[#3227] feat(leetcode): add c# and golang solution

problems/3227-vowels-game-in-a-string/test/main_test.go

@@ -0,0 +1,188 @@
+// LeetCode 3227: Vowels Game in a String 單元測試（Go testing）
+// Problem: Alice and Bob play a game. Alice removes substrings with odd vowels, 
+// Bob removes substrings with even vowels. Alice wins if string has any vowels.
+package vowels_test
+
+import (
+    "fmt"
+    "testing"
+    vowels "leetcode/3227-vowels-game-in-a-string/go"
+)
+
+func TestExample1(t *testing.T) {
+    // "leetcode" contains vowels: e,e,o,e
+    input := "leetcode"
+    got := vowels.DoesAliceWin(input)
+    want := true // Alice wins
+    if got != want {
+        t.Fatalf("input %q: want %v got %v", input, want, got)
+    }
+}
+
+func TestExample2(t *testing.T) {
+    // "bcdf" has no vowels
+    input := "bcdf"
+    got := vowels.DoesAliceWin(input)
+    want := false // Bob wins (Alice can't make first move)
+    if got != want {
+        t.Fatalf("input %q: want %v got %v", input, want, got)
+    }
+}
+
+func TestAllVowels(t *testing.T) {
+    // All vowels string - Alice removes entire string
+    input := "aeiou"
+    got := vowels.DoesAliceWin(input)
+    want := true
+    if got != want {
+        t.Fatalf("input %q: want %v got %v", input, want, got)
+    }
+}
+
+func TestSingleVowel(t *testing.T) {
+    // Single vowel - Alice removes it immediately
+    input := "a"
+    got := vowels.DoesAliceWin(input)
+    want := true
+    if got != want {
+        t.Fatalf("input %q: want %v got %v", input, want, got)
+    }
+}
+
+func TestSingleConsonant(t *testing.T) {
+    // Single consonant - Alice can't move
+    input := "b"
+    got := vowels.DoesAliceWin(input)
+    want := false
+    if got != want {
+        t.Fatalf("input %q: want %v got %v", input, want, got)
+    }
+}
+
+func TestMixedString(t *testing.T) {
+    // "programming" has vowels: o,a,i
+    input := "programming"
+    got := vowels.DoesAliceWin(input)
+    want := true // Alice can remove vowels
+    if got != want {
+        t.Fatalf("input %q: want %v got %v", input, want, got)
+    }
+}
+
+func TestLongStringNoVowels(t *testing.T) {
+    // All consonants - no vowels means Bob wins
+    input := "bcdfghjklmnpqrstvwxyz"
+    got := vowels.DoesAliceWin(input)
+    want := false
+    if got != want {
+        t.Fatalf("input %q: want %v got %v", input, want, got)
+    }
+}
+
+func TestRepeatedVowels(t *testing.T) {
+    // Even number of same vowels - Alice can leave 1 for Bob
+    input := "aaaa"
+    got := vowels.DoesAliceWin(input)
+    want := true
+    if got != want {
+        t.Fatalf("input %q: want %v got %v", input, want, got)
+    }
+}
+
+func TestEdgeCases(t *testing.T) {
+    testCases := []struct {
+        input string
+        want  bool
+        desc  string
+    }{
+        {"e", true, "single vowel"},
+        {"x", false, "single consonant"},
+        {"ab", true, "has vowel 'a'"},
+        {"xy", false, "no vowels"},
+        {"xabc", true, "vowel in middle"},
+        {"abcx", true, "vowel at start"},
+        {"xbca", true, "vowel at end"},
+    }
+
+    for _, tc := range testCases {
+        t.Run(tc.desc, func(t *testing.T) {
+            got := vowels.DoesAliceWin(tc.input)
+            if got != tc.want {
+                t.Fatalf("input %q (%s): want %v got %v", tc.input, tc.desc, tc.want, got)
+            }
+        })
+    }
+}
+
+func TestGameTheoryValidation(t *testing.T) {
+    testCases := []struct {
+        input string
+        want  bool
+        desc  string
+    }{
+        // If total vowels = 0: Alice loses
+        {"bcdfg", false, "no vowels - Alice can't move"},
+        {"rhythm", false, "no vowels (y not counted)"},
+        
+        // Any vowels > 0: Alice wins
+        {"hello", true, "e,o vowels - Alice wins"},
+        {"beautiful", true, "e,a,u,i,u vowels - Alice wins"},
+        {"code", true, "o,e vowels - Alice wins"},
+        {"education", true, "e,u,a,i,o vowels - Alice wins"},
+        {"queue", true, "u,e,u,e vowels - Alice wins"},
+    }
+
+    for _, tc := range testCases {
+        t.Run(tc.desc, func(t *testing.T) {
+            got := vowels.DoesAliceWin(tc.input)
+            if got != tc.want {
+                t.Fatalf("input %q (%s): want %v got %v", tc.input, tc.desc, tc.want, got)
+            }
+        })
+    }
+}
+
+func TestParameterized(t *testing.T) {
+    testCases := []struct {
+        input string
+        want  bool
+    }{
+        {"", false},        // empty string
+        {"aeiou", true},    // all vowels
+        {"bcdfg", false},   // all consonants
+        {"hello", true},    // mixed with vowels
+        {"rhythm", false},  // no vowels
+        {"queue", true},    // multiple same vowels
+        {"xyz", false},     // short no vowels
+        {"programming", true}, // longer mixed
+    }
+
+    for _, tc := range testCases {
+        t.Run(tc.input, func(t *testing.T) {
+            got := vowels.DoesAliceWin(tc.input)
+            if got != tc.want {
+                t.Errorf("doesAliceWin(%q) = %v, want %v", tc.input, got, tc.want)
+            }
+        })
+    }
+}
+
+// Benchmark test
+func BenchmarkDoesAliceWin(b *testing.B) {
+    testString := "abcdefghijklmnopqrstuvwxyz"
+    b.ResetTimer()
+    for i := 0; i < b.N; i++ {
+        vowels.DoesAliceWin(testString)
+    }
+}
+
+// Example test for documentation
+func ExampleDoesAliceWin() {
+    result1 := vowels.DoesAliceWin("leetcode")
+    result2 := vowels.DoesAliceWin("bcdf")
+    fmt.Println(result1)
+    fmt.Println(result2)
+    // Output:
+    // true
+    // false
+}