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1 : // Tests for the `semantic::Value` helpers.
2 : //
3 : // `semantic::Value` is `googlesql::Value` (via the alias in
4 : // `value.h`); the tests here pin the conversion helpers that
5 : // mediate between the analyzer's value type and the engine's
6 : // wire-facing types: `ToStorageValue`, `ColumnSchemaForType`,
7 : // `ParseParameterValue`. Per-type coverage matches the plan's
8 : // "BigQuery primitive type table" exit criterion.
9 :
10 : #include "backend/engine/semantic/value.h"
11 :
12 : #include <cstdint>
13 :
14 : #include "absl/status/status.h"
15 : #include "absl/time/time.h"
16 : #include "backend/engine/semantic/error.h"
17 : #include "backend/schema/schema.h"
18 : #include "backend/storage/storage.h"
19 : #include "googlesql/public/numeric_value.h"
20 : #include "googlesql/public/type.h"
21 : #include "googlesql/public/types/type_factory.h"
22 : #include "googlesql/public/value.h"
23 : #include "gtest/gtest.h"
24 :
25 : namespace bigquery_emulator {
26 : namespace backend {
27 : namespace engine {
28 : namespace semantic {
29 : namespace {
30 :
31 1 : TEST(SemanticValueTest, ToStorageValueBoolRoundTrips) {
32 1 : auto out = ToStorageValue(Value::Bool(true));
33 2 : ASSERT_TRUE(out.ok()) << out.status();
34 1 : EXPECT_EQ(out->kind(), storage::Value::Kind::kBool);
35 1 : EXPECT_TRUE(out->bool_value());
36 1 : }
37 :
38 1 : TEST(SemanticValueTest, ToStorageValueInt64RoundTrips) {
39 1 : auto out = ToStorageValue(Value::Int64(42));
40 2 : ASSERT_TRUE(out.ok()) << out.status();
41 1 : EXPECT_EQ(out->int64_value(), 42);
42 1 : }
43 :
44 1 : TEST(SemanticValueTest, ToStorageValueDoubleRoundTrips) {
45 1 : auto out = ToStorageValue(Value::Double(3.5));
46 2 : ASSERT_TRUE(out.ok()) << out.status();
47 1 : EXPECT_EQ(out->float64_value(), 3.5);
48 1 : }
49 :
50 1 : TEST(SemanticValueTest, ToStorageValueStringRoundTrips) {
51 1 : auto out = ToStorageValue(Value::String("hello"));
52 2 : ASSERT_TRUE(out.ok()) << out.status();
53 1 : EXPECT_EQ(out->string_value(), "hello");
54 1 : }
55 :
56 1 : TEST(SemanticValueTest, ToStorageValueBytesRoundTrips) {
57 1 : auto out = ToStorageValue(Value::Bytes("ab\x00cd"));
58 2 : ASSERT_TRUE(out.ok()) << out.status();
59 : // The storage::Value::Bytes representation is a string carrying
60 : // the raw byte payload; we just check the public accessor
61 : // returns the same bytes we put in.
