test: change several tests to not print

This will make these tests more meaningful for gccgo, which
runs tests in parallel and has no equivalent to golden.out.

Remove ken/simpprint.go since it duplicates helloworld.go.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5536058

1 files changed, 21 insertions, 7 deletions

diff --git a/test/ken/cplx4.go b/test/ken/cplx4.go
index 8524e47aec..738afcd2ca 100644
--- a/test/ken/cplx4.go
+++ b/test/ken/cplx4.go
@@ -15,30 +15,44 @@ const (
 	C1 = R + I // ADD(5,6)
 )
 
-func doprint(c complex128) { fmt.Printf("c = %f\n", c) }
+func want(s, w string) {
+	if s != w {
+		panic(s + " != " + w)
+	}
+}
+
+func doprint(c complex128, w string) {
+	s := fmt.Sprintf("%f", c)
+	want(s, w)
+}
 
 func main() {
 
 	// constants
-	fmt.Printf("c = %f\n", -C1)
-	doprint(C1)
+	s := fmt.Sprintf("%f", -C1)
+	want(s, "(-5.000000-6.000000i)")
+	doprint(C1, "(5.000000+6.000000i)")
 
 	// variables
 	c1 := C1
-	fmt.Printf("c = %f\n", c1)
-	doprint(c1)
+	s = fmt.Sprintf("%f", c1)
+	want(s, "(5.000000+6.000000i)")
+	doprint(c1, "(5.000000+6.000000i)")
 
 	// 128
 	c2 := complex128(C1)
-	fmt.Printf("c = %G\n", c2)
+	s = fmt.Sprintf("%G", c2)
+	want(s, "(5+6i)")
 
 	// real, imag, complex
 	c3 := complex(real(c2)+3, imag(c2)-5) + c2
-	fmt.Printf("c = %G\n", c3)
+	s = fmt.Sprintf("%G", c3)
+	want(s, "(13+7i)")
 
 	// compiler used to crash on nested divide
 	c4 := complex(real(c3/2), imag(c3/2))
 	if c4 != c3/2 {
 		fmt.Printf("BUG: c3 = %G != c4 = %G\n", c3, c4)
+		panic(0)
 	}
 }