new runner

runner/common/stop_test.go

@@ -0,0 +1,129 @@
+package common
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestTruncateStop(t *testing.T) {
+	tests := []struct {
+		name          string
+		pieces        []string
+		stop          string
+		expected      []string
+		expectedTrunc bool
+	}{
+		{
+			name:          "Single word",
+			pieces:        []string{"hello", "world"},
+			stop:          "world",
+			expected:      []string{"hello"},
+			expectedTrunc: false,
+		},
+		{
+			name:          "Partial",
+			pieces:        []string{"hello", "wor"},
+			stop:          "or",
+			expected:      []string{"hello", "w"},
+			expectedTrunc: true,
+		},
+		{
+			name:          "Suffix",
+			pieces:        []string{"Hello", " there", "!"},
+			stop:          "!",
+			expected:      []string{"Hello", " there"},
+			expectedTrunc: false,
+		},
+		{
+			name:          "Suffix partial",
+			pieces:        []string{"Hello", " the", "re!"},
+			stop:          "there!",
+			expected:      []string{"Hello", " "},
+			expectedTrunc: true,
+		},
+		{
+			name:          "Middle",
+			pieces:        []string{"hello", " wor"},
+			stop:          "llo w",
+			expected:      []string{"he"},
+			expectedTrunc: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result, resultTrunc := TruncateStop(tt.pieces, tt.stop)
+			if !reflect.DeepEqual(result, tt.expected) || resultTrunc != tt.expectedTrunc {
+				t.Errorf("truncateStop(%v, %s): have %v (%v); want %v (%v)", tt.pieces, tt.stop, result, resultTrunc, tt.expected, tt.expectedTrunc)
+			}
+		})
+	}
+}
+
+func TestIncompleteUnicode(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		expected bool
+	}{
+		{
+			name:     "Basic",
+			input:    "hi",
+			expected: false,
+		},
+		{
+			name:     "Two byte",
+			input:    "hi" + string([]byte{0xc2, 0xa3}),
+			expected: false,
+		},
+		{
+			name:     "Two byte - missing last",
+			input:    "hi" + string([]byte{0xc2}),
+			expected: true,
+		},
+		{
+			name:     "Three byte",
+			input:    "hi" + string([]byte{0xe0, 0xA0, 0x80}),
+			expected: false,
+		},
+		{
+			name:     "Three byte - missing last",
+			input:    "hi" + string([]byte{0xe0, 0xA0}),
+			expected: true,
+		},
+		{
+			name:     "Three byte - missing last 2",
+			input:    "hi" + string([]byte{0xe0}),
+			expected: true,
+		},
+		{
+			name:     "Four byte",
+			input:    "hi" + string([]byte{0xf0, 0x92, 0x8a, 0xb7}),
+			expected: false,
+		},
+		{
+			name:     "Four byte - missing last",
+			input:    "hi" + string([]byte{0xf0, 0x92, 0x8a}),
+			expected: true,
+		},
+		{
+			name:     "Four byte - missing last 2",
+			input:    "hi" + string([]byte{0xf0, 0x92}),
+			expected: true,
+		},
+		{
+			name:     "Four byte - missing last 3",
+			input:    "hi" + string([]byte{0xf0}),
+			expected: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := IncompleteUnicode(tt.input)
+			if result != tt.expected {
+				t.Errorf("incompleteUnicode(%s): have %v; want %v", tt.input, result, tt.expected)
+			}
+		})
+	}
+}