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backend/internal/util/claude_schema_test.go

@@ -0,0 +1,114 @@
+package util
+
+import "testing"
+
+func TestNormalizeClaudeToolInputSchema(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		expected string
+	}{
+		{
+			name: "root anyOf without type",
+			input: `{
+				"anyOf": [
+					{"type":"object","properties":{"a":{"type":"string"}}},
+					{"type":"object","properties":{"b":{"type":"integer"}}}
+				]
+			}`,
+			expected: `{
+				"type":"object",
+				"properties":{
+					"a":{"type":"string"},
+					"b":{"type":"integer"}
+				}
+			}`,
+		},
+		{
+			name: "root oneOf keeps nested union",
+			input: `{
+				"type":"object",
+				"properties":{
+					"nested":{"oneOf":[{"type":"string"},{"type":"number"}]}
+				},
+				"oneOf":[
+					{"properties":{"a":{"type":"string"}},"required":["a"]},
+					{"properties":{"b":{"type":"string"}},"required":["b"]}
+				]
+			}`,
+			expected: `{
+				"type":"object",
+				"properties":{
+					"nested":{"oneOf":[{"type":"string"},{"type":"number"}]},
+					"a":{"type":"string"},
+					"b":{"type":"string"}
+				}
+			}`,
+		},
+		{
+			name: "root anyOf drops alternative required fields",
+			input: `{
+				"type":"object",
+				"properties":{"a":{"type":"string"},"b":{"type":"string"}},
+				"anyOf":[{"required":["a"]},{"required":["b"]}]
+			}`,
+			expected: `{
+				"type":"object",
+				"properties":{"a":{"type":"string"},"b":{"type":"string"}}
+			}`,
+		},
+		{
+			name: "root allOf merges properties and required fields",
+			input: `{
+				"type":"object",
+				"properties":{"base":{"type":"boolean"}},
+				"required":["base"],
+				"allOf":[
+					{"type":"object","properties":{"a":{"type":"string"}},"required":["a"]},
+					{"properties":{"b":{"type":"integer"}},"required":["a","b"]}
+				]
+			}`,
+			expected: `{
+				"type":"object",
+				"properties":{
+					"base":{"type":"boolean"},
+					"a":{"type":"string"},
+					"b":{"type":"integer"}
+				},
+				"required":["base","a","b"]
+			}`,
+		},
+		{
+			name: "ordinary object schema",
+			input: `{
+				"type":"object",
+				"properties":{"query":{"type":"string"}},
+				"required":["query"],
+				"additionalProperties":false
+			}`,
+			expected: `{
+				"type":"object",
+				"properties":{"query":{"type":"string"}},
+				"required":["query"],
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name:     "invalid schema",
+			input:    `{"type":`,
+			expected: `{"type":"object","properties":{}}`,
+		},
+		{
+			name:     "boolean schema",
+			input:    `true`,
+			expected: `{"type":"object","properties":{}}`,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			actual := NormalizeClaudeToolInputSchema([]byte(test.input))
+			compareJSON(t, test.expected, string(actual))
+		})
+	}
+}