github.com/posener/terraform@v0.11.0-beta1.0.20171103235147-645df36af025/helper/diff/resource_builder_test.go (about)

     1  package diff
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/hashicorp/terraform/config"
     7  	"github.com/hashicorp/terraform/terraform"
     8  )
     9  
    10  func TestResourceBuilder_attrSetComputed(t *testing.T) {
    11  	rb := &ResourceBuilder{
    12  		Attrs: map[string]AttrType{
    13  			"foo": AttrTypeCreate,
    14  		},
    15  		ComputedAttrs: []string{
    16  			"foo",
    17  		},
    18  	}
    19  
    20  	state := &terraform.InstanceState{}
    21  	c := testConfig(t, map[string]interface{}{
    22  		"foo": "bar",
    23  	}, nil)
    24  
    25  	diff, err := rb.Diff(state, c)
    26  	if err != nil {
    27  		t.Fatalf("err: %s", err)
    28  	}
    29  	if diff == nil {
    30  		t.Fatal("diff shold not be nil")
    31  	}
    32  
    33  	actual := testResourceDiffStr(diff)
    34  	expected := testRBAttrSetComputedDiff
    35  	if actual != expected {
    36  		t.Fatalf("bad: %s", actual)
    37  	}
    38  }
    39  
    40  func TestResourceBuilder_attrSetComputedComplex(t *testing.T) {
    41  	rb := &ResourceBuilder{
    42  		Attrs: map[string]AttrType{
    43  			"foo": AttrTypeCreate,
    44  		},
    45  		ComputedAttrs: []string{
    46  			"foo",
    47  		},
    48  	}
    49  
    50  	state := &terraform.InstanceState{
    51  		ID: "foo",
    52  		Attributes: map[string]string{
    53  			"foo.#": "0",
    54  		},
    55  	}
    56  
    57  	c := testConfig(t, map[string]interface{}{}, nil)
    58  
    59  	diff, err := rb.Diff(state, c)
    60  	if err != nil {
    61  		t.Fatalf("err: %s", err)
    62  	}
    63  	if diff != nil {
    64  		t.Fatalf("diff shold be nil: %#v", diff)
    65  	}
    66  }
    67  
    68  func TestResourceBuilder_replaceComputed(t *testing.T) {
    69  	rb := &ResourceBuilder{
    70  		Attrs: map[string]AttrType{
    71  			"foo": AttrTypeCreate,
    72  		},
    73  		ComputedAttrs: []string{
    74  			"foo",
    75  		},
    76  	}
    77  
    78  	state := &terraform.InstanceState{
    79  		ID: "foo",
    80  		Attributes: map[string]string{
    81  			"foo": "bar",
    82  		},
    83  	}
    84  	c := testConfig(t, nil, nil)
    85  
    86  	diff, err := rb.Diff(state, c)
    87  	if err != nil {
    88  		t.Fatalf("err: %s", err)
    89  	}
    90  	if diff != nil {
    91  		t.Fatalf("should be nil: %#v", diff)
    92  	}
    93  }
    94  
    95  func TestResourceBuilder_complex(t *testing.T) {
    96  	rb := &ResourceBuilder{
    97  		Attrs: map[string]AttrType{
    98  			"listener": AttrTypeUpdate,
    99  		},
   100  	}
   101  
   102  	state := &terraform.InstanceState{
   103  		ID: "foo",
   104  		Attributes: map[string]string{
   105  			"ignore":          "1",
   106  			"listener.#":      "1",
   107  			"listener.0.port": "80",
   108  		},
   109  	}
   110  
   111  	c := testConfig(t, map[string]interface{}{
   112  		"listener": []interface{}{
   113  			map[interface{}]interface{}{
   114  				"port": 3000,
   115  			},
   116  		},
   117  	}, nil)
   118  
   119  	diff, err := rb.Diff(state, c)
