github.com/rakyll/go@v0.0.0-20170216000551-64c02460d703/src/cmd/compile/internal/gc/ssa_test.go (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package gc
     6  
     7  import (
     8  	"bytes"
     9  	"internal/testenv"
    10  	"os/exec"
    11  	"path/filepath"
    12  	"strings"
    13  	"testing"
    14  )
    15  
    16  // TODO: move all these tests elsewhere?
    17  // Perhaps teach test/run.go how to run them with a new action verb.
    18  func runTest(t *testing.T, filename string) {
    19  	t.Parallel()
    20  	doTest(t, filename, "run")
    21  }
    22  func buildTest(t *testing.T, filename string) {
    23  	t.Parallel()
    24  	doTest(t, filename, "build")
    25  }
    26  func doTest(t *testing.T, filename string, kind string) {
    27  	testenv.MustHaveGoBuild(t)
    28  	var stdout, stderr bytes.Buffer
    29  	cmd := exec.Command(testenv.GoToolPath(t), kind, filepath.Join("testdata", filename))
    30  	cmd.Stdout = &stdout
    31  	cmd.Stderr = &stderr
    32  	if err := cmd.Run(); err != nil {
    33  		t.Fatalf("Failed: %v:\nOut: %s\nStderr: %s\n", err, &stdout, &stderr)
    34  	}
    35  	if s := stdout.String(); s != "" {
    36  		t.Errorf("Stdout = %s\nWant empty", s)
    37  	}
    38  	if s := stderr.String(); strings.Contains(s, "SSA unimplemented") {
    39  		t.Errorf("Unimplemented message found in stderr:\n%s", s)
    40  	}
    41  }
    42  
    43  // TestShortCircuit tests OANDAND and OOROR expressions and short circuiting.
    44  func TestShortCircuit(t *testing.T) { runTest(t, "short.go") }
    45  
    46  // TestBreakContinue tests that continue and break statements do what they say.
    47  func TestBreakContinue(t *testing.T) { runTest(t, "break.go") }
    48  
    49  // TestTypeAssertion tests type assertions.
    50  func TestTypeAssertion(t *testing.T) { runTest(t, "assert.go") }
    51  
    52  // TestArithmetic tests that both backends have the same result for arithmetic expressions.
    53  func TestArithmetic(t *testing.T) { runTest(t, "arith.go") }
    54  
    55  // TestFP tests that both backends have the same result for floating point expressions.
    56  func TestFP(t *testing.T) { runTest(t, "fp.go") }
    57  
    58  // TestArithmeticBoundary tests boundary results for arithmetic operations.
    59  func TestArithmeticBoundary(t *testing.T) { runTest(t, "arithBoundary.go") }
    60  
    61  // TestArithmeticConst tests results for arithmetic operations against constants.
    62  func TestArithmeticConst(t *testing.T) { runTest(t, "arithConst.go") }
    63  
    64  func TestChan(t *testing.T) { runTest(t, "chan.go") }
    65  
    66  func TestCompound(t *testing.T) { runTest(t, "compound.go") }
    67  
    68  func TestCtl(t *testing.T) { runTest(t, "ctl.go") }
    69  
    70  func TestLoadStore(t *testing.T) { runTest(t, "loadstore.go") }
    71  
    72  func TestMap(t *testing.T) { runTest(t, "map.go") }
    73  
    74  func TestRegalloc(t *testing.T) { runTest(t, "regalloc.go") }
    75  
    76  func TestString(t *testing.T) { runTest(t, "string.go") }
    77  
    78  func TestDeferNoReturn(t *testing.T) { buildTest(t, "deferNoReturn.go") }
    79  
    80  // TestClosure tests closure related behavior.
    81  func TestClosure(t *testing.T) { runTest(t, "closure.go") }
    82  
    83  func TestArray(t *testing.T) { runTest(t, "array.go") }
    84  
    85  func TestAppend(t *testing.T) { runTest(t, "append.go") }
    86  
    87  func TestZero(t *testing.T) { runTest(t, "zero.go") }
    88  
    89  func TestAddressed(t *testing.T) { runTest(t, "addressed.go") }
    90  
    91  func TestCopy(t *testing.T) { runTest(t, "copy.go") }
    92  
    93  func TestUnsafe(t *testing.T) { runTest(t, "unsafe.go") }
    94  
    95  func TestPhi(t *testing.T) { runTest(t, "phi.go") }
    96  
    97  func TestSlice(t *testing.T) { runTest(t, "slice.go") }
    98  
    99  func TestNamedReturn(t *testing.T) { runTest(t, "namedReturn.go") }
   100  
   101  func TestDuplicateLoad(t *testing.T) { runTest(t, "dupLoad.go") }
   102  
   103  func TestSqrt(t *testing.T) { runTest(t, "sqrt_const.go") }