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
|
// This is the implementation of the test harness.
// For the actual test cases, see test/compare_output.zig.
const std = @import("std");
const builtin = std.builtin;
const build = std.build;
const ArrayList = std.ArrayList;
const fmt = std.fmt;
const mem = std.mem;
const fs = std.fs;
const warn = std.debug.warn;
const Mode = builtin.Mode;
pub const CompareOutputContext = struct {
b: *build.Builder,
step: *build.Step,
test_index: usize,
test_filter: ?[]const u8,
modes: []const Mode,
const Special = enum {
None,
Asm,
RuntimeSafety,
};
const TestCase = struct {
name: []const u8,
sources: ArrayList(SourceFile),
expected_output: []const u8,
link_libc: bool,
special: Special,
cli_args: []const []const u8,
const SourceFile = struct {
filename: []const u8,
source: []const u8,
};
pub fn addSourceFile(self: *TestCase, filename: []const u8, source: []const u8) void {
self.sources.append(SourceFile{
.filename = filename,
.source = source,
}) catch unreachable;
}
pub fn setCommandLineArgs(self: *TestCase, args: []const []const u8) void {
self.cli_args = args;
}
};
pub fn createExtra(self: *CompareOutputContext, name: []const u8, source: []const u8, expected_output: []const u8, special: Special) TestCase {
var tc = TestCase{
.name = name,
.sources = ArrayList(TestCase.SourceFile).init(self.b.allocator),
.expected_output = expected_output,
.link_libc = false,
.special = special,
.cli_args = &[_][]const u8{},
};
const root_src_name = if (special == Special.Asm) "source.s" else "source.zig";
tc.addSourceFile(root_src_name, source);
return tc;
}
pub fn create(self: *CompareOutputContext, name: []const u8, source: []const u8, expected_output: []const u8) TestCase {
return createExtra(self, name, source, expected_output, Special.None);
}
pub fn addC(self: *CompareOutputContext, name: []const u8, source: []const u8, expected_output: []const u8) void {
var tc = self.create(name, source, expected_output);
tc.link_libc = true;
self.addCase(tc);
}
pub fn add(self: *CompareOutputContext, name: []const u8, source: []const u8, expected_output: []const u8) void {
const tc = self.create(name, source, expected_output);
self.addCase(tc);
}
pub fn addAsm(self: *CompareOutputContext, name: []const u8, source: []const u8, expected_output: []const u8) void {
const tc = self.createExtra(name, source, expected_output, Special.Asm);
self.addCase(tc);
}
pub fn addRuntimeSafety(self: *CompareOutputContext, name: []const u8, source: []const u8) void {
const tc = self.createExtra(name, source, undefined, Special.RuntimeSafety);
self.addCase(tc);
}
pub fn addCase(self: *CompareOutputContext, case: TestCase) void {
const b = self.b;
const write_src = b.addWriteFiles();
for (case.sources.items) |src_file| {
write_src.add(src_file.filename, src_file.source);
}
switch (case.special) {
Special.Asm => {
const annotated_case_name = fmt.allocPrint(self.b.allocator, "assemble-and-link {s}", .{
case.name,
}) catch unreachable;
if (self.test_filter) |filter| {
if (mem.indexOf(u8, annotated_case_name, filter) == null) return;
}
const exe = b.addExecutable("test", null);
exe.addAssemblyFileFromWriteFileStep(write_src, case.sources.items[0].filename);
const run = exe.run();
run.addArgs(case.cli_args);
run.expectStdErrEqual("");
run.expectStdOutEqual(case.expected_output);
self.step.dependOn(&run.step);
},
Special.None => {
for (self.modes) |mode| {
const annotated_case_name = fmt.allocPrint(self.b.allocator, "{s} {s} ({s})", .{
"compare-output",
case.name,
@tagName(mode),
}) catch unreachable;
if (self.test_filter) |filter| {
if (mem.indexOf(u8, annotated_case_name, filter) == null) continue;
}
const basename = case.sources.items[0].filename;
const exe = b.addExecutableFromWriteFileStep("test", write_src, basename);
exe.setBuildMode(mode);
if (case.link_libc) {
exe.linkSystemLibrary("c");
}
const run = exe.run();
run.addArgs(case.cli_args);
run.expectStdErrEqual("");
run.expectStdOutEqual(case.expected_output);
self.step.dependOn(&run.step);
}
},
Special.RuntimeSafety => {
const annotated_case_name = fmt.allocPrint(self.b.allocator, "safety {s}", .{case.name}) catch unreachable;
if (self.test_filter) |filter| {
if (mem.indexOf(u8, annotated_case_name, filter) == null) return;
}
const basename = case.sources.items[0].filename;
const exe = b.addExecutableFromWriteFileStep("test", write_src, basename);
if (case.link_libc) {
exe.linkSystemLibrary("c");
}
const run = exe.run();
run.addArgs(case.cli_args);
run.stderr_action = .ignore;
run.stdout_action = .ignore;
run.expected_exit_code = 126;
self.step.dependOn(&run.step);
},
}
}
};
|