   120  	if err != nil {
   121  		t.Fatalf("err: %s", err)
   122  	}
   123  	if diff == nil {
   124  		t.Fatal("should not be nil")
   125  	}
   126  
   127  	actual := testResourceDiffStr(diff)
   128  	expected := testRBComplexDiff
   129  	if actual != expected {
   130  		t.Fatalf("bad: %s", actual)
   131  	}
   132  }
   133  
   134  func TestResourceBuilder_complexReplace(t *testing.T) {
   135  	rb := &ResourceBuilder{
   136  		Attrs: map[string]AttrType{
   137  			"listener": AttrTypeUpdate,
   138  		},
   139  	}
   140  
   141  	state := &terraform.InstanceState{
   142  		ID: "foo",
   143  		Attributes: map[string]string{
   144  			"ignore":          "1",
   145  			"listener.#":      "1",
   146  			"listener.0.port": "80",
   147  		},
   148  	}
   149  
   150  	c := testConfig(t, map[string]interface{}{
   151  		"listener": []interface{}{
   152  			map[interface{}]interface{}{
   153  				"value": "50",
   154  			},
   155  		},
   156  	}, nil)
   157  
   158  	diff, err := rb.Diff(state, c)
   159  	if err != nil {
   160  		t.Fatalf("err: %s", err)
   161  	}
   162  	if diff == nil {
   163  		t.Fatal("should not be nil")
   164  	}
   165  
   166  	actual := testResourceDiffStr(diff)
   167  	expected := testRBComplexReplaceDiff
   168  	if actual != expected {
   169  		t.Fatalf("bad: %s", actual)
   170  	}
   171  }
   172  
   173  func TestResourceBuilder_computedAttrsUpdate(t *testing.T) {
   174  	rb := &ResourceBuilder{
   175  		Attrs: map[string]AttrType{
   176  			"foo": AttrTypeUpdate,
   177  		},
   178  		ComputedAttrsUpdate: []string{
   179  			"bar",
   180  		},
   181  	}
   182  
   183  	state := &terraform.InstanceState{
   184  		Attributes: map[string]string{"foo": "foo"},
   185  	}
   186  	c := testConfig(t, map[string]interface{}{
   187  		"foo": "bar",
   188  	}, nil)
   189  
   190  	diff, err := rb.Diff(state, c)
   191  	if err != nil {
   192  		t.Fatalf("err: %s", err)
   193  	}
   194  	if diff == nil {
   195  		t.Fatal("diff shold not be nil")
   196  	}
   197  
   198  	actual := testResourceDiffStr(diff)
   199  	expected := testRBComputedAttrUpdate
   200  	if actual != expected {
   201  		t.Fatalf("bad: %s", actual)
   202  	}
   203  }
   204  
   205  func TestResourceBuilder_new(t *testing.T) {
   206  	rb := &ResourceBuilder{
   207  		Attrs: map[string]AttrType{
   208  			"foo": AttrTypeUpdate,
   209  		},
   210  		ComputedAttrs: []string{"private_ip"},
   211  	}
   212  
   213  	state := &terraform.InstanceState{}
   214  
   215  	c := testConfig(t, map[string]interface{}{
   216  		"foo": "bar",
   217  	}, nil)
   218  
   219  	diff, err := rb.Diff(state, c)
   220  	if err != nil {
   221  		t.Fatalf("err: %s", err)
   222  	}
   223  	if diff == nil {
   224  		t.Fatal("should not be nil")
   225  	}
   226  
   227  	actual := testResourceDiffStr(diff)
   228  	expected := testRBNewDiff
   229  	if actual != expected {
   230  		t.Fatalf("bad: %s", actual)
   231  	}
   232  }
   233  
   234  func TestResourceBuilder_preProcess(t *testing.T) {
   235  	rb := &ResourceBuilder{
   236  		Attrs: map[string]AttrType{
   237  			"foo": AttrTypeCreate,
