math/big: fix %s verbs in Float tests error messages

Fatalf calls in two Float tests use the %s verb with Floats values,
which is not allowed and results in failure messages that look like
this:

    float_test.go:1385: i = 0, prec = 1, ToZero:
                     %!s(*big.Float=1) [0]
                /    %!s(*big.Float=1) [0]
                =    %!s(*big.Float=0.0625)
                want %!s(*big.Float=1)

Switch to %v.

Change-Id: Ifdc80bf19c91ca1b190f6551a6d0a51b42ed5919
Reviewed-on: https://go-review.googlesource.com/87199
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/src/math/big/float_test.go b/src/math/big/float_test.go
index 5fd49bb89462e56f67d1d8ba2d7dac0c3534b6fa..08da33779e810a0371a887b3b9e9ba80a27b5d96 100644 (file)
--- a/src/math/big/float_test.go
+++ b/src/math/big/float_test.go
@@ -1372,7 +1372,7 @@ func TestFloatMul(t *testing.T) {
                                        got.Mul(x, y)
                                        want := zbits.round(prec, mode)
                                        if got.Cmp(want) != 0 {
-                                               t.Errorf("i = %d, prec = %d, %s:\n\t     %s %v\n\t*    %s %v\n\t=    %s\n\twant %s",
+                                               t.Errorf("i = %d, prec = %d, %s:\n\t     %v %v\n\t*    %v %v\n\t=    %v\n\twant %v",
                                                        i, prec, mode, x, xbits, y, ybits, got, want)
                                        }
 
@@ -1382,7 +1382,7 @@ func TestFloatMul(t *testing.T) {
                                        got.Quo(z, x)
                                        want = ybits.round(prec, mode)
                                        if got.Cmp(want) != 0 {
-                                               t.Errorf("i = %d, prec = %d, %s:\n\t     %s %v\n\t/    %s %v\n\t=    %s\n\twant %s",
+                                               t.Errorf("i = %d, prec = %d, %s:\n\t     %v %v\n\t/    %v %v\n\t=    %v\n\twant %v",
                                                        i, prec, mode, z, zbits, x, xbits, got, want)
                                        }
                                }
@@ -1465,13 +1465,13 @@ func TestIssue6866(t *testing.T) {
                z2.Sub(two, p)
 
                if z1.Cmp(z2) != 0 {
-                       t.Fatalf("prec %d: got z1 = %s != z2 = %s; want z1 == z2\n", prec, z1, z2)
+                       t.Fatalf("prec %d: got z1 = %v != z2 = %v; want z1 == z2\n", prec, z1, z2)
                }
                if z1.Sign() != 0 {
-                       t.Errorf("prec %d: got z1 = %s; want 0", prec, z1)
+                       t.Errorf("prec %d: got z1 = %v; want 0", prec, z1)
                }
                if z2.Sign() != 0 {
-                       t.Errorf("prec %d: got z2 = %s; want 0", prec, z2)
+                       t.Errorf("prec %d: got z2 = %v; want 0", prec, z2)
                }
        }
 }