File size: 6,545 Bytes
4e23b01 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | import { ScriptedEchoChatProvider } from './fixtures/echo-provider';
import { ChatProviderError } from '#/errors';
import type {
AudioURLPart,
StreamedMessagePart,
TextPart,
ToolCall,
ToolCallPart,
VideoURLPart,
} from '#/message';
import { describe, it, expect } from 'vitest';
describe('ScriptedEchoChatProvider', () => {
it('streams parts from first and second scripts', async () => {
const dsl = [
'id: scripted-1',
'usage: {"input_other": 4, "output": 1, "input_cache_read": 2}',
'text: Hello,',
'text: world!',
'think: thinking...',
'image_url: {"url": "https://example.com/image.png", "id": "img-1"}',
'audio_url: https://example.com/audio.mp3',
'video_url: https://example.com/video.mp4',
'tool_call: {"id": "call-1", "name": "search", "arguments": "{\\"q\\":\\"python\\"", "extras": {"source": "test"}}',
'tool_call_part: {"arguments_part": "}"}',
].join('\n');
const secondDsl = ['id: scripted-2', 'text: second turn'].join('\n');
const provider = new ScriptedEchoChatProvider([dsl, secondDsl]);
// First call
const parts: StreamedMessagePart[] = [];
const stream = await provider.generate('', [], []);
for await (const part of stream) {
parts.push(part);
}
expect(stream.id).toBe('scripted-1');
expect(stream.usage).toEqual({
inputOther: 4,
output: 1,
inputCacheRead: 2,
inputCacheCreation: 0,
});
expect(parts).toEqual([
{ type: 'text', text: 'Hello,' } satisfies TextPart,
{ type: 'text', text: ' world!' } satisfies TextPart,
{ type: 'think', think: 'thinking...' },
{
type: 'image_url',
imageUrl: { url: 'https://example.com/image.png', id: 'img-1' },
},
{
type: 'audio_url',
audioUrl: { url: 'https://example.com/audio.mp3' },
} satisfies AudioURLPart,
{
type: 'video_url',
videoUrl: { url: 'https://example.com/video.mp4' },
} satisfies VideoURLPart,
{
type: 'function',
id: 'call-1',
name: 'search', arguments: '{"q":"python"',
} satisfies ToolCall,
{ type: 'tool_call_part', argumentsPart: '}' } satisfies ToolCallPart,
]);
// Second call
const secondStream = await provider.generate('', [], []);
const secondParts: StreamedMessagePart[] = [];
for await (const part of secondStream) {
secondParts.push(part);
}
expect(secondStream.id).toBe('scripted-2');
expect(secondStream.usage).toBeNull();
expect(secondParts).toEqual([{ type: 'text', text: 'second turn' }]);
});
it('throws when scripts are exhausted', async () => {
const provider = new ScriptedEchoChatProvider(['text: only once']);
await provider.generate('', [], []);
await expect(provider.generate('', [], [])).rejects.toThrow(ChatProviderError);
});
it('rejects non-string arguments in tool_call', async () => {
const dsl = 'tool_call: {"id": "call-1", "name": "search", "arguments": {"q": "python"}}';
const provider = new ScriptedEchoChatProvider([dsl]);
await expect(provider.generate('', [], [])).rejects.toThrow(ChatProviderError);
});
it('rejects empty DSL content', async () => {
const provider = new ScriptedEchoChatProvider(['# comment only\n```']);
await expect(provider.generate('', [], [])).rejects.toThrow(ChatProviderError);
});
it('has correct default properties', () => {
const provider = new ScriptedEchoChatProvider([]);
expect(provider.name).toBe('scripted_echo');
expect(provider.modelName).toBe('scripted_echo');
expect(provider.thinkingEffort).toBeNull();
});
it('withThinking returns a new provider with remaining scripts', async () => {
const provider = new ScriptedEchoChatProvider(['text: first', 'text: second']);
// consume first script
await provider.generate('', [], []);
const newProvider = provider.withThinking('high');
expect(newProvider).toBeInstanceOf(ScriptedEchoChatProvider);
expect(newProvider).not.toBe(provider);
// new provider should have only the remaining script
const stream = await newProvider.generate('', [], []);
const parts: StreamedMessagePart[] = [];
for await (const part of stream) {
parts.push(part);
}
expect(parts).toEqual([{ type: 'text', text: 'second' }]);
});
it('exposes per-script finish_reason values across sequential generate() calls', async () => {
// Each script carries a different DSL finish_reason and the returned
// stream must expose the right normalized + raw pair.
const scripts = [
['id: scripted-fr-1', 'text: turn-1', 'finish_reason: stop'].join('\n'),
['id: scripted-fr-2', 'text: turn-2', 'finish_reason: length'].join('\n'),
['id: scripted-fr-3', 'text: turn-3', 'finish_reason: tool_calls'].join('\n'),
['id: scripted-fr-4', 'text: turn-4', 'finish_reason: null'].join('\n'),
['id: scripted-fr-5', 'text: turn-5'].join('\n'), // default
];
const provider = new ScriptedEchoChatProvider(scripts);
const expected: Array<{
finishReason: 'completed' | 'tool_calls' | 'truncated' | null;
rawFinishReason: string | null;
}> = [
{ finishReason: 'completed', rawFinishReason: 'stop' },
{ finishReason: 'truncated', rawFinishReason: 'length' },
{ finishReason: 'tool_calls', rawFinishReason: 'tool_calls' },
{ finishReason: null, rawFinishReason: null },
{ finishReason: 'completed', rawFinishReason: 'stop' },
];
for (const exp of expected) {
const stream = await provider.generate('', [], []);
for await (const _ of stream) {
void _;
}
expect({
finishReason: stream.finishReason,
rawFinishReason: stream.rawFinishReason,
}).toEqual(exp);
}
});
it('generate merges tool_call arguments via mergeInPlace', async () => {
const dsl = [
'id: scripted-merge-1',
'tool_call: {"id": "call-1", "name": "search", "arguments": "{\\"q\\":\\"py"}',
'tool_call_part: {"arguments_part": "thon\\"}"}',
].join('\n');
const provider = new ScriptedEchoChatProvider([dsl]);
const { generate } = await import('#/generate');
const result = await generate(provider, '', [], []);
expect(result.message.toolCalls).toHaveLength(1);
const tc = result.message.toolCalls[0]!;
expect(tc.id).toBe('call-1');
expect(tc.name).toBe('search');
expect(tc.arguments).toBe('{"q":"python"}');
});
});
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