buffer status output - fixes #532

cmd/dep/integration_test.go

@@ -116,6 +116,9 @@ func testIntegration(name, wd string, externalProc bool, run test.RunFunc) func(
 		// Check error raised in final command
 		testCase.CompareError(err, testProj.GetStderr())
 
+		// Check output
+		testCase.CompareOutput(testProj.GetStdout())
+
 		// Check final manifest and lock
 		testCase.CompareFile(dep.ManifestName, testProj.ProjPath(dep.ManifestName))
 		testCase.CompareFile(dep.LockName, testProj.ProjPath(dep.LockName))

cmd/dep/status.go

@@ -10,7 +10,6 @@ import (
 	"flag"
 	"fmt"
 	"io"
-	"log"
 	"sort"
 	"text/tabwriter"
 
@@ -194,41 +193,33 @@ func (cmd *statusCommand) Run(ctx *dep.Ctx, loggers *Loggers, args []string) err
 	sm.UseDefaultSignalHandling()
 	defer sm.Release()
 
+	var buf bytes.Buffer
 	var out outputter
 	switch {
 	case cmd.detailed:
 		return errors.Errorf("not implemented")
 	case cmd.json:
 		out = &jsonOutput{
-			w: &logWriter{Logger: loggers.Out},
+			w: &buf,
 		}
 	case cmd.dot:
 		out = &dotOutput{
 			p: p,
 			o: cmd.output,
-			w: &logWriter{Logger: loggers.Out},
+			w: &buf,
 		}
 	default:
 		out = &tableOutput{
-			w: tabwriter.NewWriter(&logWriter{Logger: loggers.Out}, 0, 4, 2, ' ', 0),
+			w: tabwriter.NewWriter(&buf, 0, 4, 2, ' ', 0),
 		}
 	}
-	return runStatusAll(loggers, out, p, sm)
-}
-
-// A logWriter adapts a log.Logger to the io.Writer interface.
-type logWriter struct {
-	*log.Logger
-}
 
-func (l *logWriter) Write(b []byte) (n int, err error) {
-	str := string(b)
-	if len(str) == 0 {
-		return 0, nil
+	if err := runStatusAll(loggers, out, p, sm); err != nil {
+		return err
 	}
 
-	l.Print(str)
-	return len(b), err
+	loggers.Out.Print(buf.String())
+	return nil
 }
 
 // BasicStatus contains all the information reported about a single dependency

cmd/dep/testdata/harness_tests/README.md

@@ -12,6 +12,7 @@ The directory structure is as follows:
                 subcategory1/
                     case1/
                         testcase.json
+                        stdout.txt
                         initial/
                             file1.go
                             Gopkg.toml
@@ -36,7 +37,8 @@ will be included automatically.
 The json file needs to be accompanied by `initial` and `final` directories. The
 `initial` is copied verbatim into the test project before the `dep` commands are
 run, are the `manifest` and `lock` files in `final`, if present, are used to
-compare against the test project results after the commands.
+compare against the test project results after the commands. The `stdout.txt` file
+is optional, and if present will be compared with command output.
 
 The `testcase.json` file has the following format:
 
@@ -74,9 +76,10 @@ The test procedure is as follows:
 5. Fetch the repos and versions in `vendor-initial` to the project's `vendor` directory
 6. Run `commands` on the project, in declaration order
 7. Ensure that, if any errors are raised, it is only by the final command and their string output matches `error-expected`
-8. Check the resulting files against those in the `final` input directory
-9. Check the `vendor` directory for the projects listed under `vendor-final`
-10. Check that there were no changes to `src` listings
-11. Clean up
+8. Ensure that, if a stdout.txt file is present, the command's output matches (excluding trailing whitespace).
+9. Check the resulting files against those in the `final` input directory
+10. Check the `vendor` directory for the projects listed under `vendor-final`
+11. Check that there were no changes to `src` listings
+12. Clean up
 
 Note that for the remote fetches, only git repos are currently supported.

cmd/dep/testdata/harness_tests/status/case1/dot/stdout.txt

@@ -0,0 +1,9 @@
+digraph {
+	node [shape=box];
+	388407825 [label="github.com/golang/notexist"];
+	2304687900 [label="github.com/sdboyer/deptest\nv0.8.0"];
+	2659405890 [label="github.com/sdboyer/deptestdos\nv2.0.0"];
+	388407825 -> 2304687900;
+	388407825 -> 2659405890;
+	2659405890 -> 2304687900;
+}

cmd/dep/testdata/harness_tests/status/case1/dot/testcase.json

@@ -0,0 +1,10 @@
+{
+  "commands": [
+    ["ensure"],
+    ["status","-dot"]
+  ],
+  "vendor-final": [
+    "github.com/sdboyer/deptest",
+    "github.com/sdboyer/deptestdos"
+  ]
+}

cmd/dep/testdata/harness_tests/status/case1/json/final/Gopkg.toml

@@ -0,0 +1,3 @@
+[[dependencies]]
+  name = "github.com/sdboyer/deptest"
+  version = "^0.8.0"