   238  		},
   239  
   240  		PreProcess: map[string]PreProcessFunc{
   241  			"foo": func(v string) string {
   242  				return "bar" + v
   243  			},
   244  		},
   245  	}
   246  
   247  	state := &terraform.InstanceState{}
   248  	c := testConfig(t, map[string]interface{}{
   249  		"foo": "foo",
   250  	}, nil)
   251  
   252  	diff, err := rb.Diff(state, c)
   253  	if err != nil {
   254  		t.Fatalf("err: %s", err)
   255  	}
   256  	if diff == nil {
   257  		t.Fatal("diff shold not be nil")
   258  	}
   259  
   260  	actual := testResourceDiffStr(diff)
   261  	expected := testRBPreProcessDiff
   262  	if actual != expected {
   263  		t.Fatalf("bad: %s", actual)
   264  	}
   265  
   266  	actual = diff.Attributes["foo"].NewExtra.(string)
   267  	expected = "foo"
   268  	if actual != expected {
   269  		t.Fatalf("bad: %#v", actual)
   270  	}
   271  }
   272  
   273  func TestResourceBuilder_preProcessUnknown(t *testing.T) {
   274  	rb := &ResourceBuilder{
   275  		Attrs: map[string]AttrType{
   276  			"foo": AttrTypeCreate,
   277  		},
   278  
   279  		PreProcess: map[string]PreProcessFunc{
   280  			"foo": func(string) string {
   281  				return "bar"
   282  			},
   283  		},
   284  	}
   285  
   286  	state := &terraform.InstanceState{}
   287  	c := testConfig(t, map[string]interface{}{
   288  		"foo": "${var.unknown}",
   289  	}, map[string]string{
   290  		"var.unknown": config.UnknownVariableValue,
   291  	})
   292  
   293  	diff, err := rb.Diff(state, c)
   294  	if err != nil {
   295  		t.Fatalf("err: %s", err)
   296  	}
   297  	if diff == nil {
   298  		t.Fatal("diff shold not be nil")
   299  	}
   300  
   301  	actual := testResourceDiffStr(diff)
   302  	expected := testRBPreProcessUnknownDiff
   303  	if actual != expected {
   304  		t.Fatalf("bad: %s", actual)
   305  	}
   306  }
   307  
   308  func TestResourceBuilder_requiresNew(t *testing.T) {
   309  	rb := &ResourceBuilder{
   310  		ComputedAttrs: []string{"private_ip"},
   311  		Attrs: map[string]AttrType{
   312  			"ami": AttrTypeCreate,
   313  		},
   314  	}
   315  
   316  	state := &terraform.InstanceState{
   317  		ID: "1",
   318  		Attributes: map[string]string{
   319  			"ami":        "foo",
   320  			"private_ip": "127.0.0.1",
   321  		},
   322  	}
   323  
   324  	c := testConfig(t, map[string]interface{}{
   325  		"ami": "bar",
   326  	}, nil)
   327  
   328  	diff, err := rb.Diff(state, c)
   329  	if err != nil {
   330  		t.Fatalf("err: %s", err)
   331  	}
   332  	if diff == nil {
   333  		t.Fatal("should not be nil")
   334  	}
   335  
   336  	actual := testResourceDiffStr(diff)
   337  	expected := testRBRequiresNewDiff
   338  	if actual != expected {
   339  		t.Fatalf("bad: %s", actual)
   340  	}
   341  }
   342  
   343  func TestResourceBuilder_same(t *testing.T) {
   344  	rb := &ResourceBuilder{
   345  		ComputedAttrs: []string{"private_ip"},
   346  	}
   347  
   348  	state := &terraform.InstanceState{
   349  		ID: "1",
   350  		Attributes: map[string]string{
   351  			"foo": "bar",
   352  		},
   353  	}
   354  
   355  	c := testConfig(t, map[string]interface{}{
