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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
commit | 43a123c1ae6613b3efeed291fa552ecd909d3acf (patch) | |
tree | fd92518b7024bc74031f78a1cf9e454b65e73665 /src/strconv/atoc_test.go | |
parent | Initial commit. (diff) | |
download | golang-1.20-upstream.tar.xz golang-1.20-upstream.zip |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/strconv/atoc_test.go')
-rw-r--r-- | src/strconv/atoc_test.go | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/strconv/atoc_test.go b/src/strconv/atoc_test.go new file mode 100644 index 0000000..4c1aad0 --- /dev/null +++ b/src/strconv/atoc_test.go @@ -0,0 +1,229 @@ +// Copyright 2020 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package strconv_test + +import ( + "math" + "math/cmplx" + "reflect" + . "strconv" + "testing" +) + +var ( + infp0 = complex(math.Inf(+1), 0) + infm0 = complex(math.Inf(-1), 0) + inf0p = complex(0, math.Inf(+1)) + inf0m = complex(0, math.Inf(-1)) + + infpp = complex(math.Inf(+1), math.Inf(+1)) + infpm = complex(math.Inf(+1), math.Inf(-1)) + infmp = complex(math.Inf(-1), math.Inf(+1)) + infmm = complex(math.Inf(-1), math.Inf(-1)) +) + +type atocTest struct { + in string + out complex128 + err error +} + +func TestParseComplex(t *testing.T) { + tests := []atocTest{ + // Clearly invalid + {"", 0, ErrSyntax}, + {" ", 0, ErrSyntax}, + {"(", 0, ErrSyntax}, + {")", 0, ErrSyntax}, + {"i", 0, ErrSyntax}, + {"+i", 0, ErrSyntax}, + {"-i", 0, ErrSyntax}, + {"1I", 0, ErrSyntax}, + {"10 + 5i", 0, ErrSyntax}, + {"3+", 0, ErrSyntax}, + {"3+5", 0, ErrSyntax}, + {"3+5+5i", 0, ErrSyntax}, + + // Parentheses + {"()", 0, ErrSyntax}, + {"(i)", 0, ErrSyntax}, + {"(0)", 0, nil}, + {"(1i)", 1i, nil}, + {"(3.0+5.5i)", 3.0 + 5.5i, nil}, + {"(1)+1i", 0, ErrSyntax}, + {"(3.0+5.5i", 0, ErrSyntax}, + {"3.0+5.5i)", 0, ErrSyntax}, + + // NaNs + {"NaN", complex(math.NaN(), 0), nil}, + {"NANi", complex(0, math.NaN()), nil}, + {"nan+nAni", complex(math.NaN(), math.NaN()), nil}, + {"+NaN", 0, ErrSyntax}, + {"-NaN", 0, ErrSyntax}, + {"NaN-NaNi", 0, ErrSyntax}, + + // Infs + {"Inf", infp0, nil}, + {"+inf", infp0, nil}, + {"-inf", infm0, nil}, + {"Infinity", infp0, nil}, + {"+INFINITY", infp0, nil}, + {"-infinity", infm0, nil}, + {"+infi", inf0p, nil}, + {"0-infinityi", inf0m, nil}, + {"Inf+Infi", infpp, nil}, + {"+Inf-Infi", infpm, nil}, + {"-Infinity+Infi", infmp, nil}, + {"inf-inf", 0, ErrSyntax}, + + // Zeros + {"0", 0, nil}, + {"0i", 0, nil}, + {"-0.0i", 0, nil}, + {"0+0.0i", 0, nil}, + {"0e+0i", 0, nil}, + {"0e-0+0i", 0, nil}, + {"-0.0-0.0i", 0, nil}, + {"0e+012345", 0, nil}, + {"0x0p+012345i", 0, nil}, + {"0x0.00p-012345i", 0, nil}, + {"+0e-0+0e-0i", 0, nil}, + {"0e+0+0e+0i", 0, nil}, + {"-0e+0-0e+0i", 0, nil}, + + // Regular non-zeroes + {"0.1", 0.1, nil}, + {"0.1i", 0 + 0.1i, nil}, + {"0.123", 0.123, nil}, + {"0.123i", 0 + 0.123i, nil}, + {"0.123+0.123i", 0.123 + 0.123i, nil}, + {"99", 99, nil}, + {"+99", 99, nil}, + {"-99", -99, nil}, + {"+1i", 1i, nil}, + {"-1i", -1i, nil}, + {"+3+1i", 3 + 1i, nil}, + {"30+3i", 30 + 3i, nil}, + {"+3e+3-3e+3i", 3e+3 - 3e+3i, nil}, + {"+3e+3+3e+3i", 3e+3 + 3e+3i, nil}, + {"+3e+3+3e+3i+", 0, ErrSyntax}, + + // Separators + {"0.1", 0.1, nil}, + {"0.1i", 0 + 0.1i, nil}, + {"0.1_2_3", 0.123, nil}, + {"+0x_3p3i", 0x3p3i, nil}, + {"0_0+0x_0p0i", 0, nil}, + {"0x_10.3p-8+0x3p3i", 0x10.3p-8 + 0x3p3i, nil}, + {"+0x_1_0.3p-8+0x_3_0p3i", 0x10.3p-8 + 0x30p3i, nil}, + {"0x1_0.3p+8-0x_3p3i", 0x10.3p+8 - 0x3p3i, nil}, + + // Hexadecimals + {"0x10.3p-8+0x3p3i", 0x10.3p-8 + 0x3p3i, nil}, + {"+0x10.3p-8+0x3p3i", 0x10.3p-8 + 0x3p3i, nil}, + {"0x10.3p+8-0x3p3i", 0x10.3p+8 - 0x3p3i, nil}, + {"0x1p0", 1, nil}, + {"0x1p1", 2, nil}, + {"0x1p-1", 0.5, nil}, + {"0x1ep-1", 15, nil}, + {"-0x1ep-1", -15, nil}, + {"-0x2p3", -16, nil}, + {"0x1e2", 