";
+    return String(value).toLowerCase() === "true";
 }
diff --git a/src/utilities/toBoolean.test.js b/src/utilities/toBoolean.test.js
new file mode 100644
index 0000000..622d4a7
--- /dev/null
+++ b/src/utilities/toBoolean.test.js
@@ -0,0 +1,12 @@
+import { toBoolean } from "./toBoolean.js";
+
+test("to boolean conversion", () => {
+    expect(toBoolean(true)).toBeTruthy();
+    expect(toBoolean("true")).toBeTruthy();
+    expect(toBoolean("TrUe")).toBeTruthy();
+    expect(toBoolean(false)).toBeFalsy();
+    expect(toBoolean("rue")).toBeFalsy();
+    expect(toBoolean(1)).toBeFalsy();
+    expect(toBoolean(null)).toBeFalsy();
+    expect(toBoolean(undefined)).toBeFalsy();
+});