update 05.03.24

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/binary-search.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/binary-search.iml" filepath="$PROJECT_DIR$/.idea/binary-search.iml" />
+    </modules>
+  </component>
+</project>

go.mod

@@ -0,0 +1 @@
+module binary-search

main.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+)
+
+func binarySearch(nums []int, target int) (int, error) {
+	low := 0
+	high := len(nums) - 1
+	for low <= high {
+		mid := low + (high-low)/2
+		if nums[mid] > target {
+			high = mid - 1
+		} else if nums[mid] < target {
+			low = mid + 1
+		} else if nums[mid] == target {
+			return mid, nil
+		}
+	}
+	return -1, errors.New("binarySearch: your target is not found in the given array")
+}
+
+func main() {
+	fmt.Println("Go Fast!")
+}

main_test.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestBinarySearchWithWorkingTarget(t *testing.T) {
+	nums := []int{2, 3, 5, 7, 8}
+	target := 7
+	resu, err := binarySearch(nums, target)
+	if err != nil || resu != 3 {
+		t.Errorf("Test failed! expected: %v, but got: %v", 3, resu)
+	}
+}
+func TestBinarySearchWithNonWorkingTarget(t *testing.T) {
+	nums := []int{1, 4, 5, 8, 9}
+	target := 2
+	resu, err := binarySearch(nums, target)
+	if err == nil || resu != -1 {
+		t.Errorf("Test failed! expected: %v, but got: %v", "binarySearch: your target is not found in the given array", err)
+	}
+}