54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package strconv_test
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import (
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. "strconv"
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"testing"
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)
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func TestFormatComplex(t *testing.T) {
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tests := []struct {
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c complex128
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fmt byte
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prec int
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bitSize int
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out string
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}{
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// a variety of signs
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{1 + 2i, 'g', -1, 128, "(1+2i)"},
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{3 - 4i, 'g', -1, 128, "(3-4i)"},
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{-5 + 6i, 'g', -1, 128, "(-5+6i)"},
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{-7 - 8i, 'g', -1, 128, "(-7-8i)"},
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// test that fmt and prec are working
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{3.14159 + 0.00123i, 'e', 3, 128, "(3.142e+00+1.230e-03i)"},
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{3.14159 + 0.00123i, 'f', 3, 128, "(3.142+0.001i)"},
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{3.14159 + 0.00123i, 'g', 3, 128, "(3.14+0.00123i)"},
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// ensure bitSize rounding is working
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{1.2345678901234567 + 9.876543210987654i, 'f', -1, 128, "(1.2345678901234567+9.876543210987654i)"},
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{1.2345678901234567 + 9.876543210987654i, 'f', -1, 64, "(1.2345679+9.876543i)"},
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// other cases are handled by FormatFloat tests
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}
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for _, test := range tests {
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out := FormatComplex(test.c, test.fmt, test.prec, test.bitSize)
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if out != test.out {
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t.Fatalf("FormatComplex(%v, %q, %d, %d) = %q; want %q",
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test.c, test.fmt, test.prec, test.bitSize, out, test.out)
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}
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}
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}
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func TestFormatComplexInvalidBitSize(t *testing.T) {
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defer func() {
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if r := recover(); r == nil {
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t.Fatalf("expected panic due to invalid bitSize")
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}
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}()
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_ = FormatComplex(1+2i, 'g', -1, 100)
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}
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