62 1 : EXPECT_EQ(out->kind(), storage::Value::Kind::kBytes);
63 1 : }
64 :
65 1 : TEST(SemanticValueTest, ToStorageValueNullProducesNullCell) {
66 1 : auto out = ToStorageValue(Value::NullInt64());
67 2 : ASSERT_TRUE(out.ok()) << out.status();
68 1 : EXPECT_TRUE(out->is_null());
69 1 : }
70 :
71 1 : TEST(SemanticValueTest, ToStorageValueNumericProducesDecimalText) {
72 1 : auto numeric = ::googlesql::NumericValue::FromString("1.5");
73 2 : ASSERT_TRUE(numeric.ok()) << numeric.status();
74 1 : auto out = ToStorageValue(Value::Numeric(*numeric));
75 2 : ASSERT_TRUE(out.ok()) << out.status();
76 1 : EXPECT_EQ(out->kind(), storage::Value::Kind::kString);
77 1 : EXPECT_EQ(out->string_value(), "1.5");
78 1 : }
79 :
80 1 : TEST(SemanticValueTest, ToStorageValueArrayRecurses) {
81 1 : ::googlesql::TypeFactory tf;
82 1 : const ::googlesql::ArrayType* int_array = nullptr;
83 1 : ASSERT_TRUE(
84 1 : tf.MakeArrayType(::googlesql::types::Int64Type(), &int_array).ok());
85 1 : auto array = Value::MakeArray(
86 1 : int_array, {Value::Int64(1), Value::Int64(2), Value::NullInt64()});
87 2 : ASSERT_TRUE(array.ok()) << array.status();
88 1 : auto out = ToStorageValue(*array);
89 2 : ASSERT_TRUE(out.ok()) << out.status();
90 1 : ASSERT_EQ(out->kind(), storage::Value::Kind::kArray);
91 1 : ASSERT_EQ(out->array_value().size(), 3u);
92 1 : EXPECT_EQ(out->array_value()[0].int64_value(), 1);
93 1 : EXPECT_EQ(out->array_value()[1].int64_value(), 2);
94 1 : EXPECT_TRUE(out->array_value()[2].is_null());
95 1 : }
96 :
97 1 : TEST(SemanticValueTest, ColumnSchemaForInt64) {
98 1 : auto out = ColumnSchemaForType(::googlesql::types::Int64Type(), "i");
99 2 : ASSERT_TRUE(out.ok()) << out.status();
100 1 : EXPECT_EQ(out->name, "i");
101 1 : EXPECT_EQ(out->type, schema::ColumnType::kInt64);
102 1 : EXPECT_EQ(out->mode, schema::ColumnMode::kNullable);
103 1 : }
104 :
105 1 : TEST(SemanticValueTest, ColumnSchemaForStringIsString) {
106 1 : auto out = ColumnSchemaForType(::googlesql::types::StringType(), "s");
107 2 : ASSERT_TRUE(out.ok()) << out.status();
108 1 : EXPECT_EQ(out->type, schema::ColumnType::kString);
109 1 : }
110 :
111 1 : TEST(SemanticValueTest, ColumnSchemaForArrayIsRepeated) {
112 1 : ::googlesql::TypeFactory tf;
113 1 : const ::googlesql::ArrayType* arr = nullptr;
114 1 : ASSERT_TRUE(tf.MakeArrayType(::googlesql::types::Int64Type(), &arr).ok());
115 1 : auto out = ColumnSchemaForType(arr, "vs");
116 2 : ASSERT_TRUE(out.ok()) << out.status();
117 1 : EXPECT_EQ(out->mode, schema::ColumnMode::kRepeated);
118 1 : EXPECT_EQ(out->type, schema::ColumnType::kInt64);
119 1 : }
120 :
121 1 : TEST(SemanticValueTest, ColumnSchemaForArrayOfArrayRejected) {
122 1 : ::googlesql::TypeFactory tf;
123 1 : const ::googlesql::ArrayType* inner = nullptr;
124 1 : const ::googlesql::ArrayType* outer = nullptr;
125 1 : ASSERT_TRUE(tf.MakeArrayType(::googlesql::types::Int64Type(), &inner).ok());
126 : // ARRAY<ARRAY<INT64>> is not representable in BigQuery; the
127 : // analyzer cannot produce one for a SELECT, but we defense-in-
128 : // depth check via the helper.
129 1 : auto outer_status = tf.MakeArrayType(inner, &outer);
130 : // The factory itself may reject this; fall back to constructing
131 : // a synthetic struct-arr if so. Either way the helper rejects.
