//testowanie w GO
//tutaj testy
//uwaga jak w wielu plikach jest package main, to test sie wywali na twarz
//pliki umieszcza wosobnych folderach jak tutaj
// λ go test
// # _/C_/Users/dp/Desktop/PracowaniaProgramowania/backend [_/C_/Users/dp/Desktop/PracowaniaProgramowania/backend.test]
// .\duplication.go:10:6: main redeclared in this block
//         previous declaration at .\cw1.go:12:6
// .\echo1.go:8:6: main redeclared in this block
//         previous declaration at .\duplication.go:10:6
// .\echo2.go:9:6: main redeclared in this block
//         previous declaration at .\echo1.go:8:6
// .\hello.go:5:6: main redeclared in this block
//         previous declaration at .\echo2.go:9:6
// .\serverTest.go:12:6: main redeclared in this block
//         previous declaration at .\hello.go:5:6
// .\serverTest2.go:15:6: main redeclared in this block
//         previous declaration at .\serverTest.go:12:6
// .\tut1.go:37:6: main redeclared in this block
//         previous declaration at .\serverTest2.go:15:6
// .\tut2.go:13:6: Article redeclared in this block
//         previous declaration at .\tut1.go:11:6
// .\tut2.go:19:6: Articles redeclared in this block
//         previous declaration at .\tut1.go:17:6
// .\tut2.go:21:6: allArticles redeclared in this block
//         previous declaration at .\tut1.go:19:44
// .\tut2.go:21:6: too many errors
// FAIL    _/C_/Users/dp/Desktop/PracowaniaProgramowania/backend [build failed]
package main

import "testing"

func TestCalculate(t *testing.T) {
	if Calculate(2) != 4 {
		t.Error("Expected 2+2 to equal 4")
	}
	// if Calculate(2) != 4 {
	// 	t.Error("Expected 2+2 to equal 4")
	// }
}

// func TestCalculate2(t *testing.T) {
// 	if Calculate(2) != 8 {
// 		t.Error("Expected 2+2 to equal 8")
// 	}
// }

func TestTableCalculate(t *testing.T) {
	var tests = []struct {
		input     int
		excpected int
	}{
		{2, 4},
		{-1, 1},
		{0, 2},
		{9999, 10001},
	}

	//petelka foreach
	for _, test := range tests {
		if output := Calculate(test.input); output != test.excpected { //przypisanie a potem porownanie: 2 instrukcje w jednj linii - dlatego ;
			t.Error("Tested Failed: {} inputted, {} expected , received {}", test.input, test.excpected, output) //jak .format() w py
		}
	}

}

//brak funkcji main o.Ó
//funkcje wykonuja sie po kolei jak w pythonie