//Calendar implementation for the HTWK Leipzig timetable. Evaluation and display of the individual dates in iCal format.
//Copyright (C) 2024 HTWKalender support@htwkalender.de

//This program is free software: you can redistribute it and/or modify
//it under the terms of the GNU Affero General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//(at your option) any later version.

//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU Affero General Public License for more details.

//You should have received a copy of the GNU Affero General Public License
//along with this program.  If not, see <https://www.gnu.org/licenses/>.

package functions

import (
	"testing"
)

func TestOnlyWhitespace(t *testing.T) {
	type args struct {
		word string
	}
	tests := []struct {
		name string
		args args
		want bool
	}{
		{"empty string", args{""}, true},
		{"whitespace", args{" "}, true},
		{"whitespaces", args{"   "}, true},
		{"whitespaces and tabs", args{"   \t"}, true},
		{"whitespaces and tabs and newlines", args{"   \t\n"}, true},
		{"whitespaces and tabs and newlines and non-breaking spaces", args{"   \t\n\u00A0"}, true},
		{"non-whitespace", args{"a"}, false},
		{"non-whitespaces", args{"abc"}, false},
		{"non-whitespaces and tabs", args{"abc\t"}, false},
		{"non-whitespaces and tabs and newlines", args{"abc\t\n"}, false},
		{"non-whitespaces and tabs and newlines and non-breaking spaces", args{"abc\t\n\u00A0"}, false},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := OnlyWhitespace(tt.args.word); got != tt.want {
				t.Errorf("OnlyWhitespace() = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestHashString(t *testing.T) {
	type args struct {
		s string
	}
	tests := []struct {
		name string
		args args
		want string
	}{
		{"empty string", args{""}, "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"},
		{"non-empty string", args{"abc"}, "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := HashString(tt.args.s); got != tt.want {
				t.Errorf("HashString() = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestIsSeparator(t *testing.T) {
	type args struct {
		separator []rune
		character rune
	}
	tests := []struct {
		name string
		args args
		want bool
	}{
		{"empty separator", args{[]rune{}, 'a'}, false},
		{"separator with one rune equal", args{[]rune{'a'}, 'a'}, true},
		{"separator with one rune different", args{[]rune{'a'}, 'b'}, false},
		{"separator with two runes equal", args{[]rune{'a', 'b'}, 'a'}, true},
		{"separator with two runes equal second", args{[]rune{'a', 'b'}, 'b'}, true},
		{"separator with two runes different", args{[]rune{'a', 'b'}, 'c'}, false},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := IsSeparator(tt.args.separator)(tt.args.character); got != tt.want {
				t.Errorf("IsSeparator()() = %v, want %v", got, tt.want)
			}
		})
	}
}