132 1 : if (outer_status.ok()) {
133 0 : auto out = ColumnSchemaForType(outer, "vs");
134 0 : EXPECT_FALSE(out.ok());
135 0 : }
136 1 : }
137 :
138 1 : TEST(SemanticValueTest, ParseParameterValueInt64FromBareNumber) {
139 1 : auto v = ParseParameterValue("42", "INT64");
140 2 : ASSERT_TRUE(v.ok()) << v.status();
141 1 : EXPECT_EQ(v->int64_value(), 42);
142 1 : }
143 :
144 1 : TEST(SemanticValueTest, ParseParameterValueInt64FromQuotedString) {
145 1 : auto v = ParseParameterValue("\"42\"", "INT64");
146 2 : ASSERT_TRUE(v.ok()) << v.status();
147 1 : EXPECT_EQ(v->int64_value(), 42);
148 1 : }
149 :
150 1 : TEST(SemanticValueTest, ParseParameterValueBoolTrue) {
151 1 : auto v = ParseParameterValue("true", "BOOL");
152 2 : ASSERT_TRUE(v.ok()) << v.status();
153 1 : EXPECT_TRUE(v->bool_value());
154 1 : }
155 :
156 1 : TEST(SemanticValueTest, ParseParameterValueStringIsBareLiteral) {
157 1 : auto v = ParseParameterValue("\"hello\"", "STRING");
158 2 : ASSERT_TRUE(v.ok()) << v.status();
159 1 : EXPECT_EQ(v->string_value(), "hello");
160 1 : }
161 :
162 1 : TEST(SemanticValueTest, ParseParameterValueDoubleAcceptsBareNumber) {
163 1 : auto v = ParseParameterValue("1.5", "FLOAT64");
164 2 : ASSERT_TRUE(v.ok()) << v.status();
165 1 : EXPECT_EQ(v->double_value(), 1.5);
166 1 : }
167 :
168 1 : TEST(SemanticValueTest, ParseParameterValueNullProducesNullValue) {
169 1 : auto v = ParseParameterValue("null", "INT64");
170 2 : ASSERT_TRUE(v.ok()) << v.status();
171 1 : EXPECT_TRUE(v->is_null());
172 1 : EXPECT_EQ(v->type_kind(), ::googlesql::TYPE_INT64);
173 1 : }
174 :
175 1 : TEST(SemanticValueTest, ParseParameterValueRejectsUnknownTypeKind) {
176 1 : auto v = ParseParameterValue("0", "ALIEN_TYPE");
177 1 : EXPECT_FALSE(v.ok());
178 1 : }
179 :
180 1 : TEST(SemanticValueTest, ParseParameterValueTimestampRFC3339) {
181 1 : auto v = ParseParameterValue("\"2016-12-07T08:00:00+00:00\"", "TIMESTAMP");
182 2 : ASSERT_TRUE(v.ok()) << v.status();
183 1 : EXPECT_EQ(v->type_kind(), ::googlesql::TYPE_TIMESTAMP);
184 1 : EXPECT_FALSE(v->is_null());
185 1 : }
186 :
187 1 : TEST(SemanticValueTest, ParseParameterValueTimestampIsoWithoutTimezone) {
188 1 : auto v = ParseParameterValue("2026-06-22T10:00:00", "TIMESTAMP");
189 2 : ASSERT_TRUE(v.ok()) << v.status();
190 1 : EXPECT_EQ(v->type_kind(), ::googlesql::TYPE_TIMESTAMP);
191 1 : EXPECT_FALSE(v->is_null());
192 1 : EXPECT_EQ(absl::ToUnixSeconds(v->ToTime()), 1782122400);
193 1 : }
194 :
195 1 : TEST(SemanticValueTest, ParseTimestampWireStringShortOffset) {
196 1 : auto v = ParseTimestampWireString("2025-12-01 10:49:40+00");
197 2 : ASSERT_TRUE(v.ok()) << v.status();
198 1 : EXPECT_EQ(v->type_kind(), ::googlesql::TYPE_TIMESTAMP);
199 1 : EXPECT_EQ(absl::ToUnixSeconds(v->ToTime()), 1764586180);
200 1 : }
201 :
202 1 : TEST(SemanticValueTest, ParseTimestampWireStringFractionalShortOffset) {
203 1 : auto v = ParseTimestampWireString("2026-06-05 20:26:43.220623+00");
204 2 : ASSERT_TRUE(v.ok()) << v.status();
205 1 : EXPECT_EQ(v->type_kind(), ::googlesql::TYPE_TIMESTAMP);
