1 // Copyright (c) 2015-2016 The Khronos Group Inc.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 // Assembler tests for literal numbers and literal strings.
16
17 #include <string>
18
19 #include "test/test_fixture.h"
20
21 namespace spvtools {
22 namespace {
23
24 using spvtest::TextToBinaryTest;
25
TEST_F(TextToBinaryTest,LiteralStringInPlaceOfLiteralNumber)26 TEST_F(TextToBinaryTest, LiteralStringInPlaceOfLiteralNumber) {
27 EXPECT_EQ(
28 R"(Invalid unsigned integer literal: "I shouldn't be a string")",
29 CompileFailure(R"(OpSource GLSL "I shouldn't be a string")"));
30 }
31
TEST_F(TextToBinaryTest,GarbageInPlaceOfLiteralString)32 TEST_F(TextToBinaryTest, GarbageInPlaceOfLiteralString) {
33 EXPECT_EQ("Invalid literal string 'nice-source-code'.",
34 CompileFailure("OpSourceExtension nice-source-code"));
35 }
36
TEST_F(TextToBinaryTest,LiteralNumberInPlaceOfLiteralString)37 TEST_F(TextToBinaryTest, LiteralNumberInPlaceOfLiteralString) {
38 EXPECT_EQ("Expected literal string, found literal number '1000'.",
39 CompileFailure("OpSourceExtension 1000"));
40 }
41
TEST_F(TextToBinaryTest,LiteralFloatInPlaceOfLiteralInteger)42 TEST_F(TextToBinaryTest, LiteralFloatInPlaceOfLiteralInteger) {
43 EXPECT_EQ("Invalid unsigned integer literal: 10.5",
44 CompileFailure("OpSource GLSL 10.5"));
45
46 EXPECT_EQ("Invalid unsigned integer literal: 0.2",
47 CompileFailure(R"(OpMemberName %type 0.2 "member0.2")"));
48
49 EXPECT_EQ("Invalid unsigned integer literal: 32.42",
50 CompileFailure("%int = OpTypeInt 32.42 0"));
51
52 EXPECT_EQ("Invalid unsigned integer literal: 4.5",
53 CompileFailure("%mat = OpTypeMatrix %vec 4.5"));
54
55 EXPECT_EQ("Invalid unsigned integer literal: 1.5",
56 CompileFailure("OpExecutionMode %main LocalSize 1.5 1.6 1.7"));
57
58 EXPECT_EQ("Invalid unsigned integer literal: 0.123",
59 CompileFailure("%i32 = OpTypeInt 32 1\n"
60 "%c = OpConstant %i32 0.123"));
61 }
62
TEST_F(TextToBinaryTest,LiteralInt64)63 TEST_F(TextToBinaryTest, LiteralInt64) {
64 const std::string code =
65 "%1 = OpTypeInt 64 0\n%2 = OpConstant %1 123456789021\n";
66 EXPECT_EQ(code, EncodeAndDecodeSuccessfully(code));
67 }
68
TEST_F(TextToBinaryTest,LiteralDouble)69 TEST_F(TextToBinaryTest, LiteralDouble) {
70 const std::string code =
71 "%1 = OpTypeFloat 64\n%2 = OpSpecConstant %1 3.14159265358979\n";
72 EXPECT_EQ(code, EncodeAndDecodeSuccessfully(code));
73 }
74
TEST_F(TextToBinaryTest,LiteralStringASCIILong)75 TEST_F(TextToBinaryTest, LiteralStringASCIILong) {
76 // SPIR-V allows strings up to 65535 characters.
77 // Test the simple case of UTF-8 code points corresponding
78 // to ASCII characters.
79 EXPECT_EQ(65535, SPV_LIMIT_LITERAL_STRING_UTF8_CHARS_MAX);
80 const std::string code =
81 "OpSourceExtension \"" +
82 std::string(SPV_LIMIT_LITERAL_STRING_UTF8_CHARS_MAX, 'o') + "\"\n";
83 EXPECT_EQ(code, EncodeAndDecodeSuccessfully(code));
84 }
85
TEST_F(TextToBinaryTest,LiteralStringUTF8LongEncodings)86 TEST_F(TextToBinaryTest, LiteralStringUTF8LongEncodings) {
87 // SPIR-V allows strings up to 65535 characters.
88 // Test the case of many Unicode characters, each of which has
89 // a 4-byte UTF-8 encoding.
90
91 // An instruction is at most 65535 words long. The first one
92 // contains the wordcount and opcode. So the worst case number of
93 // 4-byte UTF-8 characters is 65533, since we also need to
94 // store a terminating null character.
95
96 // This string fits exactly into 65534 words.
97 const std::string good_string =
98 spvtest::MakeLongUTF8String(65533)
99 // The following single character has a 3 byte encoding,
100 // which fits snugly against the terminating null.
101 + "\xe8\x80\x80";
102
103 // These strings will overflow any instruction with 0 or 1 other
104 // arguments, respectively.
105 const std::string bad_0_arg_string = spvtest::MakeLongUTF8String(65534);
106 const std::string bad_1_arg_string = spvtest::MakeLongUTF8String(65533);
107
108 const std::string good_code = "OpSourceExtension \"" + good_string + "\"\n";
109 EXPECT_EQ(good_code, EncodeAndDecodeSuccessfully(good_code));
110
111 // Prove that it works on more than one instruction.
112 const std::string good_code_2 = "OpSourceContinued \"" + good_string + "\"\n";
113 EXPECT_EQ(good_code, EncodeAndDecodeSuccessfully(good_code));
114
115 // Failure cases.
116 EXPECT_EQ("Instruction too long: more than 65535 words.",
117 CompileFailure("OpSourceExtension \"" + bad_0_arg_string + "\"\n"));
118 EXPECT_EQ("Instruction too long: more than 65535 words.",
119 CompileFailure("OpSourceContinued \"" + bad_0_arg_string + "\"\n"));
120 EXPECT_EQ("Instruction too long: more than 65535 words.",
121 CompileFailure("OpName %target \"" + bad_1_arg_string + "\"\n"));
122 }
123
124 } // namespace
125 } // namespace spvtools
126