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build: Test the c.zig file too

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* Add some more tests for the sqrt/sqrtf implementations.
  The idea is to cross-check the software impl with the HW one whenever
  possible.
* Fix a broken test, oops.
This commit is contained in:
LemonBoy 2021-04-12 17:27:55 +02:00
parent 1fada37466
commit ebf97627fd
2 changed files with 36 additions and 21 deletions
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1
build.zig
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@ -259,6 +259,7 @@ pub fn build(b: *Builder) !void {
test_step.dependOn(tests.addPkgTests(b, test_filter, "lib/std/std.zig", "std", "Run the standard library tests", modes, false, skip_non_native, skip_libc, is_wine_enabled, is_qemu_enabled, is_wasmtime_enabled, glibc_multi_dir));
test_step.dependOn(tests.addPkgTests(b, test_filter, "lib/std/special/compiler_rt.zig", "compiler-rt", "Run the compiler_rt tests", modes, true, skip_non_native, true, is_wine_enabled, is_qemu_enabled, is_wasmtime_enabled, glibc_multi_dir));
test_step.dependOn(tests.addPkgTests(b, test_filter, "lib/std/special/c.zig", "minilibc", "Run the mini libc tests", modes, true, skip_non_native, true, is_wine_enabled, is_qemu_enabled, is_wasmtime_enabled, glibc_multi_dir));
test_step.dependOn(tests.addCompareOutputTests(b, test_filter, modes));
test_step.dependOn(tests.addStandaloneTests(b, test_filter, modes));

56
lib/std/special/c.zig
View File

@ -85,7 +85,7 @@ test "strncpy" {
var s1: [9:0]u8 = undefined;
s1[0] = 0;
_ = strncpy(&s1, "foobarbaz", 9);
_ = strncpy(&s1, "foobarbaz", @sizeOf(@TypeOf(s1)));
std.testing.expectEqualSlices(u8, "foobarbaz", std.mem.spanZ(&s1));
}
@ -993,17 +993,24 @@ export fn sqrt(x: f64) f64 {
}
test "sqrt" {
const epsilon = 0.000001;
const V = [_]f64{
0.0,
4.089288054930154,
7.538757127071935,
8.97780793672623,
5.304443821913729,
5.682408965311888,
0.5846878579110049,
3.650338664297043,
0.3178091951800732,
7.1505232436382835,
3.6589165881946464,
};
std.testing.expect(sqrt(0.0) == 0.0);
std.testing.expect(std.math.approxEqAbs(f64, sqrt(2.0), 1.414214, epsilon));
std.testing.expect(std.math.approxEqAbs(f64, sqrt(3.6), 1.897367, epsilon));
std.testing.expect(sqrt(4.0) == 2.0);
std.testing.expect(std.math.approxEqAbs(f64, sqrt(7.539840), 2.745877, epsilon));
std.testing.expect(std.math.approxEqAbs(f64, sqrt(19.230934), 4.385309, epsilon));
std.testing.expect(sqrt(64.0) == 8.0);
std.testing.expect(std.math.approxEqAbs(f64, sqrt(64.1), 8.006248, epsilon));
std.testing.expect(std.math.approxEqAbs(f64, sqrt(8942.230469), 94.563367, epsilon));
// Note that @sqrt will either generate the sqrt opcode (if supported by the
// target ISA) or a call to `sqrtf` otherwise.
for (V) |val|
std.testing.expectEqual(@sqrt(val), sqrt(val));
}
test "sqrt special" {
@ -1091,17 +1098,24 @@ export fn sqrtf(x: f32) f32 {
}
test "sqrtf" {
const epsilon = 0.000001;
const V = [_]f32{
0.0,
4.089288054930154,
7.538757127071935,
8.97780793672623,
5.304443821913729,
5.682408965311888,
0.5846878579110049,
3.650338664297043,
0.3178091951800732,
7.1505232436382835,
3.6589165881946464,
};
std.testing.expect(sqrtf(0.0) == 0.0);
std.testing.expect(std.math.approxEqAbs(f32, sqrtf(2.0), 1.414214, epsilon));
std.testing.expect(std.math.approxEqAbs(f32, sqrtf(3.6), 1.897367, epsilon));
std.testing.expect(sqrtf(4.0) == 2.0);
std.testing.expect(std.math.approxEqAbs(f32, sqrtf(7.539840), 2.745877, epsilon));
std.testing.expect(std.math.approxEqAbs(f32, sqrtf(19.230934), 4.385309, epsilon));
std.testing.expect(sqrtf(64.0) == 8.0);
std.testing.expect(std.math.approxEqAbs(f32, sqrtf(64.1), 8.006248, epsilon));
std.testing.expect(std.math.approxEqAbs(f32, sqrtf(8942.230469), 94.563370, epsilon));
// Note that @sqrt will either generate the sqrt opcode (if supported by the
// target ISA) or a call to `sqrtf` otherwise.
for (V) |val|
std.testing.expectEqual(@sqrt(val), sqrtf(val));
}
test "sqrtf special" {