diff --git a/surveys/code_coverage/program_2_phami_test.ts b/surveys/code_coverage/program_2_phami_test.ts
new file mode 100644
index 0000000..731a57e
--- /dev/null
+++ b/surveys/code_coverage/program_2_phami_test.ts
@@ -0,0 +1,10 @@
+import { assertEquals } from "jsr:@std/assert";
+import { stringToInt } from "./program_2.ts";
+
+Deno.test("must work", () => {
+    assertEquals(stringToInt("0"), 0);
+    assertEquals(stringToInt(""), NaN);
+    assertEquals(stringToInt("0b10"), 2)
+    assertEquals(stringToInt("0x10"), 16)
+    assertEquals(stringToInt("010"), 8)
+});
diff --git a/surveys/code_coverage/program_2_teis_test.ts b/surveys/code_coverage/program_2_teis_test.ts
new file mode 100644
index 0000000..307a7aa
--- /dev/null
+++ b/surveys/code_coverage/program_2_teis_test.ts
@@ -0,0 +1,18 @@
+import { assertEquals } from "jsr:@std/assert";
+import { stringToInt } from "./program_2.ts";
+
+Deno.test("must work", () => {
+    assertEquals(stringToInt("0"), 0);
+    assertEquals(stringToInt("10"), 10);
+    assertEquals(stringToInt("30"), 30);
+    assertEquals(stringToInt("0xf"), 15);
+    assertEquals(stringToInt("0x1f"), 31);
+    assertEquals(stringToInt("0b110"), 6);
+    assertEquals(stringToInt("06"), 6);
+    assertEquals(stringToInt("060"), 6*8);
+    assertEquals(stringToInt(""), NaN);
+    assertEquals(stringToInt("10f"), NaN);
+
+
+
+});