   356  		"foo": "bar",
   357  	}, nil)
   358  
   359  	diff, err := rb.Diff(state, c)
   360  	if err != nil {
   361  		t.Fatalf("err: %s", err)
   362  	}
   363  	if diff != nil {
   364  		t.Fatalf("should not diff: %#v", diff)
   365  	}
   366  }
   367  
   368  func TestResourceBuilder_unknown(t *testing.T) {
   369  	rb := &ResourceBuilder{
   370  		Attrs: map[string]AttrType{
   371  			"foo": AttrTypeUpdate,
   372  		},
   373  	}
   374  
   375  	state := &terraform.InstanceState{}
   376  
   377  	c := testConfig(t, map[string]interface{}{
   378  		"foo": "${var.unknown}",
   379  	}, map[string]string{
   380  		"var.foo":     "bar",
   381  		"var.unknown": config.UnknownVariableValue,
   382  	})
   383  
   384  	diff, err := rb.Diff(state, c)
   385  	if err != nil {
   386  		t.Fatalf("err: %s", err)
   387  	}
   388  	if diff == nil {
   389  		t.Fatal("should not be nil")
   390  	}
   391  
   392  	actual := testResourceDiffStr(diff)
   393  	expected := testRBUnknownDiff
   394  	if actual != expected {
   395  		t.Fatalf("bad: %s", actual)
   396  	}
   397  }
   398  
   399  func TestResourceBuilder_vars(t *testing.T) {
   400  	rb := &ResourceBuilder{
   401  		Attrs: map[string]AttrType{
   402  			"foo": AttrTypeUpdate,
   403  		},
   404  	}
   405  
   406  	state := &terraform.InstanceState{}
   407  
   408  	c := testConfig(t, map[string]interface{}{
   409  		"foo": "${var.foo}",
   410  	}, map[string]string{
   411  		"var.foo": "bar",
   412  	})
   413  
   414  	diff, err := rb.Diff(state, c)
   415  	if err != nil {
   416  		t.Fatalf("err: %s", err)
   417  	}
   418  	if diff == nil {
   419  		t.Fatal("should not be nil")
   420  	}
   421  
   422  	actual := testResourceDiffStr(diff)
   423  	expected := testRBVarsDiff
   424  	if actual != expected {
   425  		t.Fatalf("bad: %s", actual)
   426  	}
   427  }
   428  
   429  const testRBAttrSetComputedDiff = `CREATE
   430    IN  foo: "" => "bar" (forces new resource)
   431  `
   432  
   433  const testRBComplexDiff = `UPDATE
   434    IN  listener.0.port: "80" => "3000"
   435  `
   436  
   437  const testRBComplexReplaceDiff = `UPDATE
   438    IN  listener.0.port:  "80" => "<removed>"
   439    IN  listener.0.value: "" => "50"
   440  `
   441  
   442  const testRBComputedAttrUpdate = `UPDATE
   443    OUT bar: "" => "<computed>"
   444    IN  foo: "foo" => "bar"
   445  `
   446  
   447  const testRBNewDiff = `UPDATE
   448    IN  foo:        "" => "bar"
   449    OUT private_ip: "" => "<computed>"
   450  `
   451  
   452  const testRBPreProcessDiff = `CREATE
   453    IN  foo: "" => "barfoo" (forces new resource)
   454  `
   455  
   456  const testRBPreProcessUnknownDiff = `CREATE
   457    IN  foo: "" => "${var.unknown}" (forces new resource)
   458  `
   459  
   460  const testRBRequiresNewDiff = `CREATE
   461    IN  ami:        "foo" => "bar" (forces new resource)
   462    OUT private_ip: "127.0.0.1" => "<computed>"
   463  `
   464  
   465  const testRBUnknownDiff = `UPDATE
   466    IN  foo: "" => "${var.unknown}"
   467  `
   468  
   469  const testRBVarsDiff = `UPDATE
   470    IN  foo: "" => "bar"
   471  `