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* Implement checks for existing primary keys before adding new ones. * Drop auto-generated primary keys if they exist. * Add tests for primary key existence and column size specifiers. * Improve type conversion handling for PostgreSQL compatibility.
441 lines
12 KiB
Go
441 lines
12 KiB
Go
package pgsql
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import (
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"bytes"
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"strings"
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"testing"
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"git.warky.dev/wdevs/relspecgo/pkg/models"
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"git.warky.dev/wdevs/relspecgo/pkg/writers"
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)
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func TestWriteDatabase(t *testing.T) {
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// Create a test database
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db := models.InitDatabase("testdb")
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schema := models.InitSchema("public")
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// Create a test table
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table := models.InitTable("users", "public")
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table.Description = "User accounts table"
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// Add columns
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idCol := models.InitColumn("id", "users", "public")
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idCol.Type = "integer"
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idCol.Description = "Primary key"
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idCol.Default = "nextval('public.identity_users_id'::regclass)"
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table.Columns["id"] = idCol
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nameCol := models.InitColumn("name", "users", "public")
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nameCol.Type = "text"
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nameCol.Description = "User name"
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table.Columns["name"] = nameCol
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emailCol := models.InitColumn("email", "users", "public")
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emailCol.Type = "text"
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emailCol.Description = "Email address"
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table.Columns["email"] = emailCol
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// Add primary key constraint
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pkConstraint := &models.Constraint{
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Name: "pk_users",
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Type: models.PrimaryKeyConstraint,
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Columns: []string{"id"},
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}
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table.Constraints["pk_users"] = pkConstraint
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// Add unique index
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uniqueEmailIndex := &models.Index{
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Name: "uidx_users_email",
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Unique: true,
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Columns: []string{"email"},
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}
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table.Indexes["uidx_users_email"] = uniqueEmailIndex
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schema.Tables = append(schema.Tables, table)
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db.Schemas = append(db.Schemas, schema)
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// Create writer with output to buffer
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var buf bytes.Buffer
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options := &writers.WriterOptions{}
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writer := NewWriter(options)
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writer.writer = &buf
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// Write the database
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err := writer.WriteDatabase(db)
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if err != nil {
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t.Fatalf("WriteDatabase failed: %v", err)
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}
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output := buf.String()
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// Print output for debugging
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t.Logf("Generated SQL:\n%s", output)
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// Verify output contains expected elements
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expectedStrings := []string{
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"CREATE TABLE",
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"PRIMARY KEY",
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"UNIQUE INDEX",
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"COMMENT ON TABLE",
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"COMMENT ON COLUMN",
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}
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for _, expected := range expectedStrings {
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if !strings.Contains(output, expected) {
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t.Errorf("Output missing expected string: %s\nFull output:\n%s", expected, output)
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}
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}
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}
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func TestWriteForeignKeys(t *testing.T) {
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// Create a test database with two related tables
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db := models.InitDatabase("testdb")
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schema := models.InitSchema("public")
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// Create parent table (users)
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usersTable := models.InitTable("users", "public")
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idCol := models.InitColumn("id", "users", "public")
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idCol.Type = "integer"
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usersTable.Columns["id"] = idCol
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// Create child table (posts)
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postsTable := models.InitTable("posts", "public")
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postIdCol := models.InitColumn("id", "posts", "public")
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postIdCol.Type = "integer"
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postsTable.Columns["id"] = postIdCol
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userIdCol := models.InitColumn("user_id", "posts", "public")
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userIdCol.Type = "integer"
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postsTable.Columns["user_id"] = userIdCol
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// Add foreign key constraint
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fkConstraint := &models.Constraint{
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Name: "fk_posts_users",
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Type: models.ForeignKeyConstraint,
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Columns: []string{"user_id"},
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ReferencedTable: "users",
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ReferencedSchema: "public",
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ReferencedColumns: []string{"id"},
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OnDelete: "CASCADE",
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OnUpdate: "CASCADE",
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}
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postsTable.Constraints["fk_posts_users"] = fkConstraint
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// Add relationship
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relationship := &models.Relationship{
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Name: "fk_posts_users",
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FromTable: "posts",
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FromSchema: "public",
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ToTable: "users",
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ToSchema: "public",
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ForeignKey: "fk_posts_users",
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}
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postsTable.Relationships["fk_posts_users"] = relationship
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schema.Tables = append(schema.Tables, usersTable, postsTable)
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db.Schemas = append(db.Schemas, schema)
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// Create writer with output to buffer
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var buf bytes.Buffer
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options := &writers.WriterOptions{}
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writer := NewWriter(options)
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writer.writer = &buf
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// Write the database
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err := writer.WriteDatabase(db)
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if err != nil {
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t.Fatalf("WriteDatabase failed: %v", err)
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}
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output := buf.String()
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// Print output for debugging
