dolt/bats/schema-changes.bats

#!/usr/bin/env bats
load $BATS_TEST_DIRNAME/helper/common.bash

setup() {
    setup_common

    dolt sql <<SQL
CREATE TABLE test (
  pk BIGINT NOT NULL COMMENT 'tag:0',
  c1 BIGINT COMMENT 'tag:1',
  c2 BIGINT COMMENT 'tag:2',
  c3 BIGINT COMMENT 'tag:3',
  c4 BIGINT COMMENT 'tag:4',
  c5 BIGINT COMMENT 'tag:5',
  PRIMARY KEY (pk)
);
SQL
}

teardown() {
    teardown_common
}

@test "changing column types should not produce a data diff error" {
    dolt sql -q 'insert into test values (0,0,0,0,0,0)'
    dolt add test
    dolt commit -m 'made table'
    dolt sql -q 'alter table test drop column c1'
    dolt sql -q 'alter table test add column c1 longtext'
    run dolt diff
    [ "$status" -eq 0 ]
    [[ "$output" =~ "BIGINT" ]] || false
    [[ "$output" =~ "LONGTEXT" ]] || false
    [[ ! "$ouput" =~ "Failed to merge schemas" ]] || false
}

@test "dolt schema rename column" {
    dolt sql -q 'insert into test values (1,1,1,1,1,1)'
    run dolt sql -q "alter table test rename column c1 to c0"
    [ "$status" -eq 0 ]
    run dolt schema show test
    [ "$status" -eq 0 ]
    [[ "$output" =~ "test @ working" ]] || false
    [[ "$output" =~ "CREATE TABLE \`test\`" ]] || false
    [[ "$output" =~ "\`pk\` bigint NOT NULL" ]] || false
    [[ "$output" =~ "\`c2\` bigint" ]] || false
    [[ "$output" =~ "\`c3\` bigint" ]] || false
    [[ "$output" =~ "\`c4\` bigint" ]] || false
    [[ "$output" =~ "\`c5\` bigint" ]] || false
    [[ "$output" =~ "PRIMARY KEY (\`pk\`)" ]] || false
    [[ "$output" =~ "\`c0\` bigint" ]] || false
    [[ ! "$output" =~ "\`c1\` bigint" ]] || false
    dolt sql -q "select * from test"
}

@test "dolt schema delete column" {
    dolt sql -q 'insert into test values (1,1,1,1,1,1)'
    run dolt sql -q "alter table test drop column c1"
    [ "$status" -eq 0 ]
    run dolt schema show test
    [ "$status" -eq 0 ]
    [[ "$output" =~ "test @ working" ]] || false
    [[ "$output" =~ "CREATE TABLE \`test\`" ]] || false
    [[ "$output" =~ "\`pk\` bigint NOT NULL" ]] || false
    [[ "$output" =~ "\`c2\` bigint" ]] || false
    [[ "$output" =~ "\`c3\` bigint" ]] || false
    [[ "$output" =~ "\`c4\` bigint" ]] || false
    [[ "$output" =~ "\`c5\` bigint" ]] || false
    [[ "$output" =~ "PRIMARY KEY (\`pk\`)" ]] || false
    [[ ! "$output" =~ "\`c1\` bigint" ]] || false
    dolt sql -q "select * from test"
}

@test "dolt diff on schema changes" {
    dolt add test
    dolt commit -m "committed table so we can see diffs"
    dolt sql -q "alter table test add c0 bigint"
    run dolt diff
    [ "$status" -eq 0 ]
    [[ "$output" =~ \+[[:space:]]+\`c0\` ]] || false
    [[ "$output" =~ "| c0 |" ]] || false
    run dolt diff --schema
    [ "$status" -eq 0 ]
    [[ "$output" =~ \+[[:space:]]+\`c0\` ]] || false
    [[ ! "$output" =~ "| c0 |" ]] || false
    run dolt diff --data
    [ "$status" -eq 0 ]
    [[ ! "$output" =~ \+[[:space:]]+\`c0\` ]] || false
    [[ "$output" =~ "| c0 |" ]] || false
    [[ "$output" =~ ">" ]] || false
    [[ "$output" =~ "<" ]] || false
    # Check for a blank column in the diff output
    [[ "$output" =~ \|[[:space:]]+\| ]] || false
    dolt sql -q "insert into test (pk,c0,c1,c2,c3,c4,c5) values (0,0,0,0,0,0,0)"
    run dolt diff
    [ "$status" -eq 0 ]
    [[ "$output" =~ \|[[:space:]]+c0[[:space:]]+\| ]] || false
    [[ "$output" =~ \+[[:space:]]+[[:space:]]+\|[[:space:]]+0 ]] || false
    dolt sql -q "alter table test drop column c0"
    dolt diff
}

@test "adding and dropping column should produce no diff" {
    dolt add test
    dolt commit -m "committed table so we can see diffs"
    dolt sql -q "alter table test add c0 bigint"
    dolt sql -q "alter table test drop column c0"
    run dolt diff
    [ "$status" -eq 0 ]
    [ "$output" = "" ]
}

@test "schema diff should show primary keys in output" {
    dolt add test
    dolt commit -m "committed table so we can see diffs"
    dolt sql -q 'alter table test rename column c2 to column2'
    run dolt diff --schema
    [ "$status" -eq 0 ]
    [[ "$output" =~ "PRIMARY KEY" ]] || false
}

@test "changing column does not allow nulls in primary key" {
    dolt sql <<SQL
CREATE TABLE test2(
  pk1 BIGINT,
  pk2 BIGINT,
  v1 BIGINT,
  PRIMARY KEY(pk1, pk2)
);
SQL
    run dolt sql -q "INSERT INTO test2 (pk1, pk2) VALUES (1, null)"
    [ "$status" -eq 1 ]
    dolt sql -q "ALTER TABLE test2 CHANGE pk2 pk2new BIGINT"
    run dolt sql -q "INSERT INTO test2 (pk1, pk2new) VALUES (1, null)"
    [ "$status" -eq 1 ]
}