wehub-resource-sync
91 lines
3.1 KiB
C#
91 lines
3.1 KiB
C#
using Xunit;
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namespace MsAgentDotnet.AgentTests;
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// Exercises A2uiSecondaryToolCaller.ParseDesignToolArguments, the response-body
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// parser that backs the A2UI secondary tool caller. The parser must:
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// * return the tool-call arguments on a well-formed response,
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// * return null for the expected "no usable tool call" cases, and
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// * throw A2uiUpstreamResponseException (NOT an uncaught KeyNotFoundException
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// or JsonException) for a structurally-malformed-but-2xx body, carrying the
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// upstream body for server-side logging.
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public class A2uiSecondaryToolCallerParseTests
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{
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private const string DesignTool = "_design_a2ui_surface";
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[Fact]
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public void WellFormedToolCall_ReturnsArguments()
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{
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var body = $$"""
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{
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"choices": [
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{ "message": { "tool_calls": [
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{ "function": { "name": "{{DesignTool}}", "arguments": "{\"surfaceId\":\"s\"}" } }
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] } }
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]
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}
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""";
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var result = A2uiSecondaryToolCaller.ParseDesignToolArguments(body);
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Assert.Equal("{\"surfaceId\":\"s\"}", result);
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}
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[Theory]
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[InlineData("{\"choices\":[]}")] // empty choices
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[InlineData("{\"other\":1}")] // no choices
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[InlineData("{\"choices\":[{\"message\":{}}]}")] // no tool_calls
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[InlineData("{\"choices\":[{\"message\":{\"tool_calls\":[]}}]}")] // empty tool_calls
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public void NoUsableToolCall_ReturnsNull(string body)
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{
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Assert.Null(A2uiSecondaryToolCaller.ParseDesignToolArguments(body));
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}
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[Fact]
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public void WrongToolName_ReturnsNull()
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{
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var body = """
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{"choices":[{"message":{"tool_calls":[{"function":{"name":"other","arguments":"{}"}}]}}]}
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""";
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Assert.Null(A2uiSecondaryToolCaller.ParseDesignToolArguments(body));
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}
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[Fact]
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public void NonJsonBody_Throws_WithBodyCaptured()
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{
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const string body = "not json at all";
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var ex = Assert.Throws<A2uiUpstreamResponseException>(
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() => A2uiSecondaryToolCaller.ParseDesignToolArguments(body));
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Assert.Equal(body, ex.Body);
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}
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[Fact]
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public void ChoiceWithoutMessage_Throws_InsteadOfKeyNotFound()
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{
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// A choice object that lacks "message" — the bare GetProperty would
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// have thrown an uncaught KeyNotFoundException before the guard.
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const string body = "{\"choices\":[{\"index\":0}]}";
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var ex = Assert.Throws<A2uiUpstreamResponseException>(
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() => A2uiSecondaryToolCaller.ParseDesignToolArguments(body));
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Assert.Equal(body, ex.Body);
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}
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[Fact]
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public void ToolCallWithoutFunction_Throws_InsteadOfKeyNotFound()
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{
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// A tool_calls entry that lacks "function" — the bare GetProperty would
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// have thrown an uncaught KeyNotFoundException before the guard.
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const string body = "{\"choices\":[{\"message\":{\"tool_calls\":[{\"id\":\"x\"}]}}]}";
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var ex = Assert.Throws<A2uiUpstreamResponseException>(
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() => A2uiSecondaryToolCaller.ParseDesignToolArguments(body));
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Assert.Equal(body, ex.Body);
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}
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}
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