0, ErrSyntax}, + {"1p2", 0, ErrSyntax}, + {"0x1e2i", 0, ErrSyntax}, + + // ErrRange + // next float64 - too large + {"+0x1p1024", infp0, ErrRange}, + {"-0x1p1024", infm0, ErrRange}, + {"+0x1p1024i", inf0p, ErrRange}, + {"-0x1p1024i", inf0m, ErrRange}, + {"+0x1p1024+0x1p1024i", infpp, ErrRange}, + {"+0x1p1024-0x1p1024i", infpm, ErrRange}, + {"-0x1p1024+0x1p1024i", infmp, ErrRange}, + {"-0x1p1024-0x1p1024i", infmm, ErrRange}, + // the border is ...158079 + // borderline - okay + {"+0x1.fffffffffffff7fffp1023+0x1.fffffffffffff7fffp1023i", 1.7976931348623157e+308 + 1.7976931348623157e+308i, nil}, + {"+0x1.fffffffffffff7fffp1023-0x1.fffffffffffff7fffp1023i", 1.7976931348623157e+308 - 1.7976931348623157e+308i, nil}, + {"-0x1.fffffffffffff7fffp1023+0x1.fffffffffffff7fffp1023i", -1.7976931348623157e+308 + 1.7976931348623157e+308i, nil}, + {"-0x1.fffffffffffff7fffp1023-0x1.fffffffffffff7fffp1023i", -1.7976931348623157e+308 - 1.7976931348623157e+308i, nil}, + // borderline - too large + {"+0x1.fffffffffffff8p1023", infp0, ErrRange}, + {"-0x1fffffffffffff.8p+971", infm0, ErrRange}, + {"+0x1.fffffffffffff8p1023i", inf0p, ErrRange}, + {"-0x1fffffffffffff.8p+971i", inf0m, ErrRange}, + {"+0x1.fffffffffffff8p1023+0x1.fffffffffffff8p1023i", infpp, ErrRange}, + {"+0x1.fffffffffffff8p1023-0x1.fffffffffffff8p1023i", infpm, ErrRange}, + {"-0x1fffffffffffff.8p+971+0x1fffffffffffff.8p+971i", infmp, ErrRange}, + {"-0x1fffffffffffff8p+967-0x1fffffffffffff8p+967i", infmm, ErrRange}, + // a little too large + {"1e308+1e308i", 1e+308 + 1e+308i, nil}, + {"2e308+2e308i", infpp, ErrRange}, + {"1e309+1e309i", infpp, ErrRange}, + {"0x1p1025+0x1p1025i", infpp, ErrRange}, + {"2e308", infp0, ErrRange}, + {"1e309", infp0, ErrRange}, + {"0x1p1025", infp0, ErrRange}, + {"2e308i", inf0p, ErrRange}, + {"1e309i", inf0p, ErrRange}, + {"0x1p1025i", inf0p, ErrRange}, + // way too large + {"+1e310+1e310i", infpp, ErrRange}, + {"+1e310-1e310i", infpm, ErrRange}, + {"-1e310+1e310i", infmp, ErrRange}, + {"-1e310-1e310i", infmm, ErrRange}, + // under/overflow exponent + {"1e-4294967296", 0, nil}, + {"1e-4294967296i", 0, nil}, + {"1e-4294967296+1i", 1i, nil}, + {"1+1e-4294967296i", 1, nil}, + {"1e-4294967296+1e-4294967296i", 0, nil}, + {"1e+4294967296", infp0, ErrRange}, + {"1e+4294967296i", inf0p, ErrRange}, + {"1e+4294967296+1e+4294967296i", infpp, ErrRange}, + {"1e+4294967296-1e+4294967296i", infpm, ErrRange}, + } + for i := range tests { + test := &tests[i] + if test.err != nil { + test.err = &NumError{Func: "ParseComplex", Num: test.in, Err: test.err} + } + got, err := ParseComplex(test.in, 128) + if !reflect.DeepEqual(err, test.err) { + t.Fatalf("ParseComplex(%q, 128) = %v, %v; want %v, %v", test.in, got, err, test.out, test.err) + } + if !(cmplx.IsNaN(test.out) && cmplx.IsNaN(got)) && got != test.out { + t.Fatalf("ParseComplex(%q, 128) = %v, %v; want %v, %v", test.in, got, err, test.out, test.err) + } + + if complex128(complex64(test.out)) == test.out { + got, err := ParseComplex(test.in, 64) + if !reflect.DeepEqual(err, test.err) { + t.Fatalf("ParseComplex(%q, 64) = %v, %v; want %v, %v", test.in, got, err, test.out, test.err) + } + got64 := complex64(got) + if complex128(got64) != test.out { + t.Fatalf("ParseComplex(%q, 64) = %v, %v; want %v, %v", test.in, got, err, test.out, test.err) + } + } + } +} + +// Issue 42297: allow ParseComplex(s, not_32_or_64) for legacy reasons +func TestParseComplexIncorrectBitSize(t *testing.T) { + const s = "1.5e308+1.0e307i" + const want = 1.5e308 + 1.0e307i + + for _, bitSize := range []int{0, 10, 100, 256} { + c, err := ParseComplex(s, bitSize) + if err != nil { + t.Fatalf("ParseComplex(%q, %d) gave error %s", s, bitSize, err) + } + if c != want { + t.Fatalf("ParseComplex(%q, %d) = %g (expected %g)", s, bitSize, c, want) + } + } +} |