railpack

1package buildkit2 3import (4	"testing"5 6	specs "github.com/opencontainers/image-spec/specs-go/v1"7)8 9func TestValidatePlatform(t *testing.T) {10	tests := []struct {11		name     string12		input    string13		expected specs.Platform14		wantErr  bool15	}{16		{17			name:  "empty string returns Linux platform",18			input: "",19			// When no platform is specified, we default to a Linux platform that matches20			// the host architecture. This ensures container compatibility while preserving21			// performance characteristics of the host system.22			expected: func() specs.Platform {23				platform, _ := ParsePlatformWithDefaults("")24				return platform25			}(),26			wantErr: false,27		},28		{29			name:  "linux/arm64/v8",30			input: "linux/arm64/v8",31			expected: specs.Platform{32				OS:           "linux",33				Architecture: "arm64",34				Variant:      "v8",35			},36			wantErr: false,37		},38		{39			name:  "linux/amd64",40			input: "linux/amd64",41			expected: specs.Platform{42				OS:           "linux",43				Architecture: "amd64",44			},45			wantErr: false,46		},47		{48			name:    "invalid input",49			input:   "invalid",50			wantErr: true,51		},52		{53			name:    "multiple platforms not supported",54			input:   "linux/amd64,linux/arm64",55			wantErr: true,56		},57	}58 59	for _, tt := range tests {60		t.Run(tt.name, func(t *testing.T) {61			got, err := ParsePlatformWithDefaults(tt.input)62			if tt.wantErr {63				if err == nil {64					t.Errorf("ParsePlatformWithDefaults() expected error but got none")65				}66				return67			}68			if err != nil {69				t.Errorf("ParsePlatformWithDefaults() error = %v", err)70				return71			}72			if got.OS != tt.expected.OS || got.Architecture != tt.expected.Architecture || got.Variant != tt.expected.Variant {73				t.Errorf("ParsePlatformWithDefaults() = %v, want %v", got, tt.expected)74			}75		})76	}77}78 79func TestValidatePlatformWithMultiplePlatforms(t *testing.T) {80	tests := []struct {81		name     string82		input    string83		expected specs.Platform84		wantErr  bool85	}{86		{87			name:  "empty string returns Linux platform",88			input: "",89			expected: func() specs.Platform {90				platform, _ := ParsePlatformWithDefaults("")91				return platform92			}(),93			wantErr: false,94		},95		{96			name:  "linux/arm64/v8",97			input: "linux/arm64/v8",98			expected: specs.Platform{99				OS:           "linux",100				Architecture: "arm64",101				Variant:      "v8",102			},103			wantErr: false,104		},105		{106			name:  "linux/amd64",107			input: "linux/amd64",108			expected: specs.Platform{109				OS:           "linux",110				Architecture: "amd64",111			},112			wantErr: false,113		},114		{115			name:    "invalid input",116			input:   "invalid",117			wantErr: true,118		},119		{120			name:    "multiple platforms not supported",121			input:   "linux/amd64,linux/arm64",122			wantErr: true,123		},124	}125 126	for _, tt := range tests {127		t.Run(tt.name, func(t *testing.T) {128			opts := map[string]string{"platform": tt.input}129			got, err := validatePlatform(opts)130			if tt.wantErr {131				if err == nil {132					t.Errorf("validatePlatform() expected error but got none")133				}134				return135			}136			if err != nil {137				t.Errorf("validatePlatform() error = %v", err)138				return139			}140			if got.OS != tt.expected.OS || got.Architecture != tt.expected.Architecture || got.Variant != tt.expected.Variant {141				t.Errorf("validatePlatform() = %v, want %v", got, tt.expected)142			}143		})144	}145}146