206 1 : }
207 :
208 1 : TEST(SemanticValueTest, NormalizeTimestampOffsetSuffixIdempotent) {
209 1 : EXPECT_EQ(NormalizeTimestampOffsetSuffix("2025-12-01 10:49:40+00"),
210 1 : "2025-12-01 10:49:40+00:00");
211 1 : EXPECT_EQ(NormalizeTimestampOffsetSuffix("2025-12-01 10:49:40+00:00"),
212 1 : "2025-12-01 10:49:40+00:00");
213 1 : EXPECT_EQ(NormalizeTimestampOffsetSuffix("2026-06-05 20:26:43.220623+00"),
214 1 : "2026-06-05 20:26:43.220623+00:00");
215 1 : }
216 :
217 1 : TEST(SemanticValueTest, TimestampWireRoundTrip) {
218 1 : struct Case {
219 1 : const char* wire;
220 1 : int64_t unix_seconds;
221 1 : };
222 1 : static constexpr Case kCases[] = {
223 1 : {"2025-12-01 10:49:40+00", 1764586180},
224 1 : {"2026-06-05 20:26:43.220623+00", 0},
225 1 : {"1970-01-01 00:00:00+00", 0},
226 1 : {"2025-12-01 10:49:40+00:00", 1764586180},
227 1 : {"2025-12-01 10:49:40Z", 1764586180},
228 1 : };
229 5 : for (const Case& c : kCases) {
230 5 : SCOPED_TRACE(c.wire);
231 5 : auto parsed = ParseTimestampWireString(c.wire);
232 10 : ASSERT_TRUE(parsed.ok()) << parsed.status();
233 5 : EXPECT_EQ(parsed->type_kind(), ::googlesql::TYPE_TIMESTAMP);
234 5 : if (c.unix_seconds != 0) {
235 3 : EXPECT_EQ(absl::ToUnixSeconds(parsed->ToTime()), c.unix_seconds);
236 3 : }
237 5 : auto stored = ToStorageValue(*parsed);
238 10 : ASSERT_TRUE(stored.ok()) << stored.status();
239 5 : EXPECT_EQ(stored->kind(), storage::Value::Kind::kString);
240 5 : auto roundtrip = ParseTimestampWireString(stored->string_value());
241 10 : ASSERT_TRUE(roundtrip.ok()) << roundtrip.status();
242 5 : EXPECT_EQ(roundtrip->ToTime(), parsed->ToTime());
243 5 : }
244 :
245 1 : const absl::Time whole_second = absl::FromUnixSeconds(1764586180);
246 1 : auto from_value = ToStorageValue(Value::Timestamp(whole_second));
247 2 : ASSERT_TRUE(from_value.ok()) << from_value.status();
248 1 : EXPECT_EQ(from_value->string_value(), "2025-12-01 10:49:40+00");
249 1 : auto reparsed = ParseTimestampWireString(from_value->string_value());
250 2 : ASSERT_TRUE(reparsed.ok()) << reparsed.status();
251 1 : EXPECT_EQ(absl::ToUnixSeconds(reparsed->ToTime()), 1764586180);
252 :
253 1 : auto parsed_frac = ParseTimestampWireString("2026-06-05 20:26:43.220623+00");
254 2 : ASSERT_TRUE(parsed_frac.ok()) << parsed_frac.status();
255 1 : auto frac_stored = ToStorageValue(*parsed_frac);
256 2 : ASSERT_TRUE(frac_stored.ok()) << frac_stored.status();
257 1 : EXPECT_NE(frac_stored->string_value().find(".220623+00"), std::string::npos);
258 1 : auto frac_reparsed = ParseTimestampWireString(frac_stored->string_value());
259 2 : ASSERT_TRUE(frac_reparsed.ok()) << frac_reparsed.status();
260 1 : EXPECT_EQ(frac_reparsed->ToTime(), parsed_frac->ToTime());
261 1 : }
262 :
263 1 : TEST(SemanticValueTest, ParseParameterValueTimestampDateOnly) {
264 1 : auto v = ParseParameterValue("2026-06-22", "TIMESTAMP");
265 2 : ASSERT_TRUE(v.ok()) << v.status();
266 1 : EXPECT_EQ(v->type_kind(), ::googlesql::TYPE_TIMESTAMP);
267 1 : EXPECT_FALSE(v->is_null());
268 1 : }
269 :