cmd/dep/testdata/harness_tests/status/case1/json/initial/Gopkg.toml

@@ -0,0 +1,3 @@
+[[dependencies]]
+  name = "github.com/sdboyer/deptest"
+  version = "^0.8.0"

cmd/dep/testdata/harness_tests/status/case1/json/initial/main.go

@@ -0,0 +1,18 @@
+// Copyright 2016 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 main
+
+import (
+	"github.com/sdboyer/deptest"
+	"github.com/sdboyer/deptestdos"
+)
+
+func main() {
+	err := nil
+	if err != nil {
+		deptest.Map["yo yo!"]
+	}
+	deptestdos.diMeLo("whatev")
+}

cmd/dep/testdata/harness_tests/status/case1/json/stdout.txt

@@ -0,0 +1 @@
+[{"ProjectRoot":"github.com/sdboyer/deptest","Children":null,"Constraint":{},"Version":{},"Revision":"ff2948a2ac8f538c4ecd55962e919d1e13e74baf","Latest":"3f4c3bea144e112a69bbe5d8d01c1b09a544253f","PackageCount":1},{"ProjectRoot":"github.com/sdboyer/deptestdos","Children":null,"Constraint":{},"Version":{},"Revision":"5c607206be5decd28e6263ffffdcee067266015e","Latest":"5c607206be5decd28e6263ffffdcee067266015e","PackageCount":1}]

cmd/dep/testdata/harness_tests/status/case1/json/testcase.json

@@ -0,0 +1,10 @@
+{
+  "commands": [
+    ["ensure"],
+    ["status","-json"]
+  ],
+  "vendor-final": [
+    "github.com/sdboyer/deptest",
+    "github.com/sdboyer/deptestdos"
+  ]
+}

cmd/dep/testdata/harness_tests/status/case1/table/final/Gopkg.toml

@@ -0,0 +1,3 @@
+[[dependencies]]
+  name = "github.com/sdboyer/deptest"
+  version = "^0.8.0"

cmd/dep/testdata/harness_tests/status/case1/table/initial/Gopkg.toml

@@ -0,0 +1,3 @@
+[[dependencies]]
+  name = "github.com/sdboyer/deptest"
+  version = "^0.8.0"

cmd/dep/testdata/harness_tests/status/case1/table/initial/main.go

@@ -0,0 +1,18 @@
+// Copyright 2016 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 main
+
+import (
+	"github.com/sdboyer/deptest"
+	"github.com/sdboyer/deptestdos"
+)
+
+func main() {
+	err := nil
+	if err != nil {
+		deptest.Map["yo yo!"]
+	}
+	deptestdos.diMeLo("whatev")
+}

cmd/dep/testdata/harness_tests/status/case1/table/stdout.txt

@@ -0,0 +1,3 @@
+PROJECT                        CONSTRAINT       VERSION  REVISION  LATEST   PKGS USED
+github.com/sdboyer/deptest     >=0.8.0, <1.0.0  v0.8.0   ff2948a   3f4c3be  1
+github.com/sdboyer/deptestdos  *                v2.0.0   5c60720   5c60720  1   

internal/test/integration_testcase.go

@@ -14,6 +14,7 @@ import (
 	"regexp"
 	"strings"
 	"testing"
+	"unicode"
 )
 
 var (
@@ -128,6 +129,34 @@ func (tc *IntegrationTestCase) CompareFile(goldenPath, working string) {
 	}
 }
 
+// CompareError compares expected and actual stdout output
+func (tc *IntegrationTestCase) CompareOutput(stdout string) {
+	expected, err := ioutil.ReadFile(filepath.Join(tc.rootPath, "stdout.txt"))
+	if err != nil {
+		if os.IsNotExist(err) {
+			// Nothing to verify
+			return
+		}
+		panic(err)
+	}
+
+	expStr := normalizeLines(string(expected))
+	stdout = normalizeLines(stdout)
+
+	if expStr != stdout {
+		tc.t.Errorf("expected: %q but got: %q", expStr, stdout)
+	}
+}
+
+// normalizeLines returns a version with trailing whitespace stripped from each line.
+func normalizeLines(s string) string {
+	lines := strings.Split(s, "\n")
+	for i := range lines {
+		lines[i] = strings.TrimRightFunc(lines[i], unicode.IsSpace)
+	}
+	return strings.Join(lines, "\n")
+}
+
 // CompareError compares exected and actual error
 func (tc *IntegrationTestCase) CompareError(err error, stderr string) {
 	wantExists, want := tc.ErrorExpected != "", tc.ErrorExpected

internal/test/integration_testproj.go

@@ -143,6 +143,11 @@ func (p *IntegrationTestProject) RunGit(dir string, args ...string) {
 	}
 }
 
+// GetStdout gets the Stdout output from test run
+func (p *IntegrationTestProject) GetStdout() string {
+	return p.stdout.String()
+}
+
 // GetStderr gets the Stderr output from test run
 func (p *IntegrationTestProject) GetStderr() string {
 	return p.stderr.String()