From 454a7fbb95f91e2b48adee781b0b02496988da92 Mon Sep 17 00:00:00 2001
From: Noah Dietz <noahdietz@users.noreply.github.com>
Date: Wed, 7 Nov 2018 06:05:26 -0800
Subject: add float32 & float64 slice support (#192)

---
 float64_slice_test.go | 165 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 165 insertions(+)
 create mode 100644 float64_slice_test.go

(limited to 'float64_slice_test.go')

diff --git a/float64_slice_test.go b/float64_slice_test.go
new file mode 100644
index 0000000..fe9ede4
--- /dev/null
+++ b/float64_slice_test.go
@@ -0,0 +1,165 @@
+// Copyright 2009 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 pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func setUpF64SFlagSet(f64sp *[]float64) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.Float64SliceVar(f64sp, "f64s", []float64{}, "Command separated list!")
+	return f
+}
+
+func setUpF64SFlagSetWithDefault(f64sp *[]float64) *FlagSet {
+	f := NewFlagSet("test", ContinueOnError)
+	f.Float64SliceVar(f64sp, "f64s", []float64{0.0, 1.0}, "Command separated list!")
+	return f
+}
+
+func TestEmptyF64S(t *testing.T) {
+	var f64s []float64
+	f := setUpF64SFlagSet(&f64s)
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+
+	getF64S, err := f.GetFloat64Slice("f64s")
+	if err != nil {
+		t.Fatal("got an error from GetFloat64Slice():", err)
+	}
+	if len(getF64S) != 0 {
+		t.Fatalf("got f64s %v with len=%d but expected length=0", getF64S, len(getF64S))
+	}
+}
+
+func TestF64S(t *testing.T) {
+	var f64s []float64
+	f := setUpF64SFlagSet(&f64s)
+
+	vals := []string{"1.0", "2.0", "4.0", "3.0"}
+	arg := fmt.Sprintf("--f64s=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range f64s {
+		d, err := strconv.ParseFloat(vals[i], 64)
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected f64s[%d] to be %s but got: %f", i, vals[i], v)
+		}
+	}
+	getF64S, err := f.GetFloat64Slice("f64s")
+	if err != nil {
+		t.Fatalf("got error: %v", err)
+	}
+	for i, v := range getF64S {
+		d, err := strconv.ParseFloat(vals[i], 64)
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected f64s[%d] to be %s but got: %f from GetFloat64Slice", i, vals[i], v)
+		}
+	}
+}
+
+func TestF64SDefault(t *testing.T) {
+	var f64s []float64
+	f := setUpF64SFlagSetWithDefault(&f64s)
+
+	vals := []string{"0.0", "1.0"}
+
+	err := f.Parse([]string{})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range f64s {
+		d, err := strconv.ParseFloat(vals[i], 64)
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected f64s[%d] to be %f but got: %f", i, d, v)
+		}
+	}
+
+	getF64S, err := f.GetFloat64Slice("f64s")
+	if err != nil {
+		t.Fatal("got an error from GetFloat64Slice():", err)
+	}
+	for i, v := range getF64S {
+		d, err := strconv.ParseFloat(vals[i], 64)
+		if err != nil {
+			t.Fatal("got an error from GetFloat64Slice():", err)
+		}
+		if d != v {
+			t.Fatalf("expected f64s[%d] to be %f from GetFloat64Slice but got: %f", i, d, v)
+		}
+	}
+}
+
+func TestF64SWithDefault(t *testing.T) {
+	var f64s []float64
+	f := setUpF64SFlagSetWithDefault(&f64s)
+
+	vals := []string{"1.0", "2.0"}
+	arg := fmt.Sprintf("--f64s=%s", strings.Join(vals, ","))
+	err := f.Parse([]string{arg})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range f64s {
+		d, err := strconv.ParseFloat(vals[i], 64)
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected f64s[%d] to be %f but got: %f", i, d, v)
+		}
+	}
+
+	getF64S, err := f.GetFloat64Slice("f64s")
+	if err != nil {
+		t.Fatal("got an error from GetFloat64Slice():", err)
+	}
+	for i, v := range getF64S {
+		d, err := strconv.ParseFloat(vals[i], 64)
+		if err != nil {
+			t.Fatalf("got error: %v", err)
+		}
+		if d != v {
+			t.Fatalf("expected f64s[%d] to be %f from GetFloat64Slice but got: %f", i, d, v)
+		}
+	}
+}
+
+func TestF64SCalledTwice(t *testing.T) {
+	var f64s []float64
+	f := setUpF64SFlagSet(&f64s)
+
+	in := []string{"1.0,2.0", "3.0"}
+	expected := []float64{1.0, 2.0, 3.0}
+	argfmt := "--f64s=%s"
+	arg1 := fmt.Sprintf(argfmt, in[0])
+	arg2 := fmt.Sprintf(argfmt, in[1])
+	err := f.Parse([]string{arg1, arg2})
+	if err != nil {
+		t.Fatal("expected no error; got", err)
+	}
+	for i, v := range f64s {
+		if expected[i] != v {
+			t.Fatalf("expected f64s[%d] to be %f but got: %f", i, expected[i], v)
+		}
+	}
+}
-- 
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