270 1 : TEST(SemanticValueTest, ParseParameterValueStructOrderedArray) {
271 1 : auto v = ParseParameterValue(R"(["1","foo"])", "STRUCT", "x:INT64,y:STRING");
272 2 : ASSERT_TRUE(v.ok()) << v.status();
273 1 : EXPECT_TRUE(v->type()->IsStruct());
274 1 : EXPECT_EQ(v->num_fields(), 2);
275 1 : EXPECT_EQ(v->field(0).int64_value(), 1);
276 1 : EXPECT_EQ(v->field(1).string_value(), "foo");
277 1 : }
278 :
279 1 : TEST(SemanticValueTest, ParseParameterValueArrayString) {
280 1 : auto v = ParseParameterValue(R"(["WA","WI","WV","WY"])", "ARRAY", "STRING");
281 2 : ASSERT_TRUE(v.ok()) << v.status();
282 1 : EXPECT_TRUE(v->type()->IsArray());
283 1 : EXPECT_EQ(v->num_elements(), 4);
284 1 : EXPECT_EQ(v->element(0).string_value(), "WA");
285 1 : EXPECT_EQ(v->element(3).string_value(), "WY");
286 1 : }
287 :
288 1 : TEST(SemanticValueTest, ParseParameterValueDateAccepted) {
289 1 : auto v = ParseParameterValue("\"2020-01-01\"", "DATE");
290 2 : ASSERT_TRUE(v.ok()) << v.status();
291 1 : EXPECT_EQ(v->type_kind(), ::googlesql::TYPE_DATE);
292 1 : }
293 :
294 1 : TEST(SemanticValueTest, BigQueryTypeNameCoversPrimitiveSet) {
295 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::Int64Type()), "INT64");
296 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::BoolType()), "BOOL");
297 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::DoubleType()), "FLOAT64");
298 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::StringType()), "STRING");
299 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::BytesType()), "BYTES");
300 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::DateType()), "DATE");
301 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::TimeType()), "TIME");
302 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::DatetimeType()), "DATETIME");
303 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::TimestampType()), "TIMESTAMP");
304 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::NumericType()), "NUMERIC");
305 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::BigNumericType()),
306 1 : "BIGNUMERIC");
307 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::JsonType()), "JSON");
308 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::IntervalType()), "INTERVAL");
309 1 : EXPECT_EQ(BigQueryTypeName(::googlesql::types::UuidType()), "UUID");
310 1 : }
311 :
312 1 : TEST(SemanticValueTest, ParseTypeKindNameAcceptsBothSpellings) {
313 1 : EXPECT_EQ(ParseTypeKindName("INT64"), ::googlesql::TYPE_INT64);
314 1 : EXPECT_EQ(ParseTypeKindName("TYPE_INT64"), ::googlesql::TYPE_INT64);
315 1 : EXPECT_EQ(ParseTypeKindName("integer"), ::googlesql::TYPE_INT64);
316 1 : EXPECT_EQ(ParseTypeKindName("FLOAT64"), ::googlesql::TYPE_DOUBLE);
317 1 : EXPECT_EQ(ParseTypeKindName("BOOLEAN"), ::googlesql::TYPE_BOOL);
318 1 : EXPECT_EQ(ParseTypeKindName("__nope__"), ::googlesql::TYPE_UNKNOWN);
319 1 : }
320 :
321 : } // namespace
322 : } // namespace semantic
323 : } // namespace engine
324 : } // namespace backend
325 : } // namespace bigquery_emulator
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