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t.Logf("Generated SQL:\n%s", output)
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// Verify foreign key is present
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if !strings.Contains(output, "FOREIGN KEY") {
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t.Errorf("Output missing FOREIGN KEY statement\nFull output:\n%s", output)
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}
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if !strings.Contains(output, "ON DELETE CASCADE") {
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t.Errorf("Output missing ON DELETE CASCADE\nFull output:\n%s", output)
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}
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if !strings.Contains(output, "ON UPDATE CASCADE") {
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t.Errorf("Output missing ON UPDATE CASCADE\nFull output:\n%s", output)
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}
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}
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func TestWriteTable(t *testing.T) {
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// Create a single table
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table := models.InitTable("products", "public")
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idCol := models.InitColumn("id", "products", "public")
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idCol.Type = "integer"
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table.Columns["id"] = idCol
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nameCol := models.InitColumn("name", "products", "public")
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nameCol.Type = "text"
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table.Columns["name"] = nameCol
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// Create writer with output to buffer
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var buf bytes.Buffer
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options := &writers.WriterOptions{}
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writer := NewWriter(options)
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writer.writer = &buf
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// Write the table
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err := writer.WriteTable(table)
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if err != nil {
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t.Fatalf("WriteTable failed: %v", err)
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}
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output := buf.String()
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// Verify output contains table creation
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if !strings.Contains(output, "CREATE TABLE") {
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t.Error("Output missing CREATE TABLE statement")
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}
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if !strings.Contains(output, "products") {
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t.Error("Output missing table name 'products'")
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}
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}
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func TestEscapeQuote(t *testing.T) {
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tests := []struct {
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input string
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expected string
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}{
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{"simple text", "simple text"},
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{"text with 'quote'", "text with ''quote''"},
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{"multiple 'quotes' here", "multiple ''quotes'' here"},
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{"", ""},
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}
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for _, tt := range tests {
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result := escapeQuote(tt.input)
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if result != tt.expected {
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t.Errorf("escapeQuote(%q) = %q, want %q", tt.input, result, tt.expected)
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}
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}
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}
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func TestIsIntegerType(t *testing.T) {
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tests := []struct {
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input string
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expected bool
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}{
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{"integer", true},
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{"INTEGER", true},
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{"bigint", true},
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{"smallint", true},
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{"serial", true},
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{"bigserial", true},
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{"text", false},
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{"varchar", false},
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{"uuid", false},
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}
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for _, tt := range tests {
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result := isIntegerType(tt.input)
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if result != tt.expected {
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t.Errorf("isIntegerType(%q) = %v, want %v", tt.input, result, tt.expected)
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}
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}
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}
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func TestTypeConversion(t *testing.T) {
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// Test that invalid Go types are converted to valid PostgreSQL types
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db := models.InitDatabase("testdb")
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schema := models.InitSchema("public")
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// Create a test table with Go types instead of SQL types
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table := models.InitTable("test_types", "public")
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// Add columns with Go types (invalid for PostgreSQL)
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stringCol := models.InitColumn("name", "test_types", "public")
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stringCol.Type = "string" // Should be converted to "text"
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table.Columns["name"] = stringCol
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int64Col := models.InitColumn("big_id", "test_types", "public")
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int64Col.Type = "int64" // Should be converted to "bigint"
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table.Columns["big_id"] = int64Col
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int16Col := models.InitColumn("small_id", "test_types", "public")
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int16Col.Type = "int16" // Should be converted to "smallint"
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table.Columns["small_id"] = int16Col
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schema.Tables = append(schema.Tables, table)
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db.Schemas = append(db.Schemas, schema)
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// Create writer with output to buffer
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var buf bytes.Buffer
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options := &writers.WriterOptions{}
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writer := NewWriter(options)
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writer.writer = &buf
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// Write the database
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err := writer.WriteDatabase(db)
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if err != nil {
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t.Fatalf("WriteDatabase failed: %v", err)
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}
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output := buf.String()
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// Print output for debugging
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t.Logf("Generated SQL:\n%s", output)
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// Verify that Go types were converted to PostgreSQL types
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if strings.Contains(output, "string") {
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t.Errorf("Output contains 'string' type - should be converted to 'text'\nFull output:\n%s", output)
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}
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if strings.Contains(output, "int64") {
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t.Errorf("Output contains 'int64' type - should be converted to 'bigint'\nFull output:\n%s", output)
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}
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if strings.Contains(output, "int16") {
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t.Errorf("Output contains 'int16' type - should be converted to 'smallint'\nFull output:\n%s", output)
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}
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// Verify correct PostgreSQL types are present
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if !strings.Contains(output, "text") {
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t.Errorf("Output missing 'text' type (converted from 'string')\nFull output:\n%s", output)
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}
