github.com/huiliang/nomad@v0.2.1-0.20151124023127-7a8b664699ff/client/driver/java_test.go (about)

     1  package driver
     2  
     3  import (
     4  	"os/exec"
     5  	"testing"
     6  	"time"
     7  
     8  	"github.com/hashicorp/nomad/client/config"
     9  	"github.com/hashicorp/nomad/nomad/structs"
    10  
    11  	ctestutils "github.com/hashicorp/nomad/client/testutil"
    12  )
    13  
    14  // javaLocated checks whether java is installed so we can run java stuff.
    15  func javaLocated() bool {
    16  	_, err := exec.Command("java", "-version").CombinedOutput()
    17  	return err == nil
    18  }
    19  
    20  // The fingerprinter test should always pass, even if Java is not installed.
    21  func TestJavaDriver_Fingerprint(t *testing.T) {
    22  	ctestutils.JavaCompatible(t)
    23  	d := NewJavaDriver(testDriverContext(""))
    24  	node := &structs.Node{
    25  		Attributes: make(map[string]string),
    26  	}
    27  	apply, err := d.Fingerprint(&config.Config{}, node)
    28  	if err != nil {
    29  		t.Fatalf("err: %v", err)
    30  	}
    31  	if apply != javaLocated() {
    32  		t.Fatalf("Fingerprinter should detect Java when it is installed")
    33  	}
    34  	if node.Attributes["driver.java"] != "1" {
    35  		t.Fatalf("missing driver")
    36  	}
    37  	for _, key := range []string{"driver.java.version", "driver.java.runtime", "driver.java.vm"} {
    38  		if node.Attributes[key] == "" {
    39  			t.Fatalf("missing driver key (%s)", key)
    40  		}
    41  	}
    42  }
    43  
    44  func TestJavaDriver_StartOpen_Wait(t *testing.T) {
    45  	if !javaLocated() {
    46  		t.Skip("Java not found; skipping")
    47  	}
    48  
    49  	ctestutils.JavaCompatible(t)
    50  	task := &structs.Task{
    51  		Name: "demo-app",
    52  		Config: map[string]interface{}{
    53  			"artifact_source": "https://dl.dropboxusercontent.com/u/47675/jar_thing/demoapp.jar",
    54  			"jvm_options":     []string{"-Xmx64m", "-Xms32m"},
    55  			"checksum":        "sha256:58d6e8130308d32e197c5108edd4f56ddf1417408f743097c2e662df0f0b17c8",
    56  		},
    57  		Resources: basicResources,
    58  	}
    59  
    60  	driverCtx := testDriverContext(task.Name)
    61  	ctx := testDriverExecContext(task, driverCtx)
    62  	defer ctx.AllocDir.Destroy()
    63  	d := NewJavaDriver(driverCtx)
    64  
    65  	handle, err := d.Start(ctx, task)
    66  	if err != nil {
    67  		t.Fatalf("err: %v", err)
    68  	}
    69  	if handle == nil {
    70  		t.Fatalf("missing handle")
    71  	}
    72  
    73  	// Attempt to open
    74  	handle2, err := d.Open(ctx, handle.ID())
    75  	if err != nil {
    76  		t.Fatalf("err: %v", err)
    77  	}
    78  	if handle2 == nil {
    79  		t.Fatalf("missing handle")
    80  	}
    81  
    82  	time.Sleep(2 * time.Second)
    83  	// need to kill long lived process
    84  	err = handle.Kill()
    85  	if err != nil {
    86  		t.Fatalf("Error: %s", err)
    87  	}
    88  }
    89  
    90  func TestJavaDriver_Start_Wait(t *testing.T) {
    91  	if !javaLocated() {
    92  		t.Skip("Java not found; skipping")
    93  	}
    94  
    95  	ctestutils.JavaCompatible(t)
    96  	task := &structs.Task{
    97  		Name: "demo-app",
    98  		Config: map[string]interface{}{
    99  			"artifact_source": "https://dl.dropboxusercontent.com/u/47675/jar_thing/demoapp.jar",
   100  			"checksum":        "sha256:58d6e8130308d32e197c5108edd4f56ddf1417408f743097c2e662df0f0b17c8",
   101  		},
   102  		Resources: basicResources,
   103  	}
   104  
   105  	driverCtx := testDriverContext(task.Name)
   106  	ctx := testDriverExecContext(task, driverCtx)
   107  	defer ctx.AllocDir.Destroy()
   108  	d := NewJavaDriver(driverCtx)
   109  
   110  	handle, err := d.Start(ctx, task)
   111  	if err != nil {
   112  		t.Fatalf("err: %v", err)
   113  	}
   114  	if handle == nil {
   115  		t.Fatalf("missing handle")
   116  	}
   117  
   118  	// Task should terminate quickly
   119  	select {
   120  	case res := <-handle.WaitCh():
   121  		if !res.Successful() {
   122  			t.Fatalf("err: %v", res)
   123  		}
   124  	case <-time.After(2 * time.Second):
   125  		// expect the timeout b/c it's a long lived process
   126  		break
   127  	}
   128  
   129  	// need to kill long lived process
   130  	err = handle.Kill()
   131  	if err != nil {
   132  		t.Fatalf("Error: %s", err)
   133  	}
   134  }
   135  
   136  func TestJavaDriver_Start_Kill_Wait(t *testing.T) {
   137  	if !javaLocated() {
   138  		t.Skip("Java not found; skipping")
   139  	}
   140  
   141  	ctestutils.JavaCompatible(t)
   142  	task := &structs.Task{
   143  		Name: "demo-app",
   144  		Config: map[string]interface{}{
   145  			"artifact_source": "https://dl.dropboxusercontent.com/u/47675/jar_thing/demoapp.jar",
   146  		},
   147  		Resources: basicResources,
   148  	}
   149  
   150  	driverCtx := testDriverContext(task.Name)
   151  	ctx := testDriverExecContext(task, driverCtx)
   152  	defer ctx.AllocDir.Destroy()
   153  	d := NewJavaDriver(driverCtx)
   154  
   155  	handle, err := d.Start(ctx, task)
   156  	if err != nil {
   157  		t.Fatalf("err: %v", err)
   158  	}
   159  	if handle == nil {
   160  		t.Fatalf("missing handle")
   161  	}
   162  
   163  	go func() {
   164  		time.Sleep(100 * time.Millisecond)
   165  		err := handle.Kill()
   166  		if err != nil {
   167  			t.Fatalf("err: %v", err)
   168  		}
   169  	}()
   170  
   171  	// Task should terminate quickly
   172  	select {
   173  	case res := <-handle.WaitCh():
   174  		if res.Successful() {
   175  			t.Fatal("should err")
   176  		}
   177  	case <-time.After(8 * time.Second):
   178  		t.Fatalf("timeout")
   179  	}
   180  
   181  	// need to kill long lived process
   182  	err = handle.Kill()
   183  	if err != nil {
   184  		t.Fatalf("Error: %s", err)
   185  	}
   186  }