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if !strings.Contains(output, "bigint") {
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t.Errorf("Output missing 'bigint' type (converted from 'int64')\nFull output:\n%s", output)
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}
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if !strings.Contains(output, "smallint") {
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t.Errorf("Output missing 'smallint' type (converted from 'int16')\nFull output:\n%s", output)
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}
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}
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func TestPrimaryKeyExistenceCheck(t *testing.T) {
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db := models.InitDatabase("testdb")
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schema := models.InitSchema("public")
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table := models.InitTable("products", "public")
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idCol := models.InitColumn("id", "products", "public")
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idCol.Type = "integer"
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idCol.IsPrimaryKey = true
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table.Columns["id"] = idCol
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nameCol := models.InitColumn("name", "products", "public")
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nameCol.Type = "text"
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table.Columns["name"] = nameCol
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schema.Tables = append(schema.Tables, table)
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db.Schemas = append(db.Schemas, schema)
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var buf bytes.Buffer
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options := &writers.WriterOptions{}
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writer := NewWriter(options)
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writer.writer = &buf
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err := writer.WriteDatabase(db)
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if err != nil {
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t.Fatalf("WriteDatabase failed: %v", err)
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}
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output := buf.String()
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t.Logf("Generated SQL:\n%s", output)
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// Verify our naming convention is used
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if !strings.Contains(output, "pk_public_products") {
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t.Errorf("Output missing expected primary key name 'pk_public_products'\nFull output:\n%s", output)
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}
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// Verify it drops auto-generated primary keys
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if !strings.Contains(output, "products_pkey") || !strings.Contains(output, "DROP CONSTRAINT") {
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t.Errorf("Output missing logic to drop auto-generated primary key\nFull output:\n%s", output)
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}
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// Verify it checks for our specific named constraint before adding it
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if !strings.Contains(output, "constraint_name = 'pk_public_products'") {
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t.Errorf("Output missing check for our named primary key constraint\nFull output:\n%s", output)
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}
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}
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func TestColumnSizeSpecifiers(t *testing.T) {
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db := models.InitDatabase("testdb")
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schema := models.InitSchema("public")
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table := models.InitTable("test_sizes", "public")
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// Integer with invalid size specifier - should ignore size
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integerCol := models.InitColumn("int_col", "test_sizes", "public")
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integerCol.Type = "integer"
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integerCol.Length = 32
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table.Columns["int_col"] = integerCol
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// Bigint with invalid size specifier - should ignore size
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bigintCol := models.InitColumn("bigint_col", "test_sizes", "public")
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bigintCol.Type = "bigint"
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bigintCol.Length = 64
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table.Columns["bigint_col"] = bigintCol
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// Smallint with invalid size specifier - should ignore size
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smallintCol := models.InitColumn("smallint_col", "test_sizes", "public")
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smallintCol.Type = "smallint"
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smallintCol.Length = 16
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table.Columns["smallint_col"] = smallintCol
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// Text with length - should convert to varchar
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textCol := models.InitColumn("text_col", "test_sizes", "public")
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textCol.Type = "text"
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textCol.Length = 100
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table.Columns["text_col"] = textCol
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// Varchar with length - should keep varchar with length
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varcharCol := models.InitColumn("varchar_col", "test_sizes", "public")
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varcharCol.Type = "varchar"
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varcharCol.Length = 50
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table.Columns["varchar_col"] = varcharCol
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// Decimal with precision and scale - should keep them
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decimalCol := models.InitColumn("decimal_col", "test_sizes", "public")
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decimalCol.Type = "decimal"
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decimalCol.Precision = 19
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decimalCol.Scale = 4
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table.Columns["decimal_col"] = decimalCol
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schema.Tables = append(schema.Tables, table)
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db.Schemas = append(db.Schemas, schema)
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var buf bytes.Buffer
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options := &writers.WriterOptions{}
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writer := NewWriter(options)
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writer.writer = &buf
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err := writer.WriteDatabase(db)
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if err != nil {
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t.Fatalf("WriteDatabase failed: %v", err)
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}
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output := buf.String()
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t.Logf("Generated SQL:\n%s", output)
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// Verify invalid size specifiers are NOT present
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invalidPatterns := []string{
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"integer(32)",
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"bigint(64)",
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"smallint(16)",
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"text(100)",
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}
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for _, pattern := range invalidPatterns {
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if strings.Contains(output, pattern) {
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t.Errorf("Output contains invalid pattern '%s' - PostgreSQL doesn't support this\nFull output:\n%s", pattern, output)
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}
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}
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// Verify valid patterns ARE present
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validPatterns := []string{
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"integer", // without size
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"bigint", // without size
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"smallint", // without size
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"varchar(100)", // text converted to varchar with length
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"varchar(50)", // varchar with length
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"decimal(19,4)", // decimal with precision and scale
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}
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for _, pattern := range validPatterns {
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if !strings.Contains(output, pattern) {
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t.Errorf("Output missing expected pattern '%s'\nFull output:\n%s", pattern, output)
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}